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Home >> Pontiac >> 2009 >> Torrent Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 175 (Wiper System & Washer System) >> Diagnostic Information and Procedures >> Windshield Wiper System Malfunction >> Circuit/System Testing >> WIPER 2 Relay Control Circuit Test

WIPER 2 Relay Control Circuit Test

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2009 GMC Savana Special, 2009 GMC Savana Camper Special, 2009 GMC Savana, 2009 Chevrolet RV Cutaway, and 2009 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the X5 harness connector at the BCM.
  2. Install a 10A fused jumper wire between B+ and the WIPER relay control circuit terminal 20.
  3. Ignition ON, verify that the high speed wipers are not on.
    • If the high speed wipers are on, test the relay control circuit terminal 20 for a short to voltage. If the circuit tests normal, replace the underhood fuse block.
  4. Install a 10A fused jumper wire between the relay control circuit terminal 21 and B+. Verify the high speed wipers are on.
    • If the high speed wipers are not on, test the relay control circuit for an open/high resistance or short to ground. If the circuit tests normal replace the underhood fuse block.
  5. If all circuits test normal, replace the BCM.
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