Wiper Park Switch Failure

Test 1:

Test 2 - 4:

SYMPTOM
WIPER PARK SWITCH FAILURE

TEST NOTE
This symptom is diagnosed using the test WIPER PARK SWITCH FAILURE.

WHEN MONITORED
With the Ignition key ON, wipers operating in the Intermittent mode, and battery voltage greater than 10 volts.

SET CONDITION
The wiper switch is in the Intermittent position and the park switch input does not go to 0 volts within 18 seconds.

POSSIBLE CAUSES
- Wiper park switch toggle closed/open
- Open wiper park switch sense circuit
- Wiper motor/wiper park connector
- BCM/wiper park switch default