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Home >> Cadillac >> 2007 >> STS Base, 4.6 A, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Lighting Systems) >> Diagnostic Information and Procedures >> DTC B2625 >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2008 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the X3 harness connector at the HVAC control module.
  2. Verify with a scan tool that DTC B2625 00 does not set as current.
    • If DTC B2625 00 sets as current, test the indicator dimming control circuit for a short to ground. If the circuit tests normal, replace the BCM.
  3. Ignition OFF, reconnect the X3 harness connector at the HVAC control module and verify with a scan tool that DTC B2625 00 does not set as current.
    • If DTC B2625 00 sets as current, replace the HVAC control module.
  4. If all circuits test normal, replace the BCM.
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