B3884 - Center High Mounted Stop Lamp
B3884 Possible Causes
- Faulty Center High Mounted Stop Lamp
- Center High Mounted Stop Lamp harness is open or shorted
- Center High Mounted Stop Lamp circuit poor electrical connection
- Faulty Body Control Module (BCM)
How do I fix code B3884Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
B3884 02 Center High Mounted Stop Lamp Circuit Short to Ground
B3884 04 Center High Mounted Stop Lamp Circuit Open
Cost of diagnosing the B3884 code
Labor: 1.0The cost of diagnosing the B3884 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
- Engine Light ON (or Service Engine Soon Warning Light)
B3884 DescriptionThe 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, Engine Control Module (ECM), and center high mounted stop lamp control circuit. The Diagnostic Trouble Code (DTC) sets when the BCM detects a short to voltage or an open/high resistance in the center high mounted stop lamp control circuit.
B3884 More InformationNeed more information on how to fix the B3884 code?
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