1999 TOYOTA CAMRY warning

TURN SIGNAL AND HAZARD WARNING LIGHT
1L 22K3
2 3
2 3
IF EB BMIE EB1 1 37956 231
5 5
A 66
A
A10 8
2
1FROM POWER SOURCE SYSTEM (
SEE PAGE 44)
OFF
ONRH
LH TURN HAZARD10A
HAZARD 7. 5A
TURN
G± R
W
G±RG± B
G±W
G± Y W±B
G±B
G±Y
W±BG±B
G±Y
W±BW± B W±B
HAZARD SWTURN SIGNA L SW
[COMB. SW]
REAR TURN SIGNAL LIGHT LH
[REAR COMB. LIGHT LH]FRONT TURN SI GNAL
LIGHT LH
REAR TURN SIGNAL LIGHT RH
[REAR COMB. LIGHT RH]
G± B
G± Y
TURN SIGNAL
FLASHER
FRONT TURN SI GNAL
LIGHT RH F 1
R 8
R10
F 2
J 4
J 9
H 5
JUNCTION
CONNECTOR
JUNCTION
CONNECTOR
LH RH
G± B G±B
G± B
G±Y W±B
E 2B 6
W± B W± B
W± B
B 1C1
B 161C 10 1A 5 1V 8
1H 6 1H 8 1A 2 1S 11 1S6
B BA B
G±BG± Y
CDD C
D
CJUNCTION
CONNECTOR J15 T 2C15
JUNCTION
CONNECTOR
TURN SIGNAL INDICATOR
LI GHT [COMB. METER]
G±Y G±B
G±Y
G±B
C C11 B , C12B J25 A , J26

Current is applied at all times through the STOP fuse to TERMINAL 2 of the stop light SW.
When the ignition SW is turned on, current flows from the GAUGE fuse to TERMINAL 8 of the light failure sensor, and also
flows through the rear lights warning light to TERMINAL 4 of the light failure sensor.
STOP LIGHT DISCONNECTION WARNING
When the ignition SW is turned on and the brake pedal is pressed (Stop light SW on), if the stop light circuit is open, the
current flowing from TERMINAL 7 of the light failure sensor to TERMINAL 2 and 1 changes, so the light failure sensor
detects the disconnection and the warning circuit of the light failure sensor is activated.
As a result, the current flows from TERMINAL 4 of the light failure sensor to TERMINAL 11 to GROUND and turns the rear
lights warning light on. By pressing the brake pedal, the current flowing to TERMINAL 8 of the light failure sensor keeps the
warning circuit on holding and the warning light on until the ignition SW is turned off.
S4 STOP LIGHT SW
2±1 : Closed with the brake pedal depressed
L3 LIGHT FAILURE SENSOR
7±GROUND : Approx. 12 volts with the stop light SW on
4, 8±GROUND : Approx. 12 volts with the ignition SW at ON or ST position
11±GROUND : Always continuity
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
C10A30J331R833
C12C30J3432R1033
H832L332S431
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1C22Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1D22Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
1R22Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1S22Floor Wire and Instrument Panel J/B (Lower Finish Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IC236Floor Wire and Instrument Panel Wire (Left Kick Panel)
: GROUND POINTS
CodeSee PageGround Points Location
BK40Under the Left Center Pillar
BM40Back Panel Center
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
B340Floor WireB640Floor Wire
SYSTEM OUTLINE
SERVICE HINTS

TAILLIGHT
When the light control SW is turned to TAIL or HEAD position. The current flows to TERMINAL 3 of the light failure sensor
through the TAIL fuse.
When the ignition SW is turned on, the current flows from the GAUGE fuse to TERMINAL 8 of the light failure sensor, and
also flows through the rear lights warning light to TERMINAL 4 of the light failure sensor.
TAILLIGHT DISCONNECTION WARNING
With the ignition SW on and the light control SW turned to TAIL or HEAD position, if the taillight circuit is open, the light failure
sensor detects the failure by the change in current flowing from TERMINAL 3 of the light failure sensor to TERMINAL 9, and
the warning circuit of the light failure sensor is activated.
As a result, the current flows from TERMINAL 4 of the light failure sensor to TERMINAL 11 to GROUND and turns the rear
lights warning light on, which remains on until the light control SW is turned off
TAILLIGHT RELAY
5±3 : Closed with the light control SW at TAIL or HEAD position
L3 LIGHT FAILURE SENSOR
4, 8±GROUND : Approx. 12 volts with the ignition SW at ON or ST position
3±GROUND : Approx. 12 volts with the light control SW at TAIL or HEAD position
11±GROUND : Always continuity
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
C10A30J131L132
C12C30J331L232
C1530J631L332
F128J931R733
F228J1231R833
F9A28J25A31R933
F14F28J26B31R1033
I1130J3432
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1B22Cowl Wire and Instrument Panel J/B (Lower Finish Panel)1C22Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1D22Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
1J22Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1S22Floor Wire and Instrument Panel J/B (Lower Finish Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IC236Floor Wire and Instrument Panel Wire (Left Kick Panel)
: GROUND POINTS
CodeSee PageGround Points Location
EB34Left Radiator Side Support
IF36Instrument Panel Brace LH
BK40Under the Left Center Pillar
BM40Back Panel Center
SYSTEM OUTLINE
SERVICE HINTS

DOOR LOCK CONTROL
A
IFID II 230A
POWER25A
DOOR FROM POWER SOURCE SYSTEM (
SEE PAGE 44)
1D 1
32 51
ID1 13 ID112 ID14ID13IL14IL13IL113 IL112 ID23ID28ID111
ID1 20
IL1 20 1G 12 1J71G5
1G7
1V3
UNLOCK LOCK
4 27
UNLOCK LOCK
1 23
UNLOCK LOCK
1 23
UNLOCK LOCK
3 65
M A 13 A 12A A
A 1A2A3A4A5A 9 B C
A A1 A B B D
EF D
EBBA
AA
AA
AF D
EB
AA W±BL±R
L±B
W±B
W± B W± B LG
L±W
R±G
W±B
W± B
W±B W±B W±B
W± B L± RL±B L±RG LGL L±W R±G L±WG LG W± B
LG
GLG
G
L±W
R±G
L
LG
G L L±W
L±R L±R
L±R W±B W±B
L±WR±B
L±W L
W±B
4 3 2
TO POWER WINDOW
MASTER SWPOWER
RELAY
JUNCTION
CONNECTOR
I12
INTEGRATION RELAY
JUNCTION
CONNECTOR JUNCTION
CONNECTOR J 5
J27 JUNCTION
CONNECTOR J27JUNCTION
CONNECTOR J 5
JUNCTION
CONNECTOR J 5
JUNCTION
CONNE CTORJUNCTION
CONNECTOR
JUNCTION
CONNECTOR J 9J33J35
DOOR LOCK MOTOR AND
DOOR UNLOCK DETECTION
SW FRONT LHDOOR LOCK CONTROL
SW RH DOOR KEY LOCK AND
UNLOCK SW FRONT RH DOOR KEY LOCK AND
UNLOCK SW FRONT LH DOOR LOCK CONTROL SW LH
[POWER WINDOW MASTER SW] P 8
D11
D12
D13
D14
JUNCTION
CONNECTOR J 5
1 2
1M 5 1M 3
W±B L±B
5 10UNLOCK WARNING SW U 110A
GAU GE
7 1
B J31 A , J32
G
L±B

DOOR LOCK CONTROL
Current always flows to TERMINAL (A) 13 of the integration relay through the DOOR fuse.
When the ignition SW is turned on, the current flowing through the GAUGE Fuse flows to TERMINAL 7 of the integration
relay to TERMINAL (A) 12 to the POWER relay (Coil side) to GROUND.
1. MANUAL LOCK OPERATION
When the door lock control SW or door key lock and unlock SW are operated to LOCK position, a lock signal is input to
TERMINAL (A) 1 or (A) 3 of the integration relay and causes the relay to function. Current flows from TERMINAL (A) 13 of
the relay to TERMINAL (A) 6 to TERMINAL 2 of the door lock motors to TERMINAL 3 to TERMINAL (A) 7 of the relay to
TERMINAL 10 to GROUND and the door lock motor causes the door to lock.
2. MANUAL UNLOCK OPERATION
When the door lock control SW or door key lock and unlock SW are operated to UNLOCK position, an unlock signal is input
to TERMINAL (A) 2, (A) 4 or (A) 5 of the integration relay and causes the relay to function. Current flows from TERMINAL (A)
13 of the relay to TERMINAL (A) 7 to TERMINAL 3 of the door lock motors to TERMINAL 2 to TERMINAL (A) 6 of the relay
to TERMINAL 10 to GROUND and door lock motors causes door to unlock.
3. DOUBLE OPERATION UNLOCK OPERATION
When the door key lock and unlock SW front LH is turned to the unlock side, only the driver's door to unlock. Turning the
door key lock and unlock SW front LH to the unlock side causes a signal to be input to TERMINAL (A) 4 of the relay, and if
the signal is input again within 3 seconds by turning the SW to the unlock side again, current flows from TERMINAL (A) 7 of
the integration relay to TERMINAL 3 of the door lock motors to TERMINAL 2 of the door lock motors to TERMINAL (A) 6 of
the relay to TERMINAL 10 to GROUND, causing the door lock motors to operate and unlock the doors.
4. IGNITION KEY REMINDER OPERATION
When the door is locked using the door lock knob with the ignition key remaining in the key cylinder and door opened, it is
automatically unlocked. Additionally, if lock operation is made by the door lock control SW or door key lock and unlock, after
the lock operation is completed, the doors are unlocked automatically.
I12 (A) INTEGRATION RELAY
10±GROUND : Always continuity
6±GROUND : Continuity with the front LH door open
7±GROUND : Approx. 12 volts with the ignition SW at ON or ST position
(A)13±GROUND : Always approx. 12 volts
(A) 6±GROUND : Approx. 12 volts 0.2 seconds with following operation
* Door lock control SW locked
* Locking the front LH, RH door cylinder with key
(A) 1±GROUND : Continuity with the door lock control SW locked
(A) 8±GROUND : Continuity with the front RH door open
(A) 2±GROUND : Continuity with the door lock control SW unlocked
(A) 5±GROUND : Continuity with the front RH door lock cylinder unlocked with key
(A) 4±GROUND : Continuity with the front LH door lock cylinder unlocked with key
(A) 3±GROUND : Continuity with the front LH, RH door lock cylinder locked with key
(A) 7±GROUND : Approx. 12 volts 0.2 seconds with following operation
* Door lock control SW unlocked
* Door lock control SW locked with the ignition key in cylinder and the front LH door open
(Ignition key reminder function)
* Door lock knob locked with the ignition key in cylinder and the front LH door open
(Ignition key reminder function)
* Unlocking the front LH, RH door cylinder with key
D7, D8 DOOR COURTESY SW FRONT LH,RH
1±GROUND : Closed with the each door open
D11, D12 DOOR KEY LOCK AND UNLOCK SW FRONT LH,RH
1±2 : Closed with the door lock cylinder locked with key
1±3 : Closed with the door lock cylinder unlocked with key
D14, D15 DOOR LOCK MOTOR AND DOOR UNLOCK DETECTION SW FRONT LH,RH
1±4 : Closed with the door lock knob UNLOCK position
U1 UNLOCK WARNING SW
1±2 : Closed with the ignition key in cylinder
SYSTEM OUTLINE
SERVICE HINTS

A1 2 1 2 1D 21C7 1J 9
IK1 1 IK1 2 IB1 9 IB1 3
2 1 2 1 B 22 B9J24
10 B23 B 13 B5 B 11FROM POWER SOURCE SYSTEM (
SEE PAGE 44)
R±L
B±R B±R
G±W G±WR±L
R
G G R
W
BW
B
ABS SPEED SENSOR
FRONT LHABS SPEED SENSOR
FRONT RH D D10A
GAUGE
ABS WARNING
LIGHT
[COMB. METER]
ABS SPEED SENSOR
REAR LHABS SPEED SENSOR
REAR RH 15A
ECU±IG15A
STOP
ABS ECUA 6 A 7R±L
J 3
JUNCTION
CONNECTOR
C12
B
B J23
A19 A201R 51R 4
STOP LIGHT SW
W G± W1 2S 4
IFB 12 B 25
A
JUNCTION
CONNECTOR J 9
W±B W±B
IF1 12
C7
C4
G±B G± B
B CA A
C CCIJ2 1IJ26
A 9 A 3 A 2 A 8
R
G
W
BGRJUNCTION
CONNECTOR JUNCTION
CONNECTOR J22
JUNCTION
CONNECTOR J12
G± B
GND GND,
B A13 A , A14
WA IG1 STP FL+ FL± FR+ FR±
RL+ RL± RR+ RR±

SRS
NOTICE: When inspecting or repairing the SRS, perform the operation in accordance with the following precautionary
instructions and the procedure and precautions in the Repair Manual for the applicable model year.

Malfunction symptoms of the SRS are difficult to confirm, so the DTCs become the most important source of information
when troubleshooting. When troubleshooting the SRS, always inspect the DTCs before disconnecting the battery.

Work must be started after 90 seconds from when the ignition switch is turned to the ºLOCKº position and the
negative (±) terminal cable is disconnected from the battery.
(The SRS is equipped with a back±up power source so that if work is started within 90 seconds from
disconnecting the negative (±) terminal cable of the battery, the SRS may be deployed.)

When the negative (±) terminal cable is disconnected from the battery, the memory of the clock and audio system will be
canceled. So before starting work, make a record of the contents memorized in the audio memory system. When work is
finished, reset the audio systems as they were before and adjust the clock. To avoid erasing the memory in each
memory system, never use a back±up power supply from outside the vehicle.

Before repairs, remove the airbag sensor if shocks are likely to be applied to the sensor during repairs.

Do not expose the steering wheel pad, front passenger airbag assembly, seat belt pretensioner, center airbag sensor
assembly or front airbag sensor assembly directly to hot air or flames.

Even in cases of a minor collision where the SRS does not deploy, the steering wheel pad, front passenger airbag
assembly, seat belt pretensioner, center airbag sensor assembly and front airbag sensor assembly should be inspected.

Never use SRS parts from another vehicle. When replacing parts, replace them with new parts.

Never disassemble and repair the steering wheel pad, front passenger airbag assembly, seat belt pretensioner, center
airbag sensor assembly or front airbag sensor assembly in order to reuse it.

If the steering wheel pad, front passenger airbag assembly, seat belt pretensioner, center airbag sensor assembly or
front airbag sensor assembly has been dropped, or if there are cracks, dents or other defects in the case, bracket or
connector, replace them with new ones.

Use a volt/ohmmeter with high impedance (10 kW/V minimum) for troubleshooting the system's electrical circuits.

Information labels are attached to the periphery of the SRS components. Follow the instructions on the notices.

After work on the SRS is completed, perform the SRS warning light check.

If the vehicle is equipped with a mobile communication system, refer to the precaution in the IN section of the Repair
Manual.

2 1A 2A1
2 1C 5C6 13 12
IE2 2
A AIG3 7IG311
C C
IG3 6
A A
EC B 12 B 3B19 511 3
B
3 AB
B
4
7
A AB TC E1
E1 TC
SILLG
LG±R
BR LG
LG±R B±Y
P±B
LG±R BR BR BR BRW Y Y±B
W
BR
W±R
LG
PRETENSIONER
LH P13
PRETENSIONER
RH P14JUNCTION
CONNECTOR J 2
JUNCTION
CONNECTOR J 2
DATA LINK
CONNECTOR 3 D 3
DATA LINK
CONNECTOR 2 D 2LG
C 4
CENTER AIRBAG SENSOR ASSEMBLYB A, C 5
C , C 6
Y±B
Y
PL+ PL± PR+ PR± SILLA TC
JUNCTION
CONNECTOR J20A CAC
B B
(
SHIELDED)
BR
J 6
JUNCTION
CONNECTORB A, J 7
DATA LINK
CONNECTOR 1 D 1
SRS WARNING
LIGHT
[COMB. METER] C11
I 1