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Home >> Cadillac >> 2007 >> CTS V >> Repair and Diagnosis >> External Pages >> Different car >> Section 571 (Wiper System And Washer System) >> Diagnostic Information and Procedures >> DTC B2697 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2009 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the headlamp washer relay.
  2. Test for less than 1.0 ohm between the ground circuit terminal G10 and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Connect a test lamp between the headlamp washer relay control circuit terminal A7 and the ground circuit terminal C6.
  4. Command the headlamp washers ON and OFF with the headlamp washer switch. The test lamp should turn ON and OFF when changing between the commanded states.
    • If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the IPM.
    • If the test lamp is always OFF, test the control circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the IPM.
  5. If all circuits test normal, test or replace the headlamp washer relay.
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