Test A: Brake Switch Circuit Failure

Test A: Brake Switch Circuit Failure
Refer to Vehicle/Diagrams 42, Vehicle Dynamic Systems for schematic and connector information.

Normal Operation
When the brakes are pressed voltage is supplied from the brake switch to the generic electronic control module (GEM) to the brake lights.

Possible Causes
^ Fuse
^ Circuit open
^ Circuit shorted
^ Brake switch
^ GEM

TEST A: DTC C1446 - BRAKE SWITCH CIRCUIT FAILURE

CAUTION: Use the correct probe adapter(s) when taking measurements. Failure to use the correct probe adapter(s) may damage the connector.

A1-A2:

A2-A4: