[SOLVED] B3102 Code: Low Keyless Entry Data Link Circuit

OBD code B3102 indicates a problem with the Remote Control Door Lock Receiver (RCDLR) system.

Symptoms include the Engine Light being ON.

The issue is commonly caused by a faulty RCDLR, open/shorted RCDLR harness, poor electrical connection in the RCDLR circuit, or a faulty Body Control Module (BCM).

This is a moderate issue.

To fix it, inspect the wiring harness, connectors, and components for any damage or corrosion.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

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The vehicle displays a warning light indicating a communication error with the keyless entry system.

  • Symptoms: Service Engine Soon Warning Light ON.
  • Loss of communication with the rear HVAC control module.
  • No sound from the rear HVAC system.

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Possible triggers for fault code B3102 include issues with the keyless entry system or faulty door lock actuators.

  • B3102 can be caused by a faulty Remote Control Door Lock Receiver (RCDLR).
  • A Remote Control Door Lock Receiver (RCDLR) harness that is open or shorted.
  • A Remote Control Door Lock Receiver (RCDLR) circuit with a poor electrical connection.
  • Or a faulty Body Control Module (BCM).

To address fault code B3102, inspect and repair the circuit for the rear camera module.

  • To fix OBDII code B3102, first, review the possible causes related to this code.
  • Visually inspect the wiring harness and connectors associated with the affected circuit.
  • Check for any damaged components and ensure the connector pins are not broken, bent, pushed out, or corroded.
  • If no issues are found during the visual inspection, proceed to test the affected circuit for continuity and proper voltage levels.
  • Replace any faulty components or repair wiring as necessary.
  • Finally, clear the fault code using a scan tool and test drive the vehicle to verify that the issue has been resolved.

The repair for fault code B3102 may involve replacing the HVAC control module.

The cost to diagnose and fix OBD code B3102 depends on the estimated 1. 0hour repair time.

Labor rates usually range from $75 to $150 per hour.

The total cost will vary based on shop rates, complexity of the issue, and any additional parts or services needed.

B3102 code indicates a problem with the door lock switch circuit.

OBD code B3102 means KeyinIgnition Circuit Malfunction.

This code is triggered when the Body Control Module (BCM) detects a fault in the keyinignition circuit.

The keyinignition circuit is responsible for detecting whether the key is inserted in the ignition switch or not.

When this circuit malfunctions, it can lead to issues such as the vehicle not starting or the key not being recognized by the vehicle’s immobilizer system.

Code B3102 indicates a fault with the rear auxiliary heater control module.

OBDII code B3102 indicates a communication error with the transmission control module (TCM).

To diagnose, check TCM power and ground using a multimeter.

Use a scan tool to confirm TCM response over the CAN network.

Inspect wiring harness and connectors for damage, corrosion, or loose connections.

Ensure connector pins are intact.

Reflashing the TCM may be necessary.

If the issue persists, consider replacing the TCM.

1. What does OBD code B3102 indicate in a vehicle?

OBD code B3102 indicates an issue with the Remote Control Door Lock Receiver (RCDLR) system. Check RCDLR, harness, connections, and BCM for faults.

2. What are the common symptoms associated with OBD code B3102?

Common symptoms of OBD code B3102 include Engine Light ON, caused by issues like faulty RCDLR or BCM. Fix involves checking wiring and connectors for damage.

3. How can I diagnose and repair OBD code B3102 in my vehicle?

Diagnose OBD code B3102 by checking for a faulty RCDLR, open/shorted harness, poor electrical connection, or faulty BCM. Inspect wiring, connectors, and components for damage.

 b3102 error fault code explained

If your vehicle is displaying OBD code b3102, you may experience issues with the driver’s door key cylinder switch circuit.

This could be caused by a faulty key cylinder switch, damaged wiring, or poor connections in the circuit.

To address OBD code b3102, check the wiring harness and connectors related to the driver’s door key cylinder switch.

Inspect for any signs of damage, corrosion, or loose connections.

Test the key cylinder switch for proper operation and replace if necessary to resolve the issue.

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