DTC 024

Diagnostic Chart:

Wiring Diagram:

CIRCUIT DESCRIPTION
The Body Control Module (BCM) provides a 12 volt output to the fasten seatbelt indicator lamp on the instrument cluster while the driver's seatbelt is unfastened.

CONDITIONS FOR SETTING THE DTC
The fasten seatbelt output has been detected by the BCM to be shorted to the ground, or shorted to B+ for greater than 50 milliseconds.

ACTION TAKEN WHEN THE DTC SETS
^ DTC 24 will set.
^ The fasten seatbelt indicator lamp will not illuminate when the ignition is in the ON position and the driver's seatbelt is not fastened.

CONDITIONS FOR CLEARING THE MIL/DTC
The fault is corrected and the DTC memory clearing procedure is completed.

DIAGNOSTIC AIDS
If the only DTC that flashes is a history code (DTC 32), the problem may be intermittent. Perform the test shown while wiggling" the wiring and connectors. This can often cause the fault to appear. Test for poor connections at the BCM connector, which could cause an open or an intermittent fault. Refer to Intermittent/History DTCs.

TEST DESCRIPTION
The number(s) below refer to the step number(s) on the diagnostic table.
1. This step tests the fasten seatbelt indicator for operation with the Body Control Module (BCM) disconnected, which would reveal a short to B+ in CKT 234.
2. This step determines if there is a short to the ground in the instrument cluster.
4. If the instrument cluster is OK, this step determines if CKT 234 is shorted to the ground or if 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 CKT 234.