C1989

PINPOINT TEST G295394p3: DTC C1989; PARK BRAKE APPLY AND RELEASE SWITCH CONTACTS ENERGIZED SIMULTANEOUSLY
G295394t8: CHECK PARK BRAKE APPLY SWITCH FUNCTION
1. Disconnect the EPB 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. 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 G295394t10.
No
INSTALL a new switch Pack. 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. CLEAR the DTC. TEST the system for normal operation.
No
Recheck DTC's. Contact dealer technical support for advice on possible EPB control module failure.