SRS AIR BAG DIAGNOSIS
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM(SRS)
52B-37
DTC 71: Right side-air bag module (squib) system fault 1
DTC 72: Right side-air bag module (squib) system fault 2
DTC 75: Right side-air bag module (squib) system fault power supply circuit
DTC 76: Right side-air bag module (squib) system fault ground circuit
CIRCUIT OPERATION
•
The SRS-ECU judges how severe a collision is
by detecting signals from the left and right side
impact sensors and the analog G-sensor. If the
impact is over a predetermined level, the SRS-
ECU outputs an ignition signal. At this time, if the
safing G-sensor is on, the SRS air bag will inflate.
•
The ignition signal is input to the air bag module
to inflate the air bag.
DTC SET CONDITIONS
•
These DTC are output if there is abnormal
resistance between the input terminals of the side
air bag module (RH) (squib). The most likely
causes for this code to be set are shown in the
table below:
TROUBLESHOOTING HINTS
•
Damaged wiring harnesses or connectors
•
Malfunction of the side air bag module (RH)
(squib)
•
Malfunction of the SRS-ECU
AC000810AB
Side Air Bag Module (RH) (Squib) Circuit
AC003195AD
CONNECTOR: C-45
CENTER
REINFORCEMENT
SRS-ECU
AC003205AB
CONNECTOR: D-16