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Home >> Saturn >> 2007 >> Sky Base, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 39 (Keyless Entry System And Remote Functions) >> Diagnostic Information and Procedures >> DTC B3103 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2007 Pontiac Montana SV6, 2007 Chevrolet Uplander, and 2007 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the RCDLR.
  2. Ignition ON, verify that a test lamp does not illuminate between the keyless entry serial data circuit and ground.
    • If the test lamp does illuminate, test the keyless entry serial data circuit for a short to voltage. If the circuit tests normal, replace the BCM.
  3. If all circuits test normal, test or replace the RCDLR.
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