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Home >> Chevrolet >> 2013 >> Traverse LS, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Wiper System & Washer System) >> Diagnostic Information and Procedures >> Windshield Wiper System Malfunction >> Circuit/System Verification
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Circuit/System Verification

WARNING: This page is about a different car, the 2010 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, windshield wiper/washer switch in the OFF position, verify the scan tool Windshield Washer Switch parameter is Inactive.
  2. Wiper switch in the OFF position, verify the scan tool Windshield Wiper Switch parameter is Off.
  3. Wiper switch in the OFF position, verify the scan tool Windshield Wiper High Speed Switch parameter is Inactive.
  4. Wiper switch in the LO position, verify the scan tool Windshield Wiper Switch parameter is Low.
  5. Wiper switch in the HIGH position, verify the scan tool Windshield Wiper High Speed Switch parameter is Active.
  6. Wiper switch in the INT position, observe the scan tool Windshield Wiper Switch parameter while cycling the delay adjustment switch from long delay to short delay. The parameter should cycle between D1 and D5 as each delay position is selected.
    • If not the specified value, test or replace the windshield wiper/washer switch.
  7. Wiper switch in the LO position, verify the windshield wipers are cycling at the low speed.
  8. Wiper switch in the HIGH position, verify the windshield wipers are cycling at high speed.
  9. Observe the scan tool BCM 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 or the wipers do not park, refer to the Wiper Park Circuit Test .
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