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Home >> Cadillac >> 2012 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1087 (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 CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connectors at the following components:
    • LH hush LED
    • LH light pipe LED
    • Left rear door bezel LED
    • Left rear door switch LED
    • Driver seat LED
    • Console floor lamp
    • Front passenger seat LED
    • Security LEDs
    • RH hush LED
    • RH light pipe LED
  2. Ignition ON, with a scan tool clear the DTC and operate the vehicle within the conditions for running the DTC and verify the DTC does not reset.
    • If DTC B2625 00 sets as current, test the LED indicator dimming control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  3. Reconnect each component one at a time and verify that the DTC does not reset as current after each component is reconnected.
    • If the DTC sets as current, test or replace the component responsible for setting the DTC.
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