Page 729 of 2543

Terminals Symbols Condition Standard Value
T9±12±Ground
(IND±Ground)
W±L±Ground
Always
Below 270
T9±14±T8±4
VR WB
Engine hood courtesy switch ON (hood opened). Below 1
T9 14 T8 4
(FOD±E)
VR±WB
Engine hood courtesy switch OFF (hood closed).
1 M or higher
T9±15±T8±4 LW W B Door unlock detection switch ON (door opened). Below 1
T9 15 T8 4
(LSWD±E) LW±WB Door unlock detection switch OFF (door closed). 1 M or higher
T9 15 T8 4
Door key lock and unlock switch ºunlockº position Below 1
T9±15±T8±4
(UL2±E)
W±WB
Door key lock and unlock switch OFF or ºlockº
position
1 M or higher
Door open detection switch (passenger's) ON
Below 1
T9±19±T8±4
RL WB
Door oen detection switch ( assenger s) ON
(door opened).
Below 1
T9 19 T8 4
(DSWP±E)
RL±WB
Door open detection switch (passenger's) OFF 1Mor higher
Door oen detection switch ( assenger s) OFF
(door closed).
1 M or higher
T9±20±T8±4
YWB
Key unlock warning switch ON. Below 1
T9 20 T8 4
(KSW±E) Y±WB Key unlock warning switch OFF. 1 M or higher
T9±21±T8±4
GB WB
Door unlock detection switch ON (door opened). Below 1
T9 21 T8 4
(LSWP±E)
GB±WB
Door unlock detection switch OFF (door closed).
1 M or higher
T9 22 T8 4
Door key lock and unlock switch ºlockº position. Below 1
T9±22±T8±4
(L2±E)
GY±WB
Door key lock and unlock switch OFF or ºunlockº
position.
1 M or higher
T9±23±T8±4
(TAIL±E)
GW±WB
Light control switch ºTAILº position.
10±14 V
T9±24±T8±4
(HORN±E)
LR±WB
Horn switch OFF.
10±14 V
T9±25±Ground
(SRLY±Ground)
L±O±Ground
Ignition switch is turned to ºSTº position.
(When park / neutral position switch ºPº position)
10±14 V
± BODY ELECTRICAL SYSTEMBE±127THEFT DETERRENT AND DOOR LOCK CONTROL SYSTEM
Page 730 of 2543
CIRCUIT INSPECTION
Indicator Light Circuit
CIRCUIT DESCRIPTION
When the theft deterrent system is preparing to set, this circuit lights up the indicator light. When the system
has been set, it continually turns the indicator light on for 1 second and turns it off for 1 second, thus blink-
ing the indicator light.
BE±128± BODY ELECTRICAL SYSTEMTHEFT DETERRENT AND DOOR LOCK CONTROL SYSTEM
Page 731 of 2543
INSPECTION PROCEDURE
(See page BE±123).
Check harness and connector between theft deterrent and door lock ECU
and indicator light, indicator light and body ground (See page IN±30).
(2) Remove instrument panel cluster finish panel.
(3) Disconnect telltale light RH connector.
Connect positive (+) lead to terminal 10 and neg-
ative (±) lead to terminal 9 of indicator light con-
nector.
Indicator light comes on.
Replace telltale light RH.
Repair or replace harness or connector.
Check and replace theft deterrent and door
lock ECU. *1*1: When there is a malfunction that the theft de-
terrent system cannot be set, proceed to the
next numbered circuit inspection shown on
matrix chart (See page BE±123).
Check indicator light
± BODY ELECTRICAL SYSTEMBE±129THEFT DETERRENT AND DOOR LOCK CONTROL SYSTEM
Page 732 of 2543
Starter Relay Circuit
CIRCUIT DESCRIPTION
When the theft deterrent system is activated, contact (a) in the ECU becomes open, creating an open circuit
in terminal ST circuit and making the starter inoperative (starter cut).
In this condition, if one of the following operations is done, the contact (a) in the ECU is grounded, thus can-
celling the starter cut:
(1) The front LH and RH door is unlocked with a key. BE±130
± BODY ELECTRICAL SYSTEM
THEFT DETERRENT AND DOOR LOCK CONTROL SYSTEM
Page 733 of 2543
INSPECTION PROCEDURE
HINT: This troubleshooting is based on the premise that engine cranking occurs.
If the engine does not crank, proceed to engine troubleshooting on page EG±381 or 487 (Vol. 1).
(See page IN±30).
(1)Remove instrument panel panel.
(See BO section.)
(2)Disconnect the ECU connector.
Measure voltage between terminal SRLY of theft
deterrent ECU connector and body ground when
ignition switch is turned on.
Voltage: 10 ± 14 V
Check and replace theft deterrent ECU.
Check voltage between terminal SRLY of theft deterrent and door lock
ECU connector and body ground.
Check and repair harness and connector between starter and theft deterrent and door lock ECU
± BODY ELECTRICAL SYSTEMTHEFT DETERRENT AND DOOR LOCK CONTROL SYSTEMBE±131
Page 734 of 2543
Horn Relay Circuit
CIRCUIT DESCRIPTION
When the theft deterrent system is activated, it causes the Tr in the ECU to switch on and off in approximately
0.2 sec. cycles. This switches the horn relay on and off, thus the horns blow (See the wiring diagram below).
In this condition, if any of the following operations is done, the Tr in the ECU goes off and the horn relay switches
off, thus stopping the horns from blowing:
(1) The front LH or RH door is unlocked with a key.
(2) The ignition switch is turned to ACC or ON position.
(3) Approximately 1 minute elapses.
BE±132± BODY ELECTRICAL SYSTEMTHEFT DETERRENT AND DOOR LOCK CONTROL SYSTEM
Page 735 of 2543
INSPECTION PROCEDURE
(See page IN±30).
Check and repair harness and connector between theft deterrent and door lock ECU and horn
relay (See page IN±30).
(1) Remove instrument panel.
(See BO section)
(2) Disconnect the ECU connector.
Voltage: 10 ± 14 V
Replace telltale light RH.
Check and replace theft deterrent and door lock
ECU.
Check voltage between terminal HORN of theft deterrent and door lock
ECU connector and body ground.
Measure voltage between terminal HORN of theft
deterrent ECU connector and body ground.
± BODY ELECTRICAL SYSTEMBE±133THEFT DETERRENT AND DOOR LOCK CONTROL SYSTEM
Page 736 of 2543
Theft Deterrent Horn Circuit
CIRCUIT DESCRIPTION
When the theft deterrent system is activated, contact (a) and contact (b) in the ECU close alternately in cycles
of approximately 0.2 sec., causing the theft deterrent horn to blow (See the wiring diagram below).
In this condition, if any of the following operations is done, the contact (a) in the ECU opens, thus stopping the
theft deterrent horn from blowing:
(1) The front LH or RH door is unlocked with a key.
(2) The ignition switch is turned to ACC or ON position.
(3) Approximately 1 minute elapses.
BE±134± BODY ELECTRICAL SYSTEM
THEFT DETERRENT AND DOOR LOCK CONTROL SYSTEM