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C0277 4B

WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, verify that no other brake pedal position sensor DTCs are set.
    • If other brake pedal sensor DTCs are set, diagnosis those DTCs first.
  2. Ignition ON, perform the scan tool BPP Sensor Calibration procedure. Refer to Brake Pedal Position Sensor Calibration .
  3. Observe the scan tool BPPS Status parameter. The reading should be Learned.
    • If not the specified value, replace the brake pedal position sensor. If the DTC resets, replace the BCM.
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