2000 TOYOTA CAMRY steering wheel

H01001
R14288AB0119
H04530
D SquibSpiral
Cable
Airbag
Sensor
Assembly
D+
(±) (+)
ON
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±653
888 Author: Date:
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 OPERATION 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±640.
INSPECTION PROCEDURE
1 Prepare for inspection. (See step 1 on page DI±787)
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±01

AB0069
AB0118
R13006AB0119
W02043H01002
H01131
D SquibSpiral
Cable
Airbag
Sensor
Assembly
D+
E1D±
TcACCON
or
DTC B0103/12
DLC1
" u
DI±654
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
889 Author: Date:
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±626)
(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±626)
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

R13006 AB0118 AB0019W02043
H01003
H01132
"u
Spiral
Cable
E1 TcACC ON
or
DTC B0103/12
DLC1
Airbag
Sensor
Assembly
D Squib
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±655
890 Author: Date:
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±626)
(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±626)
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 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.

AB0119
R14288H01000
H01133
D SquibSpiral
Cable
Airbag
Sensor
Assembly
D+ u"
(±) (+)ON
H01004R14288
AB0119
H08261
D SquibSpiral
Cable
(±) (+)D+
Airbag
Sensor
Assembly
ON
DI±656
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
891 Author: Date:
5 Check spiral cable.
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect the connector between the airbag sensor as-
sembly and the spiral cable.
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 Repair or replace spiral cable.
OK
6 Check harness between airbag sensor assembly and spiral cable.
CHECK:
(a) Turn ignition switch to ON.
(b) For the connector (on the spiral cable side) between the
spiral cable and airbag sensor assembly, measure the
voltage between D+ and body ground.
OK:
Voltage: 0 V
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.

H01026H06508H06509
LOCK
Airbag Sensor
Assembly
P Squib
D Squib
P/T Squib (LH)
Side Squib (LH)
P/T Squib (RH)
Side Squib (RH)Spiral
Cable
Side Airbag
Sensor (LH)
Side Airbag
Sensor (RH) Front Airbag
Sensor (LH) Front Airbag
Sensor (RH)
DI±788
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1023 Author: Date:
INSPECTION PROCEDURE
1 Prepare for inspection.
PREPARATION:
(a) Disconnect negative (±) terminal cable from the battery,
and wait at least for 90 seconds.
(b) Remove the steering wheel pad. (See page SR±11)
(c) Disconnect the connector of the front passenger airbag
assembly. (See page RS±28)
(d) Disconnect the connector of the side airbag assembly RH
and LH. (See page RS±40 and RS±52)
(e) Disconnect the connector of the seat belt pretensioner
RH and LH. (See page BO±126)
(f) Disconnect the connectors of the airbag sensor assem-
bly.
(See page RS±59)
(g) Disconnect the connector of the front airbag sensor LH
and RH. (See page RS±64)
(h) Disconnect the connector of the side airbag sensor as-
sembly RH and LH. (See page RS±69)
CAUTION:
Store the steering wheel pad with the front surface facing
upward.

AB0119H01298H01299
Airbag Sensor Assembly
ON
ACC
IG2
(+) (±)
H01249
ON
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±789
1024 Author: Date:
2 Check source voltage.
PREPARATION:
Connect negative (±) terminal cable to the battery.
CHECK:
(a) Turn ignition switch ON.
(b) Measure the voltage each of IG2 and ACC on the sensor
and operate electric system. (defogger, wiper, headlight,
heater blower, etc.)
OK:
Voltage: 10 ± 14 V
NG Check harness between battery and airbag sen-
sor assembly, and check battery and charging
system.
OK
3 Does SRS warning light turn off?
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Connect the steering wheel pad connector.
(c) Connect the front passenger airbag assembly connector.
(d) Connect the airbag sensor assembly connectors.
(e) Connect the side airbag assembly connectors.
(f) Connect the seat belt pretensioner connectors.
(g) Connect the side airbag sensor assembly connectors.
(h) Connect the front airbag sensor connectors.
(i) Turn ignition switch to ON.
CHECK:
Operate electric system (defogger, wiper, headlight, heater
blower, etc.) and check that SRS warning light goes off.
NO Check for DTCs. If a DTC is output, perform trou-
bleshooting for the DTC. If a normal code is out-
put, replace airbag sensor assembly.
YES
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.

N16045
3 4
DI±894
± DIAGNOSTICSCRUISE CONTROL SYSTEM
1129 Author: Date:
3 Check control switch.
PREPARATION:
(a) Remove steering wheel center pad.
(b) Disconnect the control switch connector.
CHECK:
Measure resistance between terminals 3 and 4 of control switch
connector when control switch is operated.
Switch positionResistance (W)
Neutral8 (No continuity)
RES/ACC50 ± 80
SET/COAST180 ± 220
CANCEL400 ± 440
NG Replace control switch.
OK
4Check harness and connector between cruise control ECU and cruise control switch,
cruise control switch and body ground (See page
IN±31).
NG Repair or replace harness or connector.
OK
5 Input signal check (See step 1).
OK Wait and see.
NG
Check and replace cruise control ECU
(See page IN±31).

N15969
35
± DIAGNOSTICSCRUISE CONTROL SYSTEM
DI±913
1148 Author: Date:
2 Check main switch continuity.
PREPARATION:
(a) Remove steering wheel center pad. (See page SR±11)
(b) Disconnect the control switch connector.
CHECK:
Check continuity between terminals 3 and 5 of control switch
connector when main switch is held ON and OFF.
OK:
Switch positionTester connectionSpecified condition
OFF3 ± 5No continuity
Hold ON3 ± 5Continuity
NG Replace control switch.
OK
3 Check harness and connector between cruise control ECU and main switch
(See page IN±31).
NG Repair or replace harness or connector.
OK
Check and replace cruise control ECU
(See page IN±31).