Circuit/System Verification
WARNING: This page is about a different car, the 2007 Saturn Sky. However, it is still accessible from the selected car via links, so may be relevant.
BCM and Wiper Switch Verification
- Ignition ON, observe the scan tool Windshield Wiper Switch parameter. The reading should display Off, Delay 1-5, Low/Mist/Hi while rotating the wiper switch through each delay and low speed positions.
- If one or more of the wiper delay parameters are inoperative and the wiper low speed parameter functions, replace the windshield wiper switch.
- If the low speed parameters are inoperative, perform the Windshield Wiper Switch Circuit/System Testing and/or the Windshield Wiper Switch Component Test.
- Observe the scan tool Wiper Park Switch parameter. The reading should display Active when the wipers are parked and Inactive with the wipers ON or out of the park position.
- If the Wiper Park Switch parameter is always Active or Inactive, perform the Wipers do not Park Circuit/System Testing.
- If all wiper position parameters displayed correctly on the scan tool, perform the Wiper Motor Circuit/System Testing and/or the Wiper Motor Component Test.
BCM and Wiper Motor Verification
- Command the Wiper Motor Relay On using a scan tool. The wipers should operate at low speed.
- If the wipers do not work, perform the Wiper Motor tests in Circuit/System Testing and/or Component test.
- If all the wiper motor speeds function, perform the Windshield Wiper Switch Circuit/System Testing and/or the Windshield Wiper Switch Component Test.