Keyless Entry Data Link Circuit Low
Table of contents
B3102 GMC Possible Causes
- Faulty Remote Control Door Lock Receiver (RCDLR)
- Remote Control Door Lock Receiver (RCDLR) harness is open or shorted
- Remote Control Door Lock Receiver (RCDLR) circuit poor electrical connection
- Faulty Body Control Module (BCM)
How do I fix code B3102 GMC?
Check 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.
Cost of diagnosing the B3102 GMC code
The cost of diagnosing the B3102 GMC 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.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B3102 GMC Description
The Remote Control Door Lock Receiver (RCDLR) communicates with the Body Control Module (BCM) through the keyless entry serial data circuit. When any button on the keyless entry transmitter is pressed, the transmitter sends a signal to the RCDLR. The RCDLR sends a lock, unlock, rear release, or panic alarm request to the BCM, depending on which button is pressed on the transmitter. The BCM receives the message and performs the appropriate function. The BCM also uses the keyless entry serial data circuit in order to communicate with the RCDLR when programming transmitters. The Diagnostic Trouble Code (DTC) sets when the keyless entry serial data circuit is shorted to ground.