THEFT DETERRENT – THEFT DETERRENT SYSTEM

TD–1

THEFT DETERRENT SYSTEM
PRECAUTION
NOTICE:
For initialization:
When disconnecting the cable from the negative (-)
battery terminal, initialize the following system after the
cable is reconnected.
System Name
Power Window Control System

See procedure
IN-32

For hybrid control system activation:
When the warning light is illuminated or the battery has
been disconnected and reconnected, pressing the power
switch may not start the system on the first try. If so,
press the power switch again.

TD

TD–2

THEFT DETERRENT – THEFT DETERRENT SYSTEM

PARTS LOCATION

TD
ENGINE HOOD COURTESY SWITCH

SECURITY HORN

HEADLIGHT
- HEADLIGHT
- HAZARD WARNING LIGHT

LOW PITCHED HORN

ENGINE ROOM JUNCTION BLOCK, RELAY BLOCK
- INTEGRATION RELAY (UNIT B: HORN RELAY)
- DC/DC H-FUSE
- P/I H-FUSE
- DOME FUSE
- HORN FUSE

HIGH PITCHED HORN

B126377E03

THEFT DETERRENT – THEFT DETERRENT SYSTEM

TD–3

TD
CENTER NO. 1 CONNECTOR

POWER SOURCE
CONTROL ECU

CENTER NO. 2 CONNECTOR

KEY SLOT
DRIVER SIDE JUNCTION BLOCK
- MAIN BODY ECU
- IG1 RELAY
- ECU-IG FUSE
- AM1 FUSE

B126379E01

TD–4

THEFT DETERRENT – THEFT DETERRENT SYSTEM

FRONT DOOR COURTESY LIGHT
SWITCH RH

TD

FRONT DOOR LOCK RH

ROOM LIGHT
REAR DOOR LOCK RH

SECURITY INDICATOR LIGHT
REAR DOOR COURTESY
LIGHT SWITCH RH

FRONT DOOR LOCK LH

FRONT DOOR COURTESY
LIGHT SWITCH LH
REAR DOOR LOCK LH

REAR DOOR COURTESY
LIGHT SWITCH LH

BACK DOOR LOCK

FUSIBLE LINK BLOCK
- MAIN H-FUSE
- DC/DC-S FUSE

B126378E03

TD–5

THEFT DETERRENT – THEFT DETERRENT SYSTEM

SYSTEM DIAGRAM

Door Lock Motors

Door Control Receiver

Back Door Lock Motor

Certification ECU*

Flasher Relay

Door Courtesy Switches

Taillight Relay

Back Door Courtesy
Switch

Main Body
ECU

Headlight Relay

Key (Door
Control
Transmitter)

Engine Hood Courtesy
Switch
Horn Relay

Security Horn

Door Position Switch
(P, PR, RL)

Room Light (Interior Light)

Door Lock/Unlock Switch

Security Indicator Light

Key Slot (Halfway Switch)

Network
Gateway ECU

BEAN
Power Source Control ECU

Power Switch

POWER

CAN
Hybrid Vehicle
Control ECU

ECM

*: w/ Smart Key System

B126380E01

TD

TD–6

THEFT DETERRENT – THEFT DETERRENT SYSTEM
Sender

Receiver

Hybrid vehicle control ECU
ECM
Power source control ECU

TD

Main body ECU

Signal
•
•

Drive OK signal
READY signal

•
•

Engine revolution signal
Engine speed signal

Power switch signal

Line

BEAN/CAN

BEAN

THEFT DETERRENT – THEFT DETERRENT SYSTEM

TD–7

SYSTEM DESCRIPTION
1.

THEFT DETERRENT SYSTEM DESCRIPTION
(a) The theft deterrent system is designed to deter
break-in and theft. If an attempted break-in or theft
is detected, a vehicle horns and security horn will
sound; room light will light up; and hazard warning
lights, taillights and headlights will flash
continuously. The system uses the following cues to
detect an attempted break-in or theft: 1) vehicle is
forcibly entered, 2) engine hood is forcibly opened,
3) doors are unlocked without the use of a key, or 4)
the battery cables are disconnected and then
reconnected.
The system has 2 modes: active arming mode and
passive arming mode (see page TD-8). Passive
arming mode can be toggled ON and OFF (see
page TD-8).
Each mode has 4 states; disarmed state, arming
preparation state, armed state and alarm sounding
state.
(1) Disarmed state:
• The alarm function is not operating.
• The theft deterrent system is not operating.
(2) Arming preparation state:
The theft deterrent system is not operating.
(3) Armed state:
The theft deterrent system is operating (60 +-5
seconds).
(4) Alarm sounding state:
The alarm function is operating.

TD

TD–8

THEFT DETERRENT – THEFT DETERRENT SYSTEM

HOW TO PROCEED WITH
TROUBLESHOOTING
HINT:
• Use these procedures to troubleshoot the theft deterrent
system.
• *: Use the intelligent tester.

TD

1

VEHICLE BROUGHT TO WORKSHOP

NEXT

2

INSPECT BATTERY VOLTAGE
Standard voltage:
11 to 14 V
If the result is not as specified, recharge or replace the
battery before proceeding.

NEXT

3

INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX
COMMUNICATION SYSTEM (BEAN)*
(a) Use the intelligent tester, check for normal function of the
multiplex communication system (see page TD-21).
Result:
Result

Proceed to

MPX DTC is not output

A

MPX DTC is output

B

B

Go to MULTIPLEX COMMUNICATION
SYSTEM

A

4

PROBLEM SYMPTOMS TABLE
Result:
Result

Proceed to

Fault is not listed in problem symptoms
table

A

Fault is listed in problem symptoms
table

B

B
A

Go to step 6

THEFT DETERRENT – THEFT DETERRENT SYSTEM

5

OVERALL ANALYSIS AND TROUBLESHOOTING*
(a)
(b)
(c)
(d)

NEXT

6

ADJUST, REPAIR OR REPLACE

NEXT

7
NEXT
END

TD–9

CONFIRMATION TEST

Operation Check (see page TD-8)
DATA LIST/ ACTIVE TEST (see page TD-21)
Terminals of ECU (see page TD-18)
Inspection
(1) Engine hood courtesy switch (see page TD-42)
(2) Security horn (see page TD-43)

TD

TD–10

THEFT DETERRENT – THEFT DETERRENT SYSTEM

OPERATION CHECK
1.

TD

OUTLINE OF THEFT DETERRENT SYSTEM
(a) When the theft deterrent system detects that the
vehicle is being tampered with, the vehicle horns
and security horn will sound and hazard warning
lights will flash continuously.
(b) The system has 2 modes: active arming mode (refer
to "ACTIVE ARMING MODE") and passive arming
mode (refer to "PASSIVE ARMING MODE").
Passive arming mode can be turned on and off.
(c) Each mode has 4 states: disarmed state, arming
preparation state, armed state and alarm sounding
state.
(1) Disarmed state:
• The alarm function is not operating.
• The theft deterrent system is not operating.
(2) Arming preparation state:
The theft deterrent system is not operating.
(3) Armed state:
The theft deterrent system is operating.
(4) Alarm sounding state:
The theft deterrent system is operating (60 +-5
seconds).
Refer to table below for alarm method and time:
Hazard Warning Light
Vehicle Horn

Sounding (cycle of 0.4 seconds)

Security Horn

Alarm Method

Headlight

Blinking (cycle of 0.4 seconds)

Taillight
Room Light
Alarm Time

Illuminating

60 +-5 seconds

2.

System State

Disarmed state

Blinking (cycle of flasher relay)

HINT:
If, during the alarm sounding state, one of the
doors is unlocked and no key is in the key slot, a
forced door lock signal will be output (refer to
"FORCED DOOR LOCK CONTROL").
ACTIVE ARMING MODE
HINT:
Active arming mode starts the alarm control immediately
after the doors are locked.

State Switching Condition
Performing any of following will cause system
to go into "Arming preparation state"
• With all doors and engine hood closed,
lock all doors by key operation
• With all doors and engine hood closed,
lock all doors by wireless operation
• With any door or engine hood open, lock
all doors and close all doors and engine
hood

Switches to

Arming preparation state

TD–11

THEFT DETERRENT – THEFT DETERRENT SYSTEM
System State

Arming preparation state

Armed State

Alarm sounding state

State Switching Condition

Switches to

Performing any of following will cause system
to go into "Disarmed state"
• Unlock all doors by wireless operation
• Unlock all doors by key operation
• Unlock any door
• Open any door
• Open engine hood
• Insert key into key slot
• Reconnect battery
• Turn power switch from OFF to ON (IG)

Disarmed state

Performing following will cause system to go
into "Armed state"
With all doors and engine hood closed, lock
all doors. Allow 30 (+-1.5) seconds to elapse.

Armed state

Performing any of following will cause system
to return to "Disarmed state"
• Insert key into key slot, turn power switch
ON (IG). Run engine over 550 rpm for 10
to 12 seconds.
• Unlock any door by wireless operation
• Unlock any door by key operation
• Insert key into key slot and turn power
switch from OFF to ON (IG)

Disarmed state

Performing any of following will cause system
to start "Alarm sounding state"
• Open engine hood
• Reconnect battery
• Open any door
• Unlock any door without key and wireless
operation
• Directly connect power switch without key
(or turn power switch ON (IG) without key)

Alarm sounding state

Performing any of following will cause system
to return to "Disarmed state"
• Unlock any door by wireless operation
• Unlock any door by key operation
• Insert key into key slot and turn power
switch from OFF to ON (IG)

Disarmed state (alarm operation is canceled)

When system detects tampering, horns sound
and lights illuminate or blink.
After 60 (+-5) seconds, alarm stops and
system return to "Armed state".

Armed state (alarm stops sounding)

3.

PASSIVE ARMING MODE
HINT:
• Passive arming mode can be turned on and off (refer
to "METHOD FOR CHANGING OF PASSIVE MODE
(ON OR OFF)).
• The vehicle's initial alarm setting is active arming
mode.
• During passive arming mode, the theft deterrent
system enters the armed state even if the doors are
not locked.
• Passive arming mode starts the alarm control after
the doors are closed.
• Detecting that the doors are unlocked does not set off
the alarm during passive arming mode.
• A forced door lock signal is not output during passive
arming mode (refer to "FORCED DOOR LOCK
CONTROL").

TD

TD–12

THEFT DETERRENT – THEFT DETERRENT SYSTEM

• When the theft deterrent system detects that the
doors are opened during passive arming mode, the
alarm is not set off immediately depending on the
entry delay time setting.
• If one of the following conditions is fulfilled during
passive arming mode, the theft deterrent system will
be changed to active arming mode.
– With all doors and engine hood closed, lock all
doors by wireless operation.
– With all doors and engine hood closed, lock all
doors by key operation.
– With any doors or engine hood open, lock all doors
and close all doors and engine hood.

TD
System State

State Switching Condition

Disarmed state (1)*1 (no key in key slot and
smart key system is canceled)

Performing any of following will cause system
to go into "Disarmed state (2)"
• With power switch OFF, open any door
engine hood, and pull out key from key
slot
• With power switch OFF, pull out key from
key slot, and open any door or engine
hood

Disarmed state (2)

Performing following will cause system to go
into "Arming preparation state"
Close all doors and engine hood

Arming preparation state

Performing any of following will cause system
to return to "Disarmed state (1)"
• Unlock all doors by wireless operation
• Unlock all doors by key operation
• Reconnect battery
• Turn power switch from OFF to ON (IG)
• Insert key into key slot

Disarmed state (1)

Performing any of following will cause system
to return to "Disarmed state (1)"
• Unlock all doors by wireless operation
• Unlock all doors by key operation
• Reconnect battery
• Turn power switch from OFF to ON (IG)
• Insert key into key slot

Disarmed state (1)

Performing following will cause system to go
into "Armed state"
With all doors and engine hood closed, allow
30 (+-1.5) seconds to elapse

Armed state

Performing any of following will cause system
to return to "Disarmed state (2)"

Disarmed state (2)

Performing any of following will cause system
to return to "Disarmed state (1)"
• Unlock all doors by wireless operation
• Unlock all doors by key operation
• Insert key into key slot and turn power
switch from OFF to ON (IG)

Disarmed state (1)

Performing any of following will cause system
to "Alarm sounding state"
• Open any door and allow entry delay
time*3 to elapse
• Open engine hood
• Reconnect battery
• Directly connect power switch without key
(or push power switch ON without key)

Alarm sounding state (tampering is detected)

Disarmed state (2)*2

Arming preparation state

Armed state

Switches to

TD–13

THEFT DETERRENT – THEFT DETERRENT SYSTEM
System State

Alarm sounding state

State Switching Condition

Switches to

Performing any of following will cause system
to return to "Disarmed state (1)"
• Unlock all doors by wireless operation
• Unlock all doors by key operation
• Insert key into key slot and turn power
switch from OFF to ON (IG)

Disarmed state (1)

When system detects tampering, horns
sounds and lights illuminate or blink.
After 60 (+-5) seconds, alarm stops and
system return to "Armed state"

Armed state (alarm stops)

HINT:
*1: "Disarmed state (1)" is the normal disarmed state.
*2: "Disarmed state (2)" is set from either the "Disarmed
state (1)" or the "Arming preparation state".
*3: When a door is opened while all doors are closed
during passive arming mode, the entry delay time starts.
If the state switching condition [from armed state to
disarmed state (1)] is fulfilled during the entry delay time,
the theft deterrent system will return to disarmed state
(1). However, if the state switching condition is not
fulfilled, the theft deterrent system will assume that a
break-in or theft is occurring and sound the alarm.
The entry delay time can be selected among the
following: 0, 14 or 30 seconds.

TD

TD–14

THEFT DETERRENT – THEFT DETERRENT SYSTEM

4.

METHOD FOR CHANGING OF PASSIVE MODE (ON
OR OFF)

Vehicle initial condition

No key in key slot
Only driver side door is opened
All doors unlocked

TD
Within 5
seconds

Insert and remove key from key slot 3 times

: Input to the vehicle

: Output from the vehicle
Close driver side door
: CORRECT
Lock and unlock all doors 3 times by key
or wireless transmitter

*1

: INCORRECT

*2
Within 40
seconds

Open and close driver side door
*1
Lock and unlock driver side door lock
button 3 times

*1

*2
Open driver side door
2 seconds
System performs forced door lock once
(answer-back)

*1: Any door courtesy OFF to ON
*2: Any door lock UNLOCK to LOCK

E112668E02

TD–15

THEFT DETERRENT – THEFT DETERRENT SYSTEM

*1: Entry Delay Time
*2: Any door lock UNLOCK to LOCK
*3: Driver side door OPEN to CLOSE
*4: “Driver side door OPEN to CLOSE” is
performed once in the previous step

System performs forced door lock once
(answer-back)
*3, 4

*3

Unlock driver side door lock button

To active mode

To passive mode

Within 20
seconds Close and open driver side door twice

*2

Close and open 6 times or more
driver side door 3
to 5 times

3 times

Lock and unlock driver side door lock button *3, 4

5 times

Lock and unlock driver side door
lock button

0 sec.*1

2 seconds

4 times

14 sec.*1

30 sec.*1

System performs forced door lock once
(answer-back)

System performs forced door lock
once (answer-back)

ACTIVE MODE ON (PASSIVE MODE OFF)

PASSIVE MODE ON

E112669E02

TD

TD–16

THEFT DETERRENT – THEFT DETERRENT SYSTEM

5.

TD
6.

7.

FORCED DOOR LOCK CONTROL
(a) The forced door lock control also helps to prevent
the vehicle from being tampered with. When a door
is unlocked and the alarm starts, the door is forced
to lock by a forced door lock signal.
(1) Conditions that force the doors to lock:
• No key is in the key slot.
• 0.4 seconds have elapsed after the previous
output of a forced door lock signal.
• The theft deterrent system is in the alarm
sounding state of active arming mode.
• Any door is unlocked.
ALARM MEMORY FUNCTION
(a) If the alarm is set off (tampering is detected) while
the theft deterrent system is in the armed state, the
alarm memory function will record it. Whenever the
theft deterrent system is canceled, the alarm
memory function causes the taillights to illuminate
for 2 seconds in order to inform you that the alarm
has been set off.
(1) Conditions of the alarm memory function that
cause the taillights to illuminate:
When the theft deterrent system has entered
into the alarm sounding state (tampering has
been detected) even once, the taillights will
illuminate for 2 seconds if any of the following
conditions is fulfilled:
• Switched to the disarmed state from the
armed state during active arming mode.
• Switched to the disarmed state (1) from the
armed state during passive arming mode.
HINT:
For mode information about the active arming
mode, refer to "ACTIVE ARMING MODE". For
more information about the passive arming
mode, refer to "PASSIVE ARMING MODE".
PANIC ALARM CONTROL
(a) The panic alarm control activates the panic alarm
when the wireless transmitter PANIC switch is
pressed. The panic alarm control operates
independently from the theft deterrent system's
alarm control's change from the armed state to the
alarm sounding state.
(1) Conditions that cause the panic alarm control to
set off the panic alarm:
The panic alarm control sets off the panic alarm
when the PANIC switch on the wireless
transmitter is pressed for over 2.4 seconds
under the following conditions.
• The power switch is OFF or ON (ACC).
• The theft deterrent system is not in the alarm
sounding state (same for active arming mode
and passive arming mode).

TD–17

THEFT DETERRENT – THEFT DETERRENT SYSTEM

8.

• The panic alarm control is not operating (the
alarm is not set OFF).
(2) Conditions that cause the panic alarm control to
shut the alarm:
• Turn the power switch ON (IG).
• Any of the wireless transmitter switches are
pressed.
• 60 +- 5 seconds have pressed and the panic
alarm has ended.
• The theft deterrent system switches to the
alarm sounding state (same for active arming
mode and passive arming mode). However,
the alarm is still sounding, because the theft
deterrent system has switched to the alarm
sounding state. Conditions for canceling the
panic alarm are the same as for the alarm
control.
HINT:
For mode information about the active arming
mode, refer to "ACTIVE ARMING MODE". For
more information about the passive arming
mode, refer to "PASSIVE ARMING MODE".
SECURITY INDICATOR LIGHT OUTPUT
(a) The security indicator light turns on and off based
on output signals from the main body ECU.
However, in some cases the actual status of the
security indicator light is different from the output
signals of the main body ECU.

Output:
State of Theft Deterrent System*

Security Indicator Light
Output Signals from Main Body ECU

Actual Lighting Condition
OFF (immobiliser system is not set)
BLINKING (immobiliser system is set)

Disarmed state (1), (2)

OFF

Arming preparation state

ON

ON

Armed state

OFF

BLINKING

Alarm sounding state

ON

ON

Flashing cycle:
Time

Security Indicator Light

0.2 seconds

ON

1.8 seconds

OFF

HINT:
• *: Same for active arming mode and passive
arming mode.
• When the immobiliser system is set, the security
indicator blinks during the disarmed state and the
armed state due to the output signals from the
immobiliser system.

TD

TD–18

THEFT DETERRENT – THEFT DETERRENT SYSTEM

CUSTOMIZE PARAMETERS
HINT:
The following items can be customized.
NOTICE:
• When the customer requests a change in a function,
first make sure that customization of the function is
possible.
• Be sure to make a note of the current settings before
customizing.
• When troubleshooting a function, first make sure that
the function is set to the default setting.

TD
Theft deterrent system:
Display (Item)

Default

Contents

Setting

OFF

PASSIVE MODE is a function that
switches theft deterrent system
from arming preparation state to
armed state 30 seconds after key
is removed from key slot and all
doors is closed, even if doors are
not locked by wireless or door key
lock operation.
In PASSIVE MODE, theft
deterrent system will judge that a
theft is taking place and switch to
alarm sounding state if one of the
following operations are not
performed within 14 seconds (see
ENTRY DELAY below) after door
is opened:
• Unlock any door by key or
wireless operation
• Reconnect battery
• Insert key into key slot and
turn power switch ON (IG)

ON / OFF

ON

Function that allows vehicle horn
and theft deterrent horn to be
able to be used and a warning
device

ON / OFF

ENTRY DELAY (Entry delay time) 14 s

Function that changes entry delay
time (time before warning states)

0 s/14 s/ 30 s

WARN BY GLS SEN (Warning by
glass broken sensor)

Function that turns glass broken
sensor ON/OFF

ON / OFF

PASSIVE MODE (Passive arming
mode)

WARN BY HORN (Warning by
horn)

ON

THEFT DETERRENT – THEFT DETERRENT SYSTEM

TD–19

PROBLEM SYMPTOMS TABLE
HINT:
• Use the table below to help determine the cause of the
problem symptom. The potential causes of the symptoms
are listed in order of probability in the "Suspected area"
column of the table. Check each symptom by checking the
suspected areas in the order they are listed. Replace parts
as necessary.
• Inspect the fuses and relays related to this system before
inspecting the suspected areas below.
Theft deterrent system:
Symptom

Suspected area
1. Security indicator light circuit

Theft deterrent system cannot be set

See page
TD-36

2. ECU power source circuit

TD-40

3. Unlock warning switch circuit

DL-209

4. Door key and unlock switch

DL-8

5. Door courtesy switch circuit

LI-54

6. Back door courtesy switch circuit

LI-54

7. Engine hood courtesy switch circuit

TD-23

Security indicator light circuit

TD-36

1. Ignition switch circuit

TD-33

2. Unlock warning switch circuit

DL-204

Theft deterrent system can be set even when door is
open

Door courtesy switch circuit

TD-26

Horns (low pitched, high pitched) do not sound while
theft deterrent system is in warning operation

Horn circuit

TD-26

Headlights do not flash while theft deterrent system is
in warning operation

Headlight circuit

LI-38

Taillights do not flash while theft deterrent system is in
warning operation

Taillight circuit

LI-58

Hazard warning lights do not flash while theft deterrent
system is in warning operation

Warning light circuit

LI-69

Room light does not illuminate while theft deterrent
system is in warning operation

Room light circuit

LI-45

Security horn does not sounds while theft deterrent
system is in warning operation

Security horn circuit

TD-31

Headlights flash even when theft deterrent system is
not set

Headlight circuit

LI-38

Taillight flash even when theft deterrent system is not
set

Taillight circuit

LI-58

Hazard warning lights flash even when theft deterrent
system is not set

Hazard warning switch circuit

LI-69

Room light illuminates even when theft deterrent
system is not set

Room light circuit

LI-45

Security indicator light does not flash continuously
when power switch is changed from ON (IG) to OFF 10
times within 15 seconds
Alarm sounding state cannot be canceled even when
key is inserted into key slot, hybrid control system is
started and accelerator pedal is depressed for 10
seconds

TD

TD–20

THEFT DETERRENT – THEFT DETERRENT SYSTEM

TERMINALS OF ECU
1.

CHECK DRIVER SIDE JUNCTION BLOCK (MAIN
BODY ECU)

Vehicle Rear Side

Vehicle Front Side

TD
1D

B7

1A

B6

B5

1E

1B

1L

1D

1A

1
2
3
4
5
6
7

16
17
18
19
20
21
22

1
2
3
4
5
6
7
8

19
20
21
22
23
24
25
26

8
9
10
11

23
24
25
26

9
10
11
12

27
28
29
30

12
13
14
15

27
28
29
30

13
14
15
16
17
18

31
32
33
34
35
36

1B

1E

1
2
3
4
5
6
7
8

17
18
19
20
21
22
23
24

9
10
11
12

25
26
27
28

13
14
15
16

29
30
31
32

B5

B6

7 6 5 4 3 2 1
14 13 12 11 10 9 8
19 18 17
16 15

10 9 8 7 6 5

4

5

4

3

1L

2

1

17 16 15 14 13 12 11 10 9 8 7
26 25 24 23

1

16 15 14 13 12 11

B7

6

3 2

10 1112131415161718
1 2 3 4 5 6 7 8 9

22 21 20 19 18

1

B129460E01

(a) Disconnect the B6 ECU connector.

TD–21

THEFT DETERRENT – THEFT DETERRENT SYSTEM

(b) Disconnect the 1A, 1B, 1D and 1E junction block
connectors.
(c) Measure the resistance and voltage of wire harness
side connectors.
Symbols (Terminal No.)

Wiring Color

Terminal Description

Condition

Specified Condition

GND (1E-17) - Body
ground

W-B - Body ground

Ground

Always

Below 1 Ω

ECUB (1A-30) - Body
ground

R - Body ground

+B (ECUB) power supply

Always

10 to 14 V

ALTB (1B-1) - Body
ground

W - Body ground

+B (power system,
generator system) power
supply

Always

10 to 14 V

KSW (1E-36) - Body
ground

Y - Body ground

Key unlock warning switch
input

No key is in key slot

10 kΩ or higher

Key inserted

Below 1 Ω

Engine hood courtesy
switch

Engine hood closed

10 kΩ or higher

Engine hood open

Below 1 Ω

Driver side courtesy
switch input

Driver side door closed

10 kΩ or higher

HCTY (B6-5) - Body
ground
DCTY (1D-21) - Body
ground

P - Body ground

V - Body ground

Passenger side courtesy
switch input

Driver side door open

Below 1 Ω

Passenger side door
closed

10 kΩ or higher

Passenger side door open

Below 1 Ω

PCTY (1D-24) - Body
ground

BR - Body ground

RCTY (1D-5) - Body
ground

R - Body ground

Rear LH side courtesy
switch input

Rear LH side door closed

10 kΩ or higher

Rear LH side door open

Below 1 Ω

RCTY (1D-20) - Body
ground

R - Body ground

Rear RH side courtesy
switch input

Rear RH side door closed

10 kΩ or higher

Rear RH side door open

Below 1 Ω

BCTY (1D-7) - Body
ground

R - Body ground

Back door courtesy switch

Back door closed

10 kΩ or higher

Back door open

Below 1 Ω

If the result is not as specified, there may be a
malfunction on the wire harness side.
(d) Reconnect the B6 ECU connector.
(e) Reconnect the 1A, 1B, 1D and 1E junction block
connectors.
(f) Measure the voltage of the connectors.
Symbols (Terminal No.)

Wiring Color

Terminal Description

Condition

Specified Condition

SIND (B5-8) - Body
ground

R - Body ground

Security indicator light

Security indicator light
illuminates (illuminates for
30 sec. in alarm sounding
state and flashes when
immobiliser system is
operating)

SEC (B6-1) - Body ground

Y - Body ground

Security horn

Security horn is sounding
(theft deterrent system is
in alarm sounding state)

Pulse generation →
Below 1 V

HAZ (1L- 17) - Body
ground

Y - Body ground

Hazard light drive

Answer-back OFF →
Answer-back ON

Pulse generation

HORN (1A-28) - Body
ground

Y - Body ground

Vehicle horn (low pitched
and high pitched)

Vehicle horn is sounding
(theft deterrent system is
in alarm sounding state)

Pulse generation →
Below 1 V

TRLY (1D-29) - Body
ground

BR - Body ground

Taillights

Taillights are flashing (theft
deterrent system is in
alarm sounding state)

Pulse generation →
Below 1 V

HRLY (B7-20) - Body
ground

G - Body ground

Headlights

Headlights are flashing
(theft deterrent system is
in alarm sounding state)

Pulse generation →
Below 1 V

3 to 6 V

TD

TD–22

THEFT DETERRENT – THEFT DETERRENT SYSTEM

If the result is not as specified, the junction block
(body ECU) may have a malfunction.

TD

TD–23

THEFT DETERRENT – THEFT DETERRENT SYSTEM

DIAGNOSIS SYSTEM
1.

DESCRIPTION
(a) Theft deterrent system data and the Diagnostic
Trouble Codes (DTCs) can be read through the
vehicle's Data Link Connector 3 (DLC3). When the
system seems to be malfunctioning, use the
intelligent tester to check for malfunctions and
perform repairs.

2.

CHECK DLC3
(a) The vehicle uses the ISO 15765-4 communication
protocol. The terminal arrangement of the DLC3
complies with SAE J1962 and matches the ISO
15765-4 format.

CG SG CANH SIL

CANL

BAT
H100769E16

Symbols (Terminal No.)

Terminal Description

SIL (7) - SG (5)

Bus "+" line

CG (4) - Body ground

Chassis ground

SG (5) - Body ground

Signal ground

BAT (16) - Body ground

Battery positive

Condition
During transmission

Always

Below 1 Ω
11 to 14 V
54 to 69 Ω

CANH (6) - CANL (14)
CANH (6) - Battery positive

HIGH-level CAN bus line

CANH (6) - CG (4)

1 kΩ or higher
Power switch OFF

CANL (14) - Battery positive
CANL (14) - CG (4)

Specified Condition
Pulse generation

LOW-level CAN bus line

1 kΩ or higher
1 MΩ or higher
1 MΩ or higher

If the result is not as specified, the DLC3 may have
a malfunction. Repair or replace the harness and
connector.
HINT:
Connect the cable of the intelligent tester (with CAN
VIM) to the DLC3, turn the power switch ON (IG)
and attempt to use the tester. If the display indicates
the message UNABLE TO CONNECT TO
VEHICLE, there is a problem either with the vehicle
or with the tester.
• If communication is normal when the tester is
connected to another vehicle, inspect the DLC3
of the original vehicle.
• If communication is still not possible when the
tester is connected to another vehicle, the
problem is probably in the tester itself. Consult
the Service Department listed in the tester's
instruction manual.

Intelligent Tester

DLC3
CAN VIM
B126098E01

TD

TD–24

THEFT DETERRENT – THEFT DETERRENT SYSTEM

DATA LIST / ACTIVE TEST
1.

TD

READ DATA LIST
HINT:
Using the intelligent tester's DATA LIST allows switch,
sensor, actuator and other item values to be read without
removing any parts. Reading the DATA LIST early in
troubleshooting is one way to save time.
(a) Connect the intelligent tester (with CAN VIM) to the
DLC3.
(b) Turn the power switch ON (IG).
(c) Read the DATA LIST according to the display on the
tester.

Main body ECU:
Measurement Item / Display
(Range)

Normal Condition

KEY UNLK WRN SW

Key unlock warning switch signal
/ ON or OFF

ON: Key is in key slot
OFF: No key is in key slot

-

D DOR CTY SW

Driver door courtesy switch signal
/ ON or OFF

ON: Driver side door is open
OFF: Driver side door is closed

-

P DOR CTY SW

Passenger door courtesy switch
signal / ON or OFF

ON: Passenger side door is open
OFF: Passenger side door is
closed

-

RR DOR OPEN SW

Rear door courtesy switch signal /
ON or OFF

ON: Either rear right or left door is
open
OFF: Both rear right and left
doors are closed

-

B DOR OPEN SW

Back door open switch

ON: Back door is open
OFF: Back door is closed

-

RR LOCK POS SW

Rear door lock position switch
signal / ON or OFF

ON: Rear door lock is in unlock
position
OFF: Rear door lock is in lock
position

-

P LOCK POS SW

Passenger door lock position
switch signal / ON or OFF

ON: Passenger side door lock is
in unlock position
OFF: Passenger side door lock is
in lock position

-

D LOCK POS SW

Driver door lock position switch
signal / ON or OFF

ON: Driver side door is in unlock
position
OFF: Driver side door is in lock
position

-

HOOD COURTSY SW

Engine hood courtesy switch
signal / ON or OFF

ON: Engine hood is open
OFF: Engine hood is closed

-

IG SW

Power switch signal / ON or OFF

ON: Power switch is pushed
OFF: Power switch is not pushed

-

Item

2.

Diagnostic Note

PERFORM ACTIVE TEST
HINT:
Performing the intelligent tester's ACTIVE TEST allows
relay, VSV, actuator and other items to be operated
without removing any parts. Performing the ACTIVE
TEST early in troubleshooting is one way to save time.
The DATA LIST can be displayed during the ACTIVE
TEST.
(a) Connect the intelligent tester (with CAN VIM) to the
DLC3.
(b) Turn the power switch ON (IG).

TD–25

THEFT DETERRENT – THEFT DETERRENT SYSTEM

(c) Perform the ACTIVE TEST according to the display
on the tester.
Main body ECU:
Item
SECURITY INDIC

Test Detail

Diagnostic Note

Turn security indicator light ON / OFF

-

SECURITY HORN

Sound security horn ON / OFF

-

VEHICLE HORN

Sound vehicle horn ON / OFF

-

TD

TD–26

THEFT DETERRENT – THEFT DETERRENT SYSTEM

Engine Hood Courtesy Switch Circuit
DESCRIPTION
The engine hood courtesy switch is installed into the hood lock. This switch turns ON when the engine
hood is opened and turns OFF when the engine hood is closed.

WIRING DIAGRAM

TD
Main Body ECU
Engine Hood Courtesy Switch
HCTY

B126395E01

INSPECTION PROCEDURE

1

READ VALUE OF INTELLIGENT TESTER (ENGINE HOOD COURTESY SWITCH)
(a) Check the DATA LIST for proper functioning of the
engine hood courtesy switch.

Main body ECU:
Item
HOOD COURTESY SW

Measurement Item / Display
(Range)
Engine hood courtesy switch
signal / ON or OFF

Normal Condition
ON: Engine hood is open
OFF: Engine hood is closed

Diagnostic Note
-

OK:
On tester screen, item changes between ON and
OFF according to above chart.
OK
NG

REPLACE DRIVER SIDE JUNCTION BLOCK
ASSEMBLY (MAIN BODY ECU)

TD–27

THEFT DETERRENT – THEFT DETERRENT SYSTEM

2

INSPECT ENGINE HOOD COURTESY SWITCH
(a) Remove the courtesy switch from the hood lock.
(b) Measure the resistance of the switch.
Standard resistance

Not Pushed (ON)

Tester Connection

Pushed
(OFF)

1-2

2 1

NG
B117066E01

Condition

Specified Condition

Pushed (OFF)

10 kΩ or higher

Not pushed (ON)

Below 1 Ω

REPLACE ENGINE HOOD COURTESY
SWITCH

OK

3

CHECK WIRE HARNESS (ENGINE HOOD COURTESY SWITCH - BODY GROUND)
(a) Disconnect the E3 switch connector.
(b) Measure the resistance of the wire harness side
connector.
Standard resistance

Wire Harness Side

Tester Connection

E3

1

E3-2 - Body ground

2

NG
B126396E01

OK

Specified Condition
Below 1 Ω

REPAIR OR REPLACE HARNESS AND
CONNECTOR

TD

TD–28

THEFT DETERRENT – THEFT DETERRENT SYSTEM

4

CHECK WIRE HARNESS (MAIN BODY ECU - ENGINE HOOD COURTESY SWITCH)
(a) Disconnect the B6 ECU connector.
(b) Disconnect the E3 switch connector.
(c) Measure the resistance of the wire harness side
connectors.
Standard resistance

Wire Harness Side

Main Body ECU

TD
B6
HCTY

1

Tester Connection

Specified Condition

B6-5 (HCTY) - E3-1

Below 1 Ω

B6-5 (HCTY) or E3-1 - Body ground

10 kΩ or higher

4

2 3

NG

5 6 7 8 9 10
11 12 13 14 15 16

REPAIR OR REPLACE HARNESS AND
CONNECTOR

Engine Hood Courtesy Switch

E3

1

2

B126397E01

OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

TD–29

THEFT DETERRENT – THEFT DETERRENT SYSTEM

Horn Circuit
DESCRIPTION
When the theft deterrent system is switched from the armed state to the alarm sounding state, the main
body ECU turns on the HORN relay, causing the horns to sound at intervals of 0.4 seconds.

WIRING DIAGRAM

TD
Main Body ECU

from Horn Switch
HORN

HORN
HORN

P/I

MAIN

High Pitched Horn

Low Pitched
Horn

B126398E01

INSPECTION PROCEDURE

1

PERFORM ACTIVE TEST BY INTELLIGENT TESTER (VEHICLE HORN)
(a) Select the ACTIVE TEST, use the intelligent tester (with
CAN VIM) to generate a command, and then check the
vehicle horns operation.

Main body ECU:
Item
VEHICLE HORN

Tester Detail
Vehicle horns ON / sOFF

Diagnostic Note
-

TD–30

THEFT DETERRENT – THEFT DETERRENT SYSTEM

OK:
Vehicle horns sound and stop.
OK

REPLACE DRIVER SIDE JUNCTION BLOCK
ASSEMBLY (MAIN BODY ECU)

NG

2

CHECK HORN

TD

(a) Press the horn switch and check if the vehicle horns
sound.
OK:
Vehicle horns sound.
OK

REPLACE DRIVER SIDE JUNCTION BLOCK
ASSEMBLY (MAIN BODY ECU)

NG

3

INSPECT FUSE (HORN)
(a) Remove the HORN fuse from the engine room junction
block.
(b) Measure the resistance of the fuse.
Standard resistance:
Below 1 Ω
NG

REPLACE FUSE

OK

4

CHECK HORN (HORN BATTERY VOLTAGE)
(a) Disconnect the H9 and H10 horn connectors.
(b) Measure the voltage of the wire harness side
connectors.
Standard voltage

Wire Harness Side

H9

Tester Connection



H9-1 - Body ground

H10

H10-1 - Body ground

B126399E01

NG

OK

Condition
Horn switch pushed

REPLACE HORN

Specified Condition
10 to 14 V

TD–31

THEFT DETERRENT – THEFT DETERRENT SYSTEM

5

CHECK WIRE HARNESS (ENGINE ROOM JUNCTION BLOCK - BATTERY)
(a) Disconnect the 3M junction block connector.
(b) Measure the voltage of the wire harness side connector.
Standard voltage

Wire Harness Side

Tester Connection

1

3M

3M-1 - Body ground

NG

Specified Condition
10 to 14 V

REPAIR OR REPLACE HARNESS AND
CONNECTOR

B126400E01

OK

6

CHECK WIRE HARNESS (ENGINE ROOM JUNCTION BLOCK - HORN AND BODY
GROUND)
(a) Disconnect the 3A, 3K and 3J junction block connectors.
(b) Disconnect the H9 and H10 horn connectors.
(c) Measure the resistance of the wire harness side
connectors.
Standard resistance

Wire Harness Side
Engine Room Junction Block

1

3A

Tester Connection

Specified Condition

3A-1 - 3K-1
Below 1 Ω

3J-8 - H9-1
3J-8 - H10-1
3A-1 or 3K-1 - Body ground
3J-8 or H9-1 - Body ground
3J-8 or H10-1 - Body ground

Engine Room Junction Block

NG
3K
1

3J

2 3

4

5

6 7

8

Horn
H9


H10
B126662E01

OK

10 kΩ or higher

REPAIR OR REPLACE HARNESS AND
CONNECTOR

TD

TD–32

THEFT DETERRENT – THEFT DETERRENT SYSTEM

7

CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY (OPERATION)
(a) Reconnect the 1A junction block connector.
(b) Check that the horns sound.
OK

Wire Harness Side

Connection

1A

Junction block terminal 1A-28 and
Body ground connected

TD
2 3 4 5 6 7 8

9 10 11 12

13 14 15 16 17 18

19 20 21 22 2324 25 26

27 28 29 30

31 32 33 34 35 36

1

OK

Specified Condition
Horns sound
Horns do not sound

REPLACE DRIVER SIDE JUNCTION BLOCK
ASSEMBLY (MAIN BODY ECU)

B137725E01

NG

8

CHECK WIRE HARNESS (DRIVER SIDE JUNCTION BLOCK - ENGINE ROOM JUNCTION
BLOCK AND BODY GROUND)
(a) Disconnect the 1A and 3A junction block connectors.
(b) Measure the resistance of the wire harness side
connectors.
Standard resistance

Wire Harness Side

Tester Connection
1A-28 - 3J-7

Below 1 Ω

1A-28 or 3J-7 - Body ground

10 kΩ or higher

Driver Side Junction Block

1A

NG
2 3 4 5 6 7 8

9 10 11 12

13 14 15 16 17 18

19 20 21 22 2324 25 26

27 28 29 30

31 32 33 34 35 36

1

Engine Room Junction Block

3J

Specified Condition

1

2 3

4

5

6 7

8

B126665E01

REPAIR OR REPLACE HARNESS AND
CONNECTOR

THEFT DETERRENT – THEFT DETERRENT SYSTEM

TD–33

OK
REPLACE ENGINE ROOM RELAY BLOCK

TD

TD–34

THEFT DETERRENT – THEFT DETERRENT SYSTEM

Security Horn Circuit
DESCRIPTION
When the theft deterrent system is switched from the armed state to the alarm sounding state, the main
body ECU turns on the relay, causing the horns to sound at intervals of 0.4 seconds.

WIRING DIAGRAM

TD
Main Body ECU

SEC
Security Horn

B126393E01

INSPECTION PROCEDURE

1

PERFORM ACTIVE TEST BY INTELLIGENT TESTER (SECURITY HORN)
(a) Select the ACTIVE TEST, use the intelligent tester (with
CAN VIM) to generate a command, and then check the
security horn operation.

Main body ECU:
Item
SECURITY HORN

Tester Details

Diagnostic Note

Security horn ON/OFF

-

OK:
Security horn sounds and stops.
OK
NG

REPLACE DRIVER SIDE JUNCTION BLOCK
ASSEMBLY (MAIN BODY ECU)

TD–35

THEFT DETERRENT – THEFT DETERRENT SYSTEM

2

INSPECT SECURITY HORN
(a) Remove the security horn.
(b) Apply battery voltage to the horn and check operation of
the horn.
OK
Tester Connection
Battery positive (+) → Terminal 1
Battery positive (-) → Horn bracket

NG

Specified Condition
Horn sounds

REPLACE SECURITY HORN

B117055

OK

3

CHECK WIRE HARNESS (MAIN BODY ECU - SECURITY HORN)
(a) Disconnect the B6 ECU connector.
(b) Disconnect the T1 horn connector.
(c) Measure the resistance of the wire harness side
connectors.
Standard resistance

Wire Harness Side
Main Body ECU

Tester Connection

SEC
B6

1

2 3

4

Specified Condition

B6-1 (SH-) - T1-1

Below 1 Ω

B6-1 (SH-) or T1-1 - Body ground

10 kΩ or higher

5 6 7 8 9 10
11 12 13 14 15 16

NG

REPAIR OR REPLACE HARNESS AND
CONNECTOR

Security Horn
T1



B126394E01

OK
REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY (MAIN BODY ECU)

TD

TD–36

THEFT DETERRENT – THEFT DETERRENT SYSTEM

Ignition Switch Circuit
DESCRIPTION
When turning the power switch ON (IG), battery positive voltage is applied to terminal SIG of the main
body ECU.

WIRING DIAGRAM

TD
Main Body ECU

IG1

ECU-IG

SIG

DC/DC
to Power Source Control ECU

MAIN

B126384E01

INSPECTION PROCEDURE

1

INSPECT FUSE (ECU-IG)
(a) Remove the ECU-IG fuse from the driver side junction
block.
(b) Measure the resistance of the fuse.
Standard resistance:
Below 1 Ω
NG

REPLACE FUSE

TD–37

THEFT DETERRENT – THEFT DETERRENT SYSTEM

OK

2

INSPECT IG1 RELAY
(a) Remove the IG1 relay from the driver side junction block.
(b) Measure the resistance of the relay.
Standard resistance
Tester Connection

Specified Condition
10 kΩ or higher
Below 1 Ω (when battery voltage is
applied to terminals 1 and 2)

3-5

NG
A092673E27

REPLACE IG1 RELAY

OK

3

CHECK WIRE HARNESS (DRIVER SIDE JUNCTION BLOCK - BATTERY)
(a) Disconnect the 1B junction block connector.
(b) Measure the voltage of the wire harness side connector.
Standard voltage

Wire Harness Side

Tester Connection
1B-1 - Body ground

1B

1

NG

Specified Condition
10 to 14 V

REPAIR OR REPLACE HARNESS AND
CONNECTOR

B126385E01

OK

4

CHECK WIRE HARNESS (DRIVER SIDE JUNCTION BLOCK - BODY GROUND)
(a) Disconnect the 1E junction block connector.
(b) Measure the resistance of the wire harness side
connector.
Standard resistance

Wire Harness Side
1E

Tester Connection
2 3 4 5 6 7 8

9 10 11 12

13 14 15 16

17 18 19 20 2122 23 24

25 26 27 28

29 30 31 32

1

1E-17 - Body ground

NG
B126387E01

OK

Specified Condition
Below 1 Ω

REPAIR OR REPLACE HARNESS AND
CONNECTOR

TD

TD–38

THEFT DETERRENT – THEFT DETERRENT SYSTEM

5

CHECK POWER SOURCE CONTROL ECU (IG1D VOLTAGE)
(a) Disconnect the 1J junction block connector.
(b) Measure the voltage of the wire harness side connector.
Standard voltage

Wire Harness Side

Tester Connection

1J

TD

1
2 3
4 5 6 7 8

1J-3 - Body ground

OK
B126388E01

Condition

Specified Condition

Power switch OFF

Below 1 V

Power switch ON (IG)

10 to 14 V

PROCEED TO NEXT CIRCUIT INSPECTION
SHOWN IN PROBLEM SYMPTOMS TABLE

NG

6

CHECK WIRE HARNESS (DRIVER SIDE JUNCTION BLOCK - POWER SOURCE CONTROL
ECU AND BODY GROUND)
(a) Disconnect the 1J junction block connector.
(b) Disconnect the P6 ECU connector.
(c) Measure the resistance of the wire harness side
connectors.
Standard resistance

Wire Harness Side

Driver Side Junction Block

Tester Connection

1J

1
2 3
4 5 6 7 8

Below 1 Ω

1J-3 or P6-34 (IG1D) - Body ground

10 kΩ or higher

NG

Power Source Control ECU
P6

1 2 3 4 5 6 7 8 9

Specified Condition

1J-3 - P6-34 (IG1D)

10 11 12 13 14 15 16 17

18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

IG1D

B126389E01

OK
GO TO SMART KEY SYSTEM (for Starting)

REPAIR OR REPLACE HARNESS AND
CONNECTOR

THEFT DETERRENT – THEFT DETERRENT SYSTEM

TD–39

Security Indicator Light Circuit
DESCRIPTION
When the theft deterrent system is in the disarmed state, the security indicator light will flash continuously
if the immobiliser system is set, or not illuminate if the immobiliser system is not set.
When the theft deterrent system is in the armed state, the immobiliser system is automatically set and the
security indicator light will flash continuously.
When the theft deterrent system is in the arming preparation state and alarm sounding state, the main
body ECU causes the security indicator light to be illuminated.

WIRING DIAGRAM

Main Body ECU

Combination Meter
Security Indicator Light

Joining Connector
SIND

Joining Connector

B126390E01

TD

TD–40

THEFT DETERRENT – THEFT DETERRENT SYSTEM

INSPECTION PROCEDURE

1

PERFORM ACTIVE TEST BY INTELLIGENT TESTER (SECURITY INDICATOR LIGHT)
(a) Select the ACTIVE TEST, use the intelligent tester (with
CAN VIM) to generate a command, and then check the
security indicator light operation.

Main body ECU:

TD

Item
SECURITY INDIC

Tester Detail

Diagnostic Note

Security indicator light ON/OFF

-

OK:
Security indicator light turns on and off.
OK

INSPECT COMBINATION METER ECU
(SECURITY INDICATOR LIGHT)

NG

2

CHECK WIRE HARNESS (JOINING CONNECTOR - MAIN BODY ECU)
(a) Disconnect the IG1 joining connector.
(b) Measure the resistance of the wire harness side
connector.
Standard resistance

Wire Harness Side

Tester Connection

IG1

11 10 9 8 7 6 5 4 3 2 1

IG1-4 - Body ground

Specified Condition
Below 1 Ω

22 21 20 19 18 17 16 15 14 13 12

NG
B126391E01

OK

REPAIR OR REPLACE HARNESS AND
CONNECTOR

TD–41

THEFT DETERRENT – THEFT DETERRENT SYSTEM

3

CHECK WIRE HARNESS (MAIN BODY ECU - JOINING CONNECTOR)
(a) Disconnect the B5 ECU connector.
(b) Disconnect the IG1 joining connector.
(c) Measure the resistance of the wire harness side
connectors.
Standard resistance

Wire Harness Side

Main Body ECU

B5

1 2 3 4 5 6 7

SIND

15 16

Tester Connection
B5-8 (SIND) - IG1-1

Below 1 Ω

B5-8 (SIND) or IG1-1 - Body ground

10 kΩ or higher

NG

8 9 10 11 12 13 14

Specified Condition

17 18 19

REPAIR OR REPLACE HARNESS AND
CONNECTOR

Joining Connector

IG1

11 10 9 8 7 6 5 4 3 2 1
22 21 20 19 18 17 16 15 14 13 12

B126392E01

OK

4

INSPECT COMBINATION METER ECU (SECURITY INDICATOR LIGHT)
(a) Disconnect the IG1 joining connector.
(b) Apply 12 V positive voltage to the terminals of the
combination meter.
(c) Check that the security indicator light illuminates.
OK

Wire Harness Side

Tester Connection
Body positive (+) → Terminal 1
Body negative (-) → Terminal 4

IG1

1 2 3 4 5 6 7 8 9 10 11
12 13 14 15 16 17 18 19 20 21 22

B139476E01

Specified Condition
Illuminates

NOTICE:
• If the positive (+) lead and the negative (-) lead are
incorrectly connected, the security indicator light
will not illuminate.
• Applying a voltage of more than 12 V will damage
the security indicator light.
• If the voltage is too low, the security indicator will
not illuminate.
NG

GO TO METER / GAUGE SYSTEM

TD

TD–42

THEFT DETERRENT – THEFT DETERRENT SYSTEM

OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

TD

TD–43

THEFT DETERRENT – THEFT DETERRENT SYSTEM

ECU Power Source Circuit
DESCRIPTION
This circuit provides power to operate the main body ECU.

WIRING DIAGRAM

TD
Main Body ECU

DOME
ECUB

MAIN
GND

B126382E01

INSPECTION PROCEDURE

1

INSPECT FUSE (DOME)
(a) Remove the DOME fuse from the engine room junction
block and relay block.
(b) Measure the resistance of the fuse.
Standard resistance:
Below 1 Ω
NG

REPLACE FUSE

TD–44

THEFT DETERRENT – THEFT DETERRENT SYSTEM

OK

2

CHECK WIRE HARNESS (DRIVER SIDE JUNCTION BLOCK - BATTERY AND BODY
GROUND)
(a) Disconnect the 1A and 1E junction block connectors.

Wire Harness Side

TD
Driver Side Junction Block

1A

2 3 4 5 6 7 8

9 10 11 12

13 14 15 16 17 18

19 20 21 22 2324 25 26

27 28 29 30

31 32 33 34 35 36

1

Driver Side Junction Block

1E

ECUB

2 3 4 5 6 7 8

9 10 11 12

13 14 15 16

17 18 19 20 2122 23 24

25 26 27 28

29 30 31 32

1

GND

B126383E01

(b) Measure the resistance and voltage of the wire harness
side connectors.
Standard resistance
Tester Connection
1E-17 (GND) - Body ground

Specified Condition
Below 1 Ω

Standard voltage
Tester Connection
1A-30 (ECUB) - Body ground

NG

Specified Condition
10 to 14 V

REPAIR OR REPLACE HARNESS AND
CONNECTOR

OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

TD–42

THEFT DETERRENT – ENGINE HOOD COURTESY SWITCH

ENGINE HOOD COURTESY
SWITCH

Not Pushed (ON)

Pushed
(OFF)

TD

INSPECTION
2 1

1.

B117066E01

INSPECT ENGINE HOOD COURTESY SWITCH
(a) Measure the resistance of the switch.
Standard resistance
Tester Connection

1-2

Switch Condition

Specified Condition

Pushed (OFF)

10 kΩ or higher

Not pushed (ON)

Below 1 Ω

If the result is not as specified, replace the switch.

TD–43

THEFT DETERRENT – SECURITY HORN ASSEMBLY

SECURITY HORN ASSEMBLY
INSPECTION
1.

INSPECT SECURITY HORN ASSEMBLY
(a) Apply battery voltage to the horn and check the
operation of the horn.
OK
Measurement Condition

B117055

Battery positive (+) → Terminal 1
Battery negative (-) → Horn bracket

Specified Condition
Horn sounds

If the result is not as specified, replace the horn
assembly.

TD