steering wheel TOYOTA CAMRY 1999 Service Owner's Guide

DI±12
± DIAGNOSTICSENGINE
SHORT FT #1
Short±term Fuel Trim Bank 10 ± 20 %
LONG FT #1Long±term Fuel Trim Bank 10 ± 20 %
ENGINE SPDEngine SpeedIdling: 650 ± 750 rpm
VEHICLE SPDVehicle SpeedVehicle Stopped: 0 km/h (0 mph)
IGN ADVANCEIgnition Advance: Ignition Timing of Cylinder No.1Idling: BTDC 0 ± 10°
INTAKE AIRIntake Air Temp. Sensor ValueEquivalent to Ambient Temp.
MAPAbsolute Pressure inside Intake ManifoldIdling: 20 ± 51 kPa
Racing without load (2,500 rpm): 17 ± 48 kPa
THROTTLE POSVoltage Output of Throttle Position Sensor Calcu-
lated as a percentage: 0 V "0 %, 5 V "100 %Throttle Fully Closed: 6 ± 16 %
Throttle Fully Open: 64 ± 98 %
O2S B1 S1Voltage Output of Heated Oxygen Sensor Bank 1
Sensor 1Idling: 0.1 ± 0.9 V (0.56 ± 0.76 V*2)
O2FT B1 S1Heated Oxygen Sensor Fuel Trim Bank 1 Sensor
1 (Same as SHORT FT #1)0 ± 20 %
A/FS B1 S1Voltage Output of A/F SensorIdling: 2.8 ± 3.8 V
A/FFT B1 S1A/F Sensor Fuel Trim (Same as SHORT FT #1)0 ± 20 %
O2S B1 S2Voltage Output of Heated Oxygen Sensor Bank 1
Sensor 2Driving at 50 km/h (31 mph): 0.05 ± 0.95 V
*1: If no conditions are specifically stated for ºldlingº, it means the shift lever is at N or P position, the A/C
switch is OFF and all accessory switches are OFF.
*
2: When you use the OBD II scan tool (excluding TOYOTA hand±held tester).
(b) TOYOTA Enhanced Signals.
TOYOTA hand±held tester displayMeasurement ItemNormal Condition*
MISFIRE RPMEngine RPM for first misfire rangeMisfire 0: 0 rpm
MISFIRE LOADEngine load for first misfire rangeMisfire 0: 0 g/r
INJECTORFuel injection time for cylinder No.1Idling: 2.9 ± 5.1 ms
IAC DUTY RATIOIntake Air Control Valve Duty Ratio
Opening ratio rotary solenoid type IAC valveIdling: 25 ± 62 %
STARTER SIGStarter SignalCranking: ON
CTP SIGClosed Throttle Position SignalThrottle fully closed: ON
A/C SIGA/C Switch SignalA/C ON: ON
PNP SIGPark/Neutral Position Switch SignalP or N position: ON
ELECTCL LOAD SIGElectrical Load SignalDefogger S/W ON: ON
STOP LIGHT SWStop Light Switch SignalStop light switch ON: ON
PS OIL PRESS SWPower Steering Oil Pressure Switch SignalTurn steering wheel: ON
FC IDLFuel Cut Idle: Fuel cut when throttle valve fully
closed, during decelerationFuel cut operating: ON
FC TAUFuel Cut TAU: Fuel cut during very light loadFuel cut operating: ON
CYL#1, CYL#2, CYL#3, CYL#4Abnormal revolution variation for each cylinder0 %
IGNITIONTotal number of ignition for every 1,000 revolu-
tions0 ± 2,000
EGR SYSTEMEGR system operating conditionIdling: OFF
FUEL PUMPFuel Pump SignalIdling: ON
A/C CUT SIGA/C Cut SignalA/C S/W OFF: ON
A/C MAG CLUTCHA/C Switch SignalA/C ON: ON
EVAP (PURGE) VSVEVAP VSV SignalVSV operating: Avove 30 %

DI±226
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
7. RELEASE METHOD OF AIRBAG ACTIVATION PRE-
VENTION MECHANISM
An airbag activation prevention mechanism is built into the con-
nector for the squib circuit of the SRS.
When release of the airbag activation prevention mechanism is
directed in the troubleshooting procedure as shown in the il-
lustration of the connectors on the next pages, insert paper
which has the same thickness as the male terminal, between
the terminal and the short spring.
CAUTION:
Never release the airbag activation prevention mechanism
on the steering wheel pad connector.
NOTICE:

Do not release the airbag activation prevention mech-
anism unless specifically directed by the trouble-
shooting procedure.

If the inserted paper is too thick the terminal and short
spring may be damaged, so always use paper with
the same thickness as the male terminal.

H02720
Airbag Sensor
AssemblyFront Passenger Airbag
Assembly (Squib)
Steering Wheel
Pad (Squib)
No.1 J/B
Pretensioner (LH) Spiral Cable 2
35 4
67 1
8
9
10
Front Airbag Sensor (RH)
Front Airbag Sensor (LH) 11
Pretensioner (RH)
12
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±227

DI1AZ±09
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±229
DIAGNOSTIC TROUBLE CODE CHART
If a malfunction code is displayed during the DTC check, check the circuit listed for that code in the table
below (Proceed to the page given for that circuit.).
DTC No.
(See Page)Detection ItemTrouble AreaSRS
Warning Light
B0100/13
(DI±234)

Short in D squib circuit
Steering wheel pad (squib)

Spiral cable

Airbag sensor assembly

Wire harness
ON
B0101/14
(DI±239)

Open in D squib circuit
Steering wheel pad (squib)

Spiral cable

Airbag sensor assembly

Wire harness
ON
B0102/11
(DI±243)

Short in D squib circuit (to Ground)
Steering wheel pad (squib)

Spiral cable

Airbag sensor assembly

Wire harness
ON
B0103/12
(DI±247)

Short in D squib circuit (to B+)
Steering wheel pad (squib)

Spiral cable

Airbag sensor assembly

Wire harness
ON
B0105/53
(DI±251)
Short in P squib circuit
Front passenger airbag assembly (squib)

Airbag sensor assembly

Wire harness
ON
B0106/54
(DI±255)
Open in P squib circuit
Front passenger airbag assembly (squib)

Airbag sensor assembly

Wire harness
ON
B0107/51
(DI±258)
Short in P squib circuit (to Ground)
Front passenger airbag assembly (squib)

Airbag sensor assembly

Wire harness
ON
B0108/52
(DI±261)
Short in P squib circuit (to B+)
Front passenger airbag assembly (squib)

Airbag sensor assembly

Wire harness
ON
B0130/63
(DI±264)
Short in P/T squib (RH) circuit
Seat belt pretensioner RH (squib)

Airbag sensor assembly

Wire harness
Blink
B0131/64
(DI±268)
Open in P/T squib (RH) circuit
Seat belt pretensioner RH (squib)

Airbag sensor assembly

Wire harness
Blink
B0132/61
(DI±271)
Short in P/T squib (RH) circuit
(to Ground)
Seat belt pretensioner RH (squib)

Airbag sensor assembly

Wire harness
Blink
B0133/62
(DI±274)
Short in P/T squib (RH) circuit
(to B+)
Seat belt pretensioner RH (squib)

Airbag sensor assembly

Wire harness
Blink
B0135/73
(DI±277)
Short in P/T squib (LH) circuit
Seat belt pretensioner LH (squib)

Airbag sensor assembly

Wire harness
Blink
B0136/74
(DI±281)
Open in P/T squib (LH) circuit
Seat belt pretensioner LH (squib)

Airbag sensor assembly

Wire harness
Blink

DI1B0±10
H10307
Combination Meter
(Warning Light)Steering Wheel Pad
(with Airbag)
Airbag Sensor AssemblyFront Passenger
Airbag Assembly
Seat Belt
Pretensioner (LH)Seat Belt
Pretensioner (RH) Front Airbag
Sensor (LH)Front Airbag Sensor (RH)
Spiral Cable
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±231
PARTS LOCATION

DI18Q±15
H01451
Y±B
D+ C5 14Airbag Sensor Assembly
13
C5
D± Y 1
2
Spiral
Cable D Squib DI±234
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
CIRCUIT INSPECTION
DTC B0100/13 Short in D Squib Circuit
CIRCUIT DESCRIPTION
The D squib circuit consists of the airbag sensor assembly, spiral cable and steering wheel pad.
It causes the airbag to deploy when the airbag deployment conditions are satisfied.
For details of the function of each component, see Pub. No. RM654U on page RS±2.
DTC B0100/13 is recorded when a short is detected in the D squib circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0100/13

Short circuit between D+ wire harness and D± wire har-
ness of squib

D squib malfunction

Spiral cable malfunction

Airbag sensor assembly malfunction
Steering wheel pad (D squib)

Spiral cable

Airbag sensor assembly

Wire harness
WIRING DIAGRAM

R14286H01001H01134
D SquibSpiral
Cable
Airbag
Sensor
Assembly
D+
(±) (+)D±
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±235
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI±305).
2 Check D squib circuit.
PREPARATION:
Release the airbag activation prevention mechanism of the
connector (on the airbag sensor assembly side) between the
airbag sensor assembly and the spiral cable (See page
DI±223).
CHECK:
For the connector (on the spiral cable side) between the spiral
cable and the steering wheel pad, measure the resistance be-
tween D+ and D±.
OK:
Resistance: 1 MW or Higher
NG Go to step 5.
OK

AB0118
R13006AB0119FI1390
H01003H01136
D SquibSpiral
CableAirbag
Sensor
Assembly
E1 TcACC ON
or
DTC B0100/13
DLC1
" u
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±237
4 Check D squib.
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect negative (±) terminal cable from the battery,
and wait at least for 90 seconds.
(c) Connect the steering wheel pad connector.
(d) Connect negative (±) terminal cable to the battery, and
wait at least for 2 seconds.
CHECK:
(a) Turn ignition switch to LOCK, and wait at least for 20 se-
conds.
(b) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
(c) Clear DTC stored in memory (See page DI±223).
(d) Turn ignition switch to LOCK, and wait at least for 20 se-
conds.
(e) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
(f) Check DTC (See page DI±223).
OK:
DTC B0100/13 is not output.
HINT:
Codes other than code B0100/13 may be output at this time, but
they are not relevant to this check.
NG Replace steering wheel pad.
OK
From the results of the above inspection, the malfunctioning part can now be considered normal.
To make sure of this, use the simulation method to check.

R14286H01000H01137
D SquibSpiral
Cable
Airbag
Sensor
Assembly
D+ u"
(±) (+)D±
R14286H01004H01138
D SquibSpiral
Cable
Airbag
Sensor
Assembly
D+
(±) (+)D±
DI±238
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
5 Check spiral cable.
PREPARATION:
(a) Disconnect the connector between the airbag sensor as-
sembly and the spiral cable.
(b) Release the airbag activation prevention mechanism of
the spiral cable connector on the airbag sensor assembly
side (See page DI±223).
CHECK:
For the connector (on the spiral cable side) between the spiral
cable and the steering wheel pad, measure the resistance be-
tween D+ and D±.
OK:
Resistance: 1 MW or Higher
NG Repair or replace spiral cable.
OK
6 Check harness between airbag sensor assembly and spiral cable.
PREPARATION:
Release the airbag activation prevention mechanism of the
connector (on the airbag sensor assembly side) between the
airbag sensor assembly and the spiral cable (See page
DI±223).
CHECK:
For the connector (on the spiral cable side) between the airbag
sensor assembly and the spiral cable, measure the resistance
between D+ and D±.
OK:
Resistance: 1 MW or Higher
NG Repair or replace harness or connector be-
tween airbag sensor assembly and spiral cable.
OK
From the results of the above inspection, the malfunctioning part can now be considered normal.
To make sure of this, use the simulation method to check.

R14286H01001H01139
D SquibSpiral
Cable
Airbag
Sensor
Assembly
D+
(±) (+)D±
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±239
DTC B0101/14 Open in D Squib Circuit
CIRCUIT DESCRIPTION
The D squib circuit consists of the airbag sensor assembly, spiral cable and steering wheel pad.
It causes the airbag to deploy when the airbag deployment conditions are satisfied.
For details of the function of each component, see Pub. No. RM654U on page RS±2.
DTC B0101/14 is recorded when an open is detected in the D squib circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0101/14

Open circuit in D+ wire harness or D± wire harness of
squib

D squib malfunction

Spiral cable malfunction

Airbag sensor assembly malfunction
Steering wheel pad (D squib)

Spiral cable

Airbag sensor assembly

Wire harness
WIRING DIAGRAM
See page DI±234.
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI±305).
2 Check D squib circuit.
CHECK:
For the connector (on the spiral cable side) between the spiral
cable and the steering wheel pad, measure the resistance be-
tween D+ and D±.
OK:
Resistance: Below 1 W
NG Go to step 5.
OK
DI18R±23