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Home >> Hummer >> 2009 >> H3 Base, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Shift Lock Control System) >> Diagnostic Information and Procedures >> DTC B2707 or B2708 >> Circuit/System Verification

Circuit/System Verification

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  1. Ignition ON, vehicle in PARK, observe the scan tool TCM TR SW parameter. The parameter should indicate PARK.
  2. Observe the scan tool Brake Switch Status parameter while pressing and releasing the brake pedal. The parameter should change between ON and OFF.
  3. Press the brake pedal, the vehicle operator should be able to move the shifter out of the PARK position.