–
DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM
DI–629
891
Author:
Date:
2003 TOYOTA TACOMA (RM1002U)
DTC
B0108/52
Short in P Squib Circuit (to B+)
CIRCUIT DESCRIPTION
The P squib circuit consists of the airbag sensor assembly and front passenger airbag assembly.
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 B0108/52 is recorded when a B+ short is detected in the P squib circuit.
DTC No.
DTC Detecting Condition
Trouble Area
B0108/52
Short circuit in P squib wire harness (to B+)
P squib malfunction
Airbag sensor assembly malfunction
Front passenger airbag assembly (P squib)
Passenger airbag manual on–off switch
Airbag sensor assembly
Wire harness
WIRING DIAGRAM
See page DI–616.
INSPECTION PROCEDURE
1
Prepare for inspection (See step 1 on page DI–675).
2
Check passenger airbag manual on–off switch (See page RS–46).
NG
Replace passenger airbag manual on–off
switch.
OK
DI18X–04
H02146
AB0119
H11837
H11853
(–)
(+)
P–
ON
P Squib
Airbag
Sensor
Assembly
Passenger Airbag
Manual On–Off
Switch
ON
DI–630
–
DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM
892
Author:
Date:
2003 TOYOTA TACOMA (RM1002U)
3
Check P squib circuit.
PREPARATION:
Turn the passenger airbag manual on–off switch to ON.
CHECK:
(a)
Turn the ignition switch to ON.
(b)
For the connector (on the front passenger airbag assem-
bly side) between the front passenger airbag assembly
and the airbag sensor assembly, measure the voltage be-
tween the P+ and body ground.
OK:
Voltage: 0 V
NG
Repair or replace harness or connector be-
tween front passenger airbag assembly and air-
bag sensor assembly.
OK
AB0118
H01076
H02144
H10600
H11838
H14129
P+
P–
DTC B0108/52
DLC3
ON
CG
Tc
P Squib
Airbag
Sensor
Assembly
Passenger Airbag
Manual
On–Off
Switch
ON
→ ←
–
DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM
DI–631
893
Author:
Date:
2003 TOYOTA TACOMA (RM1002U)
4
Check airbag sensor assembly.
PREPARATION:
(a)
Turn the passenger airbag manual on–off switc