Body ECU Inspection
- Apply water to windshield before operating wipers. Turn wiper switch to INT position. If wiper operates in INT position, go to next step. If wiper does not operate in INT position, inspect wiper/washer system. See WIPER/WASHER SYSTEM article. If wiper/washer system is okay, check body ECU. See BODY ECU under PIN VOLTAGE TESTS. If wiper/washer is not okay, repair or replace components as necessary.
- Open any door. Open door indicator light should glow. If open door indicator light glows, see RETRIEVING TROUBLE CODES . If open door indicator light does not glow, repair or replace open door indicator light as necessary.