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Home >> GMC >> 2019 >> Terrain SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 76 (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 2018 GMC Terrain and 2018 Chevrolet Equinox. 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.

    • Go to next step: If the G19 Rear Window Washer Pump does activate. 
  3. All OK
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