Circuit Description
When park brake input circuit 1134 to body control module (BCM) is grounded
(as when parking brake is applied), BCM will turn on brake telltale lamp by sending
a serial data message to the Instrument Panel Cluster (IPC). If vehicle is moving
greater than 10 km/h (6 mph) and park brake input to the BCM is grounded,
BCM will sound the warning chime to notify the driver parking brake is applied.
DTC Set Conditions
| • | Ignition switch in RUN position |
| • | Vehicle speed greater than 10 km/h (6 mph) |
Diagnostic Aids
| • | Verify that the parking brake is fully disengaged. |
| • | Inspect the wiring harness for damage. Check for broken or chaffed insulation. |
| • | Check for blockage preventing the parking brake from fully releasing. |
| • | If fault is suspected to be intermittent, wiggling the harness wiring
may help in locating the fault. |
B0005
