H01019
H02141
H02205
P/T Squib (RH)
Airbag
Sensor
Assembly
PR–
(+)
(–)
PR+
–
DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM
DI–637
899
Author:
Date:
2003 TOYOTA TACOMA (RM1002U)
DTC
B0131/64
Open in P/T Squib (RH) Circuit
CIRCUIT DESCRIPTION
The P/T squib circuit (RH) consists of the airbag sensor assembly and seat belt pretensioner (RH).
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 B0131/64 is recorded when an open is detected in the P/T squib (RH) circuit.
DTC No.
DTC Detecting Condition
Trouble Area
B0131/64
Open circuit in PR+ wire harness or PR– wire harness of
squib
P/T squib (RH) malfunction
Airbag sensor assembly malfunction
Seat belt pretensioner (RH)
Airbag sensor assembly
Wire harness
WIRING DIAGRAM
See page DI–633.
INSPECTION PROCEDURE
1
Prepare for inspection. (See step 1 on page DI–675)
2
Check P/T squib (RH) circuit.
CHECK:
For the connector (on the seat belt pretensioner side) between
the seat belt pretensioner (RH) and the airbag sensor assem-
bly, measure the resistance between PR+ and PR–.
OK:
Resistance: Below 1 Ω
NG
Repair or replace harness or connector be-
tween seat belt pretensioner (RH) and airbag
sensor assembly.
OK
DI55E–03
H01020
H02139 AB0119
H01083
H10600
H10621
P/T Squib (RH)
Airbag
Sensor
Assembly
PR+
PR–
DTC B0131/64
→ ←
CG
Tc
ON
DLC3
DI–638
–
DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM
900
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 PR+ and PR– of the con-
nector (on the seat belt pretensioner side) between the
seat belt pretensioner (RH) and the airbag sensor assem-
bly.
(c)
Connect negative (–) terminal cable to the battery, and
wait at least for 2 seconds.
CHECK:
(a)
Turn ignition switch to ON and wait at least for 20 se-
conds.
(b)
Clear DTC stored in memory.
(See page DI–588)
(c)
Turn ignition switch to LOCK, and wait at lea