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Home >> Hummer >> 2007 >> H2 4D Utility Pickup >> Repair and Diagnosis >> External Pages >> Different car >> Section 1280 (Shift Interlock System) >> Diagnostic Information and Procedures >> DTC B2705 >> Circuit/System Verification

Circuit/System Verification

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 ON, Clear the DTC. Observe the scan tool BCM Brake Applied Output Signal parameter. The parameter should change from ON to OFF when the brake pedal is depressed and released.
  2. Ignition ON, observe the scan tool BCM Shift Lock Command parameter. The parameter should change from ON to OFF when the brake pedal is depressed and released.
    • If the parameter does not change, replace the BCM.
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