TOYOTA CAMRY 1999 Service Repair Manual

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

AB0118
R13006AB0069
AB0119W02044
H01002
H01140
D SquibSpiral
CableAirbag
Sensor
Assembly
E1TcACCON
or
DTC B0101/14 DLC1"u
D+D±
DI±240
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
3 Check airbag sensor assembly.
PREPARATION:
(a) Connect the connector to the airbag sensor assembly.
(b) Using a service wire, connect D+ and D± of the connector
(on the spiral cable side) between the spiral cable and the
steering wheel pad.
(c) Connect negative (±) terminal cable to the battery, and
wait at least for 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
(b) Clear DTC stored in memory (See page DI±223).
(c) Turn ignition switch to LOCK, and wait at least for 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
(e) Check DTC (See page DI±223).
OK:
DTC B0101/14 is not output.
HINT:
Codes other than code B0101/14 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK

W02044
H01003AB0118
R13006AB0119H01141
"u D Squib
Spiral
CableAirbag
Sensor
Assembly
E1TcACCON
or
DTC B0101/14 DLC1
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±241
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 ACC or ON, and wait at least for 20
seconds.
(b) Clear DTC stored in memory (See page DI±223).
(c) Turn ignition switch to LOCK, and wait at least for 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
(e) Check DTC (See page DI±223).
OK:
DTC B0101/14 is not output.
HINT:
Codes other than code B0101/14 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.

R14286H01000H01142
D SquibAirbag
Sensor
Assembly
D+ u"
D± Spiral
Cable
H01004R14286H01143
D SquibSpiral
Cable
Airbag
Sensor
Assembly
D+
(±)
(+)D±
DI±242
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
5 Check spiral cable.
PREPARATION:
Disconnect the connector between the airbag sensor assembly
and the spiral cable.
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 Repair or replace spiral cable.
OK
6 Check harness between airbag sensor assembly and spiral cable.
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: Below 1 W
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.

H01001R14301H01126
D SquibSpiral
Cable
Airbag
Sensor
Assembly
D+
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±243
DTC B0102/11 Short in D Squib Circuit (to Ground)
CIRCUIT DESCRIPTION
The D squib circuit consists of the airbag sensor assembly, spiral cable and steering wheel pad.
It causes the SRS to deploy when the SRS deployment conditions are satisfied.
For details of the function of each component, see Pub. No. RM654U on page RS±2.
DTC B0102/11 is recorded when a ground short is detected in the D squib circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0102/11

Short circuit in D squib wire harness (to ground)

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 body ground.
OK:
Resistance: 1 MW or Higher
NG Go to step 5.
OK
DI4L2±05

H01002W01933
AB0118
R13006AB0069
AB0118
W02042H01127
D SquibSpiral
Cable
Airbag
Sensor
Assembly
D+
E1D±
TcACC ON
or
DTC B0102/11 DLC1"u
DI±244
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
3 Check airbag sensor assembly.
PREPARATION:
(a) Connect the connector to the airbag sensor assembly.
(b) Using a service wire, connect D+ and D± of the connector
(on the spiral cable side) between the spiral cable and the
steering wheel pad.
(c) Connect negative (±) terminal cable to the battery, and
wait at least for 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
(b) Clear DTC stored in memory (See step 5 on page
DI±223).
(c) Turn ignition switch to LOCK, and wait at least for 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
(e) Check DTC (See page DI±223).
OK:
DTC B0102/11 is not output.
HINT:
Codes other than code B0102/11 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK

H01003AB0118
R13006AB0119
W02042H01128
D SquibSpiral
Cable
Airbag
Sensor
Assembly
E1Tc ACC ON
or
DTC B0102/11 DLC1" u
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±245
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 ACC or ON, and wait at least for 20
seconds.
(b) Clear DTC stored in memory (See step 5 on page
DI±223).
(c) Turn ignition switch to LOCK, and wait at least for 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
(e) Check DTC (See page DI±223).
OK:
DTC B0102/11 is not output.
HINT:
Codes other than code B0102/11 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. If the malfunctioning part can not be
detected by the simulation method, replace all SRS components including the wire harness.

R14301H01000H01129
D SquibSpiral
Cable
Airbag
Sensor
Assembly
D+
u"
(±) (+)
R14301H01004H06304
D SquibSpiral
Cable
(±) (+)
Airbag
Sensor
Assembly
D+
DI±246
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
5 Check spiral cable.
PREPARATION:
Disconnect the connector between the airbag sensor assembly
and the spiral cable.
CHECK:
For the connector (on the spiral cable side) between the steer-
ing wheel pad and the spiral cable, measure the resistance be-
tween D+ and body ground.
OK:
Resistance: 1 MW or Higher
NG Repair or replace spiral cable.
OK
6 Check harness between airbag sensor assembly and spiral cable.
CHECK:
For the connector (on the spiral cable side) between the spiral
cable and airbag sensor assembly, measure the resistance be-
tween D+ and body ground.
OK:
Resistance: 1 MW or Higher
NG Repair or replace harness between airbag sen-
sor 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. If the malfunctioning part can not be
detected by the simulation method, replace all SRS components including the wire harness.

H01001
R14288AB0119
H04530
D SquibSpiral
Cable
Airbag
Sensor
Assembly
D+
(±) (+)
ON
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±247
DTC B0103/12 Short in D Squib Circuit (to B+)
CIRCUIT DESCRIPTION
The D squib circuit consists of the airbag sensor assembly, spiral cable and steering wheel pad.
It causes the SRS to deploy when the SRS deployment conditions are satisfied.
For details of the function of each component, see Pub. No. RM654U on page RS±2.
DTC B0103/12 is recorded when a B+ short is detected in the D squib circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0103/12

Short circuit in D squib wire harness (to B+)

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:
(a) Turn ignition switch to ON.
(b) For the connector (on the spiral cable side) between the
spiral cable and the steering wheel pad, measure the volt-
age between D+ and body ground.
OK:
Voltage: 0 V
NG Go to step 5.
OK
DI4L3±05

AB0069
AB0118
R13006AB0119
W02043H01002
H01131
D SquibSpiral
Cable
Airbag
Sensor
Assembly
D+
E1D±
TcACCON
or
DTC B0103/12
DLC1
" u
DI±248
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
3 Check airbag sensor assembly.
PREPARATION:
(a) Connect the connector to the airbag sensor assembly.
(b) Using a service wire, connect D+ and D± of the connector
(on the spiral cable side) between the spiral cable and the
steering wheel pad.
(c) Connect negative (±) terminal cable to the battery, and
wait at least for 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
(b) Clear DTC stored in memory (See step 5 on page
DI±223).
(c) Turn ignition switch to LOCK, and wait at least for 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
(e) Check DTC (See page DI±223).
OK:
DTC B0103/12 is not output.
HINT:
Codes other than code B0103/12 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK