H01001
H02142
H02196
D Squib
Spiral
Cable
Airbag
Sensor
Assembly
D+
(–)
(+)
D–
← →
DI–604
–
DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM
866
Author:
Date:
2003 TOYOTA TACOMA (RM1002U)
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 OPERATION on page RS–2.
DTC B0101/14 is recorded when an open is detected in the D squib circuit.
DTC No.
DTC Detecting Condition
Trouble 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–599.
INSPECTION PROCEDURE
1
Prepare for inspection (See step 1 on page DI–675).
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 Ω
NG
Go to step 5.
OK
DI18R–44
H01002
H02144 AB0119
W02044
H10600
H10602
D Squib
Spiral
Cable
Airbag
Sensor
Assembly
CG
Tc
ON
DTC B0101/14
→ ←
D+
D–
DLC3
–
DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM
DI–605
867
Author:
Date:
2003 TOYOTA TACOMA (RM1002U)
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 the ignition switch to ON, and wait at least for 20 se-
conds.
(b)
Clear the DTC stored in memory (See page DI–588).
(c)
Turn the ignition switch to LOCK, and wait at least for 20
seconds.
(d)
Turn the ignition switch to ON, and wait at least for 20 se-
conds.
(e)
Check the DTC