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Home >> Chevrolet >> 2004 >> Impala Base, 3.4 E >> Repair and Diagnosis >> External Pages >> Different car >> Section 331 (Door System, Mirror System & Window System) >> Diagnostic Information and Procedures >> DTC B3205 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2006 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the appropriate window motor.
  2. Ignition OFF, test for less than 1.0 ohm of resistance between the control circuit terminal A and ground.
    • If greater than the specified range, test the control circuit for a short to voltage or an open/high resistance. If circuits test normal, replace the appropriate door control module.
  3. Ignition OFF, test for less than 1.0 ohm of resistance between the control circuit terminal B and ground.
    • If greater than the specified range, test the control circuit for a short to voltage or an open/high resistance. If circuits test normal, replace the appropriate door control module.
  4. Connect a test lamp between control circuit terminal A and control circuit terminal B.
  5. Command the appropriate window to the UP and DOWN positions with the power window switch. The test lamp should turn ON when commanding the UP and DOWN states.
    • If the test lamp remains OFF during either of the commands, test for a short to ground on either control circuit. If the circuits test normal, replace the appropriate door control module.
  6. If all circuits test normal, test or replace the appropriate window motor.
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