Toyota Celica 2005 Repair Manual page 1175

DI−974
DTC B0137/71
CIRCUIT DESCRIPTION
The P/T squib LH circuit consists of the airbag sensor assembly and the seat belt pretensioner LH.
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 B0137/71 is recorded when a ground short is detected in the P/T squib LH circuit.
DTC No.
S Short in P/T squib LH wire harness (to ground)
B0137/71 S P/T squib LH malfunction
S Airbag sensor assembly malfunction
WIRING DIAGRAM
See page DI−967.
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI−1025).
2 Check floor wire.
Floor Wire
P/T Squib LH
(+)
(−)
H01016
H08392
OK
2005 CELICA (RM1131U)
DIAGNOSTICS
DTC Detecting Condition
Airbag
Sensor
Assembly
PL+
H08396
− SUPPLEMENTAL RESTRAINT SYSTEM
Short in P/T Squib LH Circuit
(to Ground)
S Seat belt pretensioner LH (P/T squib LH)
S Airbag sensor assembly
S Floor wire
CHECK:
Measure the resistance between the body ground and PL+ of
the floor wire connector on the seat belt pretensioner LH (P/T
squib LH) side.
OK:
Resistance: 1 MΩ or Higher
NG Repair or replace floor wire.
1174
Trouble Area
DI6PP−23