Firebird V8-350 5.7L VIN P SFI (1996)
equipped).
39.
Knowing the short to ground is in the harness, this step isolates the fault to either circuit 75 or circuit 341.
Diagnostic Aids
If the only DTC that flashes is a "History" code (DTC 33), 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 24/34 - Fasten Seatbelt Indicator Lamp
Circuit Description
The BCM provides a 12 volt output to the "Fasten Seatbelt" Indicator Lamp on the Instrument Cluster while the driver's seatbelt is unfastened (see
Attachment 12).
DTC Will Set When
The "Fasten Seatbelt" output has been detected by the BCM to be shorted to ground, or shorted to B+ for greater than 50 milliseconds.
Action Taken
DTC 24 will set. The "Fasten Seatbelt" indicator lamp will not illuminate when ignition is "ON" and the driver's seatbelt is not fastened.
DTC Will Clear When
Fault is corrected and DTC memory clearing procedure is completed.
DTC Chart Test Description
