Interior - Airbag Warning Lamp ON, Shorted Wire Harness

SI B65 01 13
Audio, Navigation, Monitors, Alarms, SRS

January 2013
Technical Service

SUBJECT
Airbag Warning Lamp Illuminated; Shorted Wire in Front Seat Harness

MODEL
F07
F10

Produced from May 31, 2009

SITUATION
The airbag warning lamp (AWL) is illuminated. One or more of the following faults will be stored in the ACSM (Advanced Crash Safety Module) as displayed in ISTA:

930979: Side airbag, driver: short-circuit to negative

930955: CAK, driver: short-circuit to earth

930925: Seat belt tensioner, driver: short-circuit to earth

9309CA: Seat belt lock contact, front passenger: communication fault

93095B: Active head restraint, front passenger: short-circuit to negative

93095F: Active head restraint, front passenger: line coupled

93093A: Seat belt tensioner, front passenger: resistance too great

93095E: Active head restraint, front passenger: resistance too great

9309CA: Seat belt lock contact, front passenger: break in circuit

930982: Side airbag, front passenger: resistance too great

CAUSE
A short in the wiring harness in the drivers or/and passengers seat

PROCEDURE

Replacing the ACSM module will not correct these faults.

Troubleshoot the faults mentioned above by completing the linked test plan in ISTA. Follow the guidelines in the attachment for reported areas where the wiring may be shorted.

Troubleshooting hints

^ Faults that are set for a "Short-circuit wire to earth (negative)": check the wiring between the ACSM module and the airbag component for shorts to ground. If the fault is not currently present, move the seat position while monitoring the wiring.

^ Faults that are set for "Resistance too great": check the wiring and plug connections between the ACSM module and the airbag component for high resistance. If the fault is not currently present, move the seat position while monitoring the wiring.

If you find an area where the wiring is shorted or open and it is not mentioned in the attachment, provide feedback by creating a PuMA Info Only case with clear digital pictures for the different locations, with the subject line "Seat harness shorted."

This information will be added to the next update to this Service Information bulletin.

WARRANTY INFORMATION
Not applicable.














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