Diagnostic Trouble Code: B0021
Diagnostic Trouble Code Name: Passenger Side Deployment Loop
Vehicle Make: Chevrolet
Vehicle Model: Camaro (Fifth Generation)
Diagnostic Code Entered By: ZerOne
Diagnostic Code Entered On: Wed Oct 06, 2010 11:00 pm
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Diagnostic Trouble Code Description:
Center High Mounted Brake Lamp Circuit
Possible Sensor Faults
Body Control Module
Possible Related Diagnostic Trouble Codes
DTC B3884
Circuit / System Description
The brake pedal position sensor is used to sense the action of the driver application of the brake pedal. The brake pedal position sensor provides an analog voltage signal that will increase as the brake pedal is applied. The body control module (BCM) provides a low reference signal and a 5?V reference voltage to the brake pedal position sensor. When the variable signal reaches a voltage threshold indicating the brakes have been applied, the BCM will apply battery voltage to the right and left stop lamp control circuits, transmission control module (TCM), engine control module (ECM), and center high mounted stop lamp control circuit.
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