AIRBAG - SEAT BELT PRETENSIONERS
Fault finding - Interpretation of faults
88C-47
88C
V3 MR-372-J84-88C000$071.mif
AIRBAG ACU4
VDIAG No.: 04
DF075
PRESENT
PASSENGER FRONT AIRBAG CIRCUIT 1
CC: Short circuit
CO: Open circuit
CC.1: Short circuit to + 12 V
CC.0: Short circuit to earth
1.DEF: Configuration
NOTESIf 1.DEF, check and modify the computer configuration.
Special notes: never carry out measuring operations on trigger lines using any tool
other than CLIP or XRBAG.
Use the 22-track adapter (Elé. 1685) when working on the computer connector.
CO - CC
NOTESNone.
Lock the computer using the command on the diagnostic tool.
Switch off the ignition and make sure the passenger's frontal airbag is properly connected (access to
connectors through the glove compartment).
Disconnect the passenger's front airbag BLUE connector and attach a dummy ignition module to the ignition
module connector.
Switch on the ignition and carry out a check using the diagnostic tool.
Replace the airbag if the fault becomes stored (fault no longer declared present).
If the value is incorrect:
Disconnect the computer and check the connector connections (tracks 2 and 13).
Fit the 22-track adapter Elé. 1685).
The CLIP or XRBAG tool must be used to measure the resistance on adapter cable B.
If the value obtained is incorrect, the wiring is faulty between the computer and the passenger airbag
connectors (C0/C4). Replace the wiring if necessary.
If the value obtained is correct, check the computer connections again.
AFTER REPAIRReconnect the computer, then switch on the ignition again.
Clear the computer memory then switch off the ignition.
Carry out the check again using the diagnostic tool and, if there are no faults, unlock
the computer. When replacing the airbag module, do not forget to reconnect the earth
on the new one.
Destroy the passenger's front airbag if it has been replaced (tool Elé. 1287).
ACU4 Vdiag04 J84 1.0
