1999 TOYOTA CAMRY steering

G ELECTRICAL WIRING ROUTING
Position of Parts in Instrument Panel
A 12 A/C Amplifier
A 13 A/C Evaporator Temp. Sensor
A 14 A/C SW
A 15 ABS and Traction ECU
A 16 ABS and Traction ECU
A 17 ABS and Traction ECU
A 18 ABS ECU
A 19 ABS ECU
A 20 Air Vent Mode Control Servo Motor
A 22 Airbag Squib (Front Passenger Airbag Assembly)
A 23 Airbag Squib (Steering Wheel Pad)
A 24 Ashtray Illumination
A 33 A/C Blower Motor Linear Controller
A 34 A/C Control Assembly
A 35 A/C Control Assembly
A 36 A/C Room Temp. Sensor
A 37 A/C Solar Sensor
A 38 Air Inlet Control Servo Motor
A 39 Air Mix Control Servo Motor
A 40 Automatic Light Control Sensor
B 3 Blower Motor
B 4 Blower Resistor
B 5 Blower SW
B 8 Blower Resistor (Low Speed)
C 4 Cigarette Lighter
C 5 Cigarette Lighter Illumination
C 6 Clock
C 7 Clutch Start SW
C 8 Combination Meter
C 9 Combination Meter
C 10 Combination MeterC 11 Combination SW
C 12 Combination SW
C 13 Combination SW
C 14 Cruise Control Clutch SW
C 15 Cruise Control ECU
C 17 Center Airbag Sensor Assembly
C 18 Center Airbag Sensor Assembly
C 19 Center Airbag Sensor Assembly
D 4 Data Link Connector 2
D 5 Data Link Connector 3
D 6 Daytime Running Light Relay (Main)
D 7 Diode (Courtesy)
D 10 Diode (Dome)
D 11 Diode (Idle±Up)
E 7 Engine Control Module
E 8 Engine Control Module
E 9 Engine Control Module
E 10 Engine Control Module
E 11 Engine Control Module
G 3 Glove Box Light and SW
H 7 Hazard SW
H 8 Heated Oxygen Sensor (Bank 1 Sensor 2)
H 9 Heater Control SW
I 15 Ignition Key Cylinder Light
I 16 Ignition SW
I 17 Integration Relay
I 18 Integration Relay

I 2
I 2 I 2
I 2 I 21 2
1 2D 3
D 18 D23 D2D13 D14 A17 E 22D 9
1 II1 2
13 213 1 3 1
3 1 A
2312 34 2 4 2 2 B±Y
BR(
*1) BR
BR Y BR E2 VTA1 VC THG THW PTNKEGLSPS RSO RSC HTS OXS HAFR
B±LW± G
P BR
YY
BR BR
G±B G±Y YL BR BR
Y
R±W
Y±B
P±B
B
B± R(
*1)
BR(
*1)BBR BRB±Y B±Y
B±Y
(
SHIELDED)
(
SHIELDED)(
SHIELDED) Y
A
IDLE AIR CONTROL VALVE
HEATED OXYGEN SENSOR
(
BANK 1 SENSOR 2)
AIR FUEL RATIO SENSOR
(
BANK 1 SENSOR 1) I 1
H 8
A28
JUNCTION
CONNECTOR J20
T 2
THROTTLE POSITION SENSOR
EGR GAS TEMP. SENSOR
ENGINE COOLANT TEMP. SENSOR
VAPOR PRESSURE SENSOREGR VAL VE
POSITION SENSOR
POWER STEERING
OIL PRESSURE SWE 1
E 5
V 1E 2
P 2
ENGINE CONTROL MODULEB E 7 E 8ACE 9 DE10+B E1
HT OX
PTNK
E2 VCC
E2 VTA VC BRI 2ID1 6IG34II2 1 C 16
6
IND
P
R±Y R±Y R±Y
G± W G±W
E 29
FROM FAN NO. 1 RELAYCF
IMLD , , , EE1 1 , B B
B JUNCTION
CONNECTOR J2 4
B(
*1)
THEFT
DETERRENT
ECU T 3 BR B(
*1)
AFR± AFR+
B D
B D
B J10
JUNCTION
CONNECTOR E 16 E15 B9B8D11 D20
G(
*1 *4)
BR(
*1 *5)
R(
*1 *4)
B±R(
*1 *5)
B(
*1) B±Y
D 12 D4 I 2 BR
I 2
I 2 42
31A
OX HTBR
B
Y±RBR
B±Y (
SHIELDED)
(
*6)(
*6)
(
*6)
(
*6) (
*6) (
*6)
OXL1 HTLE1 +B
HEATED OXYGEN SENSOR
(
BANK 2 SENSOR 1) H 4
(
SHIELDED)BR(
*6)
BR(
*6)BR(
*6) BR(
*6)
II13
ID15 II1 4ID12
BRBR
YBR(
*6)
* 1 : CALIFORNIA
* 4 : TMC MADE
* 5 : TMMK MADE
* 6 : EXCEPT CALIFORNIA
(
*1)

FROM POWER SOURCE SYSTEM (
SEE PAGE 50)
1C 91J11
1 2
2 1
IK2 7IK22
IK2 9II3 10 II21
1 I 2 I 2
A 10 A 20 A21 A19 C19 B11 C4 B 6C8B15 C4C17 C5A2
2 1 B8 1 3
2 A
B4 2123
A
1 3
2 5 1
BR
B±YBR BRB±Y(
*6) B±Y
BR
BR
BR
BR
BR
B±Y PS SW THR LOCK IN PRS MGC TE1
A/C SW LOCK
B±LL±R L±W BRW±L W±L W±LG L±Y
G L±YR±BR±B R±W
R±BW
L±Y
L±W
B±R
BR
L
B±W
G±O G±O
B±YB±Y
BR
B±Y
BR
OX1 HT1 TE1 NE+ NE± G+ E LSE1 +B
10A TAIL
10A
MIRROR±
HEATER (
SHIELDED)
(
SHIELDED) (
SHIELDED)
(
*6) (
*6)(
*6)
(
*6)
L
B±R
(
*6)
DIODE
(
IDLE±UP)
HEATED OXYGEN SENSOR
(
BANK 1 SENSOR 1)
DATA LINK
CONNECTOR 1
CRANKSHAFT
POSITION SENSOR
CAMSHAFT
POSITION SENSOR
JUNCTION
CONNECTORH 3
D 1
C 2
C 1
J12
D11
JUNCTION CONNECTOR
A/C SWHEATER CONTROL SW
A/C EVAPORATOR
TEMP. SENSOR
POWER STEERING OIL PRESSURE SWFROM MG
CLT RELAY
FROM
A/C DUAL
PRESSURE SW
FROM A/ C
MAGNETIC
CLUTCH AND
LOCK SENSORJ12
A13
P 2H 9
A14* 5 : CALIFORNIA
* 6 : EXCEPT CALIFORNIA
BR
ENGINE CONTROL MODULEB E 7 E 8ACE 9 +B E1
OX HT* 1 : W/ ENGINE IMMOBILISER SYSTEM
* 2 : W/O ENGINE IMMOBILISER SYSTEM
, , DE10 , B 5C1B7D12 D6D11 A13(
*1)
(
*2)
IG3 8D 4KSW
L±B L±B L±B
TO UNLOCK
WARN ING SW
A 10 A 15 A21 A13 C18 B10 B12
IG3 4II4 3D 1IMLD
R±Y R±Y R±Y
6
IND R±YTHEFT DETERRENT
ECU T 3
(
*1)
(
*2) D 3D8D9TXCT CODE RXCK
R±L
G± W
L±Y
TO TRANSPONDER
KEY AMPLIFIER
DD
J10
JUNCTION
CONNECTORII4 9 * 3 : TMC MADE
* 4 : TMMK MADE

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, side airbag assembly, seat belt pretensioner,
center airbag sensor assembly, front airbag sensor assembly or side 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, side airbag assembly, seat belt pretensioner, center airbag sensor assembly, front airbag sensor assembly
and side 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, side airbag assembly, seat belt
pretensioner, center airbag sensor assembly, front airbag sensor assembly or side airbag sensor assembly in order to
reuse it.

If the steering wheel pad, front passenger airbag assembly, side airbag assembly, seat belt pretensioner, center airbag
sensor assembly, front airbag sensor assembly or side 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.

SRS
5A
IGN
1N 415A
CIG FROM POWER SOURCE SYSTEM (
SEE PAGE 50)
1N 210A
ECU±B
2J 7
1G2
1W3
B 5B6A7A9A10 A12
1N 1
1J 71N 3
1V 3
IG IE AB 27 B28
12
SPIRAL
CABLE
2 121 B 14 B13 B10 B11 A5A6 1234
B±O
GR
P±L
L±W
LG±B
GR ±L Y±GY±RY Y±B W±B W±B W±B
W±B
W±R W±R
AIRBAG SQUIB
(
STEERING
WHEEL PAD) A23
AIRBAG SQUIB
(
FRONT PASSENGER
AIRBAG ASSEMBLY) A22
SIDE AIRBAG
SQUIB LH S 9
J UNCTION
CONNECTOR J11SIDE AIRBAG
SENSOR LH S 7
C17
CENTER AIRBAG SENSOR ASSEMBLYB A, C18 C, C19 B 26 B15 B20 B9 IT1 1IT12IU11IU12
BR BR
W± R
BR±W
B±W W±R
BR±W
B± W
AIRBAG SENSOR
FRONT L H A31
AIRBAG SENSOR
FRONT RH A32
(
*3)
(
*3)
(
*3)
(
*3) Y±R
(
*1 *3)
Y±R
(
*1 *3) Y±R
(
*2 *3) Y±R
(
*2 *3)
Y±G
(
*2 *3) Y± G
(
*2 *3)
BV1 1BV12 CONNECTION
DETECTION
PIN
2 1BA
CONNECTION
DETECTION
PIN
2 1BA

SRS
The SRS is a driver and front passenger protection device which has a supplemental role to the seat belts.
When the ignition SW is turned to ACC or ON, current from the CIG fuse flows to TERMINAL (B) 6 of the center airbag
sensor assembly. Only when the ignition SW is on does the current flow from the IGN fuse to TERMINAL (B) 5 of the center
airbag sensor assembly.
If an accident occurs while driving, when the frontal impact exceeds a set level, current from the CIG or IGN fuse flows to
TERMINALS (B) 14, (B) 10, (A) 2 and (C) 5 of the center airbag sensor assembly to TERMINAL 1 of the airbag squibs and
the pretensioners to TERMINAL 2 to TERMINALS (B) 13, (B) 11, (A) 1 and (C) 6 of the center airbag sensor assembly to
TERMINAL (B) 27, (B) 28 or BODY GROUND to GROUND, so that current flows to the front airbag squibs and the
pretensioners and causes them to operate.
When the side impact also exceeds a set level, current from the CIG or IGN fuse flows to TERMINALS (A) 5, (C) 2, (A) 2 and
(C) 5 of the center airbag sensor assembly to TERMINAL 1 of the side airbag squibs and the pretensioners to TERMINAL 2
to TERMINALS (A) 6, (C) 1, (A) 1 and (C) 6 of the center airbag sensor assembly to TERMINAL (B) 27, (B) 28 or BODY
GROUND to GROUND, causing side airbag squibs and the pretensioners to operate.
The airbag stored inside the steering wheel pad is instantaneously expanded to soften the shock to the driver.
The airbag stored inside the passenger's instrument panel is instantaneously expanded to soften the shock to the front
passenger.
Side airbags are instantaneously expanded to soften the shock of side to the driver and front passenger.
The pretensioners make sure of the seat belt restrainability.
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A2230D430P2433
A2330D530P2533
C930J331S733
C17A30J7A31S833
C18B30J8B31S934
C19C30J1131S1034
D126 (1MZ±FE)J2231D128 (5S±FE)J2331
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1G20Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
1J
1N20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)1V20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1W
2J22Cowl Wire and Engine Room J/B No.2 (Engine Compartment Left)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IG240Instrument Panel Wire and Cowl Wire (Lower Finish Panel)
II342Engine Wire and Cowl Wire (Under the Blower Motor)
IT142Cowl Wire and Cowl Wire (Left Kick Panel)
IU142Engine Room Main Wire and Cowl Wire (Right Kick Panel)
BV146Floor Wire and Seat No.1 Wire (Under the Driver's Seat)
BW146Floor No.2 Wire and Seat No.2 Wire (Under the Front Passenger's Seat)
: GROUND POINTS
CodeSee PageGround Points Location
EC36 (1MZ±FE)Surge Tank RHEC38 (5S±FE)Intake Manifold
IE40Cowl Side Panel LH
IG40Instrument Panel Brace LH
SYSTEM OUTLINE

J
5
678
3 CAMRY (
Cont ' d)A
B
C
R Q O N ML KJI12 C
#10 #20
THW
B 411 C
R
G±B
#30
THA
B 325 CY
Y±B
#40
VC
B 124 CW
Y
+B
VT A
B 1112 AB± Y
LG
BATT
PIM
B 21AB± Y
B±Y
ISCO
PTNK
B 710 CW
P
ISCC
THR
B 109CB±O
L±R
EGR
W
A 523 CP± B
G±R
FC
A 14G±R
PSSW
B 12B±L
ELS
A 2B±R
Y
LG
B±Y
P
L±R
G±R
G±R
B±Y
B1 2
3
I 1
IDLE AIR CONTROL VALVE
1 2
EVP 22 C
V±W2 1
TPC 8B
V V 4
VSV(
EGR) V 5
VSV(
EVAP)
V 7
VSV(
Vapor Pressure Sens or)B
BBBBB
B± Y B± Y B± Y
V
1
From Diode(
Idle±Up)
< 26±1>
B±Y B±Y B±Y
B±Y
B±Y
P 2
POWER STEERING
OIL PRESSURE SW
(
*4) J19
JUNCTION CONNECTOR
E ngine Control and Engine Immobiliser System (
5S±FE)
(
Cont. next page)
ENGI NE CONTROL MODULE1 2
I11
INJECTOR NO. 4
1 2
I10
INJECTOR NO. 3
1 2
I 9
INJECTOR NO. 2
1 2
I 8
INJECTOR NO. 1
B B
BBB J21
JUNCTION CONNECTOR
B±R
B±R
B±R
B±R L
B±R
D
12 II3
B± R
E
F
IGSW 1A
B±R
MREL 7DB±W
6II4
BRE 5
ENGINE COOLANT
TEMP. SENSOR
I14
INTAKE AIR TEMP.
SENSOR
BR BR
BR
1
21
2E2 9BY± B G± B
HA
B
C B
5II4 1ID1 12
G
PID110 B±R(
*1)
B±W(
*1)
B±Y B±Y
9B12C 11C 10C 9C 12A 2A 7C 6C 15B 3C
4B 3B 1B 10B 2B 8B 11B 4A 14A 4C 13A 3D 8D 9D
4 II4 1 II4 2 II4
IE Co wl s i de
panel LH1II3
W± B
14 CHT 2 OX2
B 13 6ASIL
SIL
JUNCTION CONNECTOR
A C A ASG
B BBR
B A CG
W± B
71J
BR 81J7
IG5 D 5
DATA LI NK
CONNECTOR 3
42II3
(
Shielded)
3
12 II2 241BBR P± B P±B
BB±Y
A
J11
JUNCTION
CONNECTORW± B BR
HT
E1 OX
+B
D
E
T 7
TRANSPONDER KEY AMPLIFIER
Instrument
panel
brac e LH* 1 : w/ Engine Immobiliser System
* 2 : w/o Engine Immobiliser System
W±B
(
*1)
R± L G±WL±Y
R±L G±WL±Y
B±YB
(
*1)(
*1) (
*1) (
*1) (
*1)(
*1)
(
*1)
324
1A C BAT
16
5
(
Shielded) (
Shielded)
J 3
JUNCTION
CONNECTOR
WW B±R
B±W
V
V
16 B BR(
*3)
(
*2) (
*1)
B± Y(
*1)(
*2)(
*1)
BR
BR CC
BR
21 C B 5 16 A(
*2) (
*1)
(
*1)(
*1) (
*1)B H 8
HEATED OXYGEN SENSOR
(
Bank 1 Sens or 2)
RX CK CODE TX CT
B J 7 J 8A,
, E 8 E 7 A B , E 9 C , E10 D
C
W
From Airbag Sensor
Assembly< 28±4>
* 3 : California
* 4 : Ex cept Calif ornia

J OVERALL ELECTRICAL WIRING DIAGRAM
1
234
28 CAMRY
28
,
B 10AB
2
12A
Y± B(
*1)
L±B(
*2) Y
P24
PRETENSIONER LHA 1 67A 2ACC
IG1
IG2
ST 2 AM13
I16
IGNITION SW6 7AM2
1ACENTER AI RBAG SENSOR ASSEMBLY
,
1B 1
1F 1C
40A AM1
1K 2
2A 1
10A ECU±B
2J 7
42L
30A
AM2
B± G
1B 51K 5
SHORT
PIN
100A
ALT1K 3
A23
AIRBAG SQUIB
(
Steering
Wheel Pad)
IG1N 4
1N 11W 3
1G 2
1J 7
Co wl s i de
panel LH IE A1N 3
1V 3 12
SPI RAL
CABLE
12BA
S 9
SIDE AI RBAG
SQUI B LH
Y±G
Y±R
B±RB
W±R
W±R
W
W
B± RL±RW± R
B±O
A
2 1
LG
FL MAIN
3. 0W
BATTERY
W± B
W± RW± BW± B
5
Y±BY Y±R Y±G W± B
1 213 12
J11
JUNCTION
CONNECTORA2 2
AI RBAG SQUIB
(
Fr ont Pas senger
Airbag Assembly)W± R
W± RC 9
SRS WARNING LIGHT
[COMB. METER]
B
FUSIBLE LINK
BLOCKF F 9 C F 6 A F 4
11
I nst rument panel
brace LH 1 2
, C18 C1 7 C, C19 5B1K 6
1N 2GR6BA 910A12A 1234S 7
SI DE AIRBAG SENSOR LH
12 C C10 9C 7C 1234
GR±L
S 8
SIDE AI RBAG SENSOR RH
P±L L±W LG±BP L±YLG GR
A
P±B
LG B± Y(
*4)
LG(
Except * 4)
To Data Link Connec tor 1, 2
< 18±4> < 19±3> < 20±3> < 20±4>
3B 19BA
P± B
B± Y J 3
JUNCTION
CONNECTOR
2
12CY±R Y±GS10
SIDE AIRBAG
SQUIB RHC 15
12C
Y±BY
P25
PRET ENSI ONER RHC 6 14 B 13 B 27 B
Power SourceSRS
To Data Link Connect or 3
< 2±3> < 3±8>12 B
W
±SL2IG27II3
W± R
B 26
B± W
BR±W
15 B
B±W
20 B
BR
9B 2IT1 1IU1 IU122 1 2 1
BR±W
W± R
BR
A31
AIRBAG SENSOR
FRONT L HA3 2
AI RBAG SENSOR
FRONT RH
(
*3)
(
*3) (
*3)
(
*3)
(
*1 *3) (
*1 *3) (
*1 *3)
(
*1 *3)
2F+SRB±R B±R
±SR +SL* 1 : TMC Made
* 2 : TMMK Made
* 3 : w/ Side Airbag
(
*3) (
*3) (
*3) (
*3)VUPR SSR+ FSR ESR VUPL SSL+ FSL ESLLA TC
SFL+ SFL± PL+ PL± SFR+ SFR± PR+ PR± E2 SIL E1 D+ D± P+ P±IG2 ACC
1 BV1 2 BV1 1 BW1 2 BW1
Y±R Y±GY±R Y±G
Y±R Y±GY±R Y±G
(
*2 *3)(
*2 *3) (
*2 *3)(
*2 *3) (
*2 *3)(
*2 *3) (
*2 *3)(
*2 *3)
A
LG * 4 : TMMK Made 1MZ±FE
AABB
CONNECTION
DETECTION
PINCONNE CTI ON
DE TE CTI ON
PI N
5A
IGN15A
CIG
1IT1