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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 346 (Wiper System And Washer System) >> Diagnostic Information and Procedures >> Rear Washer System Malfunction >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.

Rear Windshield Washer Pump

  1. Install a 15 A fused jumper wire between the B+ terminal 1 and 12 V. Install a jumper wire between the ground terminal 2 and ground.
  2. Verify the G19 Rear Window Washer Pump activates.
    • If the G19 Rear Window Washer Pump does not activate. 

      Replace the G19 Rear Window Washer Pump.

    • If the G19 Rear Window Washer Pump does activate. 
  3. All OK
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