Toyota Celica 2005 Repair Manual page 1112

DTC B0103/12
CIRCUIT DESCRIPTION
The D squib circuit consists of the airbag sensor assembly, the spiral cable and the 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.
S Short in D squib wire harness (to B+)
S D squib malfunction
B0103/12
S Spiral cable malfunction
S Airbag sensor assembly malfunction
WIRING DIAGRAM
See page DI−898.
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI−1025).
2 Check D squib wire harness.
ON
Spiral
Cable
D Squib
(−)
AB0119
H01001
H02146
OK
2005 CELICA (RM1131U)
DIAGNOSTICS
Short in D Squib Circuit (to B+)
DTC Detecting Condition
CHECK:
(a)
(b)
Airbag
Sensor
Assembly
OK:
D+
(+)
H11570
− SUPPLEMENTAL RESTRAINT SYSTEM
S Steering wheel pad (D squib)
S Spiral cable
S Airbag sensor assembly
S Instrument panel wire
Turn the ignition switch to ON.
Measure the voltage between the body ground and D+ on
the steering wheel pad (D squib) side between the airbag
sensor assembly and the steering wheel pad (D squib).
Voltage: Below 1 V
NG Go to step 5.
1111
Trouble Area
DI−911
DI6P6−23