1AB8651.0
Reconnect the computer and the pretensioner ignition module , then switch the ignition on
again.Erase the computer memory then switch off the ignition.Carry out a check using the
fault finding tool and, in the absence of a fault, unlock the computer
.
Destroy the
pretensioner if there has been a replacement (tool Ele. 1287).
AFTER REPAIR
Driver’s pretensioner circuit
CC : Short circuit
CO : Open circuit
CC.1 : Short circuit to 12 volts
CC.0 : Short circuit to earth
DF029
present
NOTES
Never carry out measuring operations on the trigger lines with equipment other
than the XRBAG.
None
NOTES
CO - CC
Lock the computer using the fault finding tool command.
Switch off the ignition and check whether the ignition module for the driver’s pretensioner is correctly
connected.
Disconnect the ignition module for the driver’s pretensioner and connect a dummy ignition module to
the ignition module connector.
Switch on the ignition and carry out a check using the fault finding tool.
Change the driver’s pretensioner if the fault has been memorised (fault no longer declared present).
Disconnect the computer connector and fit the 50 track B50 adaptor.
The XRBAG must be used to measure resistance on adaptor cable A . If the value obtained is not correct,
check the connections on the 50 track connector (tracks 1 and 2) and replace the wiring if necessary
If there is no evidence of a fault after these checks have been carried out, check on the air bag computer
base for the 7 shunt opening pins for the 50 track connector.
Check the condition of the computer connections
Check the condition of the 50 track connector (locking system).
The XRBAG must be used to measure resistance at point C1 (seat connector) on the driver’s pretensioner
line.
If the value obtained is not correct, replace the wiring between points C1 and C3 (seat wiring).
FAULT FINDING - INTERPRETATION OF FAULTS
WIRING
Air bags and seat belt pretensioners
SIDE
88
88-63
