Firebird V8-350 5.7L VIN P SFI (1996)
Numbers below refer to the steps in the diagnostic table (see Attachment 13).
1.
This step checks "Fasten Seatbelt" indicator for operation with BCM disconnected, which would reveal a short to B+ in circuit 237.
2.
This step determines if there is a short to ground in the Instrument Cluster.
4.
If the Instrument Cluster is OK, this step determines if circuit 237 is shorted to ground or the BCM is defective.
7.
If there is a short to B+, this step determines if the short is in the Instrument Cluster or in circuit 237.
Diagnostic Aids
If the only DTC that flashes is a "History" code (DTC 34), the problem may be intermittent. Try performing the test shown while "wiggling" wiring and
connectors; this can often cause the fault to appear. Check for poor connections at the BCM connector, which could cause an open or an intermittent
fault. Refer to "Intermittent/History DTCs" near the beginning of this Section.
DTC 25/35 - Security L.E.D. (With UA6 Only)
Circuit Description
