Parking Brake - VIN Range: G00442->G45170

PINPOINT TEST G295394p3: DTC C1989; PARK BRAKE APPLY AND RELEASE SWITCH CONTACTS ENERGIZED SIMULTANEOUSLY
G295394t8: CHECK PARK BRAKE APPLY SWITCH FUNCTION
1. Disconnect the EP13 switch pack electrical connector, TI-82.
2. Connect an ohmmeter between pins 06 and 08 of the switch.
3. Operate the switch to the Apply position.
^ Does the ohmmeter switch between open and closed circuit as the switch is operated?
Yes: GO to Pinpoint Test G295394t9.
No: INSTALL a new switch pack. Parking Brake Switch (70.35.46) CLEAR the DTC. TEST the system for normal operation.

G295394t9: CHECK PARK BRAKE RELEASE SWITCH FUNCTION
1. Connect an ohmmeter between pins 04 and 06 of the switch.
2. Operate the switch to the Release position.
^ Does the ohmmeter switch between open and closed circuit as the switch is operated?
Yes: GO to Pinpoint Test G295394tl 0.
No: INSTALL a new switch pack. Parking Brake Switch (70.35.46) CLEAR the DTC. TEST the system for normal operation.

G295394tlO: CHECK THE PARK BRAKE SWITCH FOR SHORT CIRCUIT
1. Connect an ohmmeter between pins 04 and 08 of the switch.
^ Is the resistance less than 10,000 ohms?
Yes: INSTALL a new switch pack. Parking Brake Switch (70.35.46) CLEAR the DTC. TEST the system for normal operation.
No: Recheck DTC's. Contact dealer technical support for advice on possible EP13 control module failure.