1999 TOYOTA CAMRY door lock

I08428
E/G Room J/B No.2
Theft Deterrent ECU Headlight
Control Realy
FL MAIN
Battery 3
2BMAIN
HEAD R±B B
3 4
1
28
2K
32G
1
F61
F4Light Control Switch
(COMB. SW)
*1
Daytime Running
Light Relay*2
Daytime Running
Light Relay7
IG310
T3 R±B
*1
R±B*2R*2
19J32
*1
J6*2
J/C
*1: w/o Daytime Running Light
*2: w/ Daytime Running Light2BB
FL BLOCK
B±GR±B
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI±847
1082 Author: Date:
Headlight Control Relay Circuit
CIRCUIT DESCRIPTION
When the theft deterrent system is activated, it causes the Tr in the ECU to switch ON and OFF at approxi-
mately 0.4 sec. intervals. This switches the headlight control relay ON and OFF, thus flashing the headlights
(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 headlight
control relay switches OFF, thus stopping the headlights flashing:
(1) Unlock the front LH or RH door with key.
(2) Turn the ignition switch to ACC or ON position.
(3) Unlock the doors with the wireless door lock control system.
(4) Wait for approximately 60 seconds.
(5) Push the panic switch of the wireless door lock control system.
WIRING DIAGRAM
DI06X±06

I00266
Theft Deterrent ECU
TAIL
T3
11
G±R
B BJ/C J33
G±R
10
IG1
G±RA
AJ2
J/C
G±R 1C
6
2
3
Taillight Control Relay
1
5
TAIL81S
1C
9
1B
4 Instrument Panel J/B
B±R
Light
Failure
Sensor
Turn & Clearance
Light
1F9
F4
1
FL
BLOCK
FL MAIN
Battery
B±G ALT
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI±849
1084 Author: Date:
Taillight Control Relay Circuit
CIRCUIT DESCRIPTION
When the theft deterrent system is activated, it causes the Tr in the ECU to switch ON and OFF at approxi-
mately 0.4 sec. intervals. This switches the taillight control relay ON and OFF, thus flashing the taillights (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 taillight control
relay switches OFF, thus stopping the taillights flashing:
(1) Unlock the front LH or RH door with key.
(2) Turn the ignition switch to ACC or ON position.
(3) Unlock the doors with the wireless door lock control system.
(4) Wait for approximately 60 seconds.
(5) Push the panic switch of the wireless door lock control system.
WIRING DIAGRAM
DI06Y±06

I01927
Theft Deterrent ECU
T4
13
IG B±R B
J17
C
J16B±R Instrument Panel J/B
8
1
ECU±IG
1
1B AM1
2
1K
4 B±Y AM1
2Ignition Switch
W
B±R
B±R 1
F9 ALT
FL BLOCK
F4
1
B±G
FL MAIN
Battery
1D
1K
IG1
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI±851
1086 Author: Date:
Ignition Switch Circuit
CIRCUIT DESCRIPTION
When the ignition switch is turned to the ACC position, battery positive voltage is applied to the terminal ACC
of the ECU. Also, if the ignition switch is turned to the ON position, battery positive voltage is applied to the
terminals ACC and IG of the ECU. When the battery positive voltage is applied to the terminal ACC of the
ECU while the theft deterrent system is activated, the warning stops. Furthermore, power supplied from the
terminals ACC and IG of the ECU is used as power for the door courtesy switch, and position switch, etc.
WIRING DIAGRAM
DI06Z±06

I00252
Theft Deterrent ECU
LUG 7
T4G±W C CJ33
J/C
G±W 2IF1G±W 2 1 Luggage Compartment
Door Key Lock and
Unlock Switch
BP
W±B
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI±855
1090 Author: Date:
Luggage Compartment Door Key Lock and Unlock Switch Circuit
CIRCUIT DESCRIPTION
The luggage compartment door key lock and unlock switch goes ON when the luggage compartment door
key cylinder is turned to the unlock side with the key.
WIRING DIAGRAM
DI071±04

AB0119
I00271I00277
ON
1
(+) (±)
I00270
21
DI±856
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
1091 Author: Date:
INSPECTION PROCEDURE
1 Check voltage between terminal 1 of luggage compartment door key lock and
unlock switch connector and body ground.
PREPARATION:
(a) Remove luggage compartment door trim.
(b) Turn ignition switch ON.
CHECK:
Measure voltage between terminal 1 of luggage compartment
door key lock and unlock switch connector and body ground,
when the key is turned to the unlock side and not turned respec-
tively.
OK:
Key operationVoltage
Turned to the unlock side0 V
Not turnedBattery positive voltage
OK Check and replace theft deterrent ECU.*1
NG
2 Check luggage compartment door key lock and unlock switch.
PREPARATION:
Disconnect luggage compartment door key lock and unlock
switch connector.
CHECK:
Check continuity between terminals 1 and 2, when the key is
turned to the unlock side and not turned respectively.
OK:
Key operationTester connectionSpecified condition
Turned to unlock1 ± 2Continuity
Not turned±No continuity
NG Repair or replace luggage compartment door
key lock and unlock switch.
OK

I08430
Door Key Lock and
Unlock Switch RH Instrument Panel J/BTheft Deterrent ECU
B9
UL3 J6
J/C Door Key Lock and
Unlock Switch LH
L2 T4
8
T4
UL2 10
T4 B 3
IE1
L±W UNLOCK
R±G R±G R±G
4
IE1
L±WL±W BB 3
2
LOCK J38
J/C
AA1
W±B
*1
IE W±BW±B
*1
20
IE1
7
1G3
1V
W±B
J37
J/C
L±W L±W4
IM1
3
IM1B 2
3AA
L L
L LOCK
UNLOCK
IJ20
IM1J39
J/C
AA1
W±B
*1W±B*1
W±B*2
W±B*2*1: TMC Made
*2: TMMK Made W±B DI±860
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
1095 Author: Date:
Door Key Lock and Unlock Switch Circuit
CIRCUIT DESCRIPTION
The door key lock and unlock switch is built in the door key cylinder. When the key is turned to the lock side,
terminal 1 of the switch is grounded and when the key is turned to the unlock side, terminal 2 of the switch
is grounded.
WIRING DIAGRAM
DI073±06

I00272
1
2
3
(±) (+)
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI±861
1096 Author: Date:
INSPECTION PROCEDURE
1 Check door key lock and unlock switch.
PREPARATION:
(a) Remove the door trim and service hole cover.
(b) Disconnect the door key lock and unlock switch connec-
tor.
CHECK:
Check continuity between terminals 1, 2 and 3 of door key lock
and unlock switch connector, when each of door key lock and
unlock switch is turned to the lock side, unlock side and not
turned.
OK:
Switch positionTester connectionSpecified condition
Lock side2 ± 3Continuity
Unlock side1 ± 3Continuity
OFF±No continuity
NG Replace door key lock and unlock switch.
OK
2 Check harness and connectors between ECU and switch, switch and body
ground (See page IN±31).
NG Repair or replace harness or connector.
OK
Check and replace theft deterrent ECU.*1
*1: When there is a malfunction that the theft deterrent system
cannot be set, proceed to the next numbered circuit inspection
shown on problem symptoms table (See page DI±837).

I08431
Theft Deterrent ECU
14
T4 Instrument Panel J/B
Door Unlock Detection
Switch Front LHJ6
J/C
L±RLSWD
LSWP
LSWR 15
T4
16
T4 L±R L±R11
IE1F F
W±B*1
IE
4
*1
1*21*1
4*2
J10E 4 1
W±B*1
J38
J/C
A A 20
IE1
W 7
1G 3
1V
W±B
W±B
*2
J37
J/C
C C
Y Y Y11
IM1 Door Unlock Detection
Switch Front RH
W±B
*1W±B*1
J39
J/C
A A
W±B
*2
20
IM1
W±B
IJ
L±Y J10EJ/C
L±Y
L±Y
L±Y
2
IF2 4
BO1 41 Door Unlock Detection
Switch Rear LH
Door Unlock Detection
Switch Rear RH W±B W±B6
BO1 A J40
J/C
BL
BN
IK
J9DL±Y L±Y
L±YW±B W±B
W±B W±B3
IN2 4
BP1 41 6
BP1
*1: TMC Made
*2: TMMK Made DI±862
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
1097 Author: Date:
Door Unlock Detection Switch Circuit
CIRCUIT DESCRIPTION
The door unlock detection switch is built in the door lock motor assembly. This switch is ON when the door
lock knob is in the unlock position and OFF when the lock knob is in the lock position. The ECU detects the
door lock knob conditions in this circuit. It is used as one of the operating conditions for the key confinement
prevention function.
WIRING DIAGRAM
DI074±06