B3102
Keyless Entry Data Link Circuit Low
B3102 is an OBD-II diagnostic trouble code meaning: Keyless Entry Data Link Circuit Low. Common causes: damage to wiring harness or connectors, short circuit or open circuit in the data transmission circuit. Estimated repair cost: $56–167.
Symptoms
- Key fob does not respond to commands
- It is impossible to start the engine with the START button
- The keyless entry system is unstable
Causes
- Damage to wiring harness or connectors
- Short circuit or open circuit in the data transmission circuit
- Keyless entry module malfunction
- Low key fob battery
- Circuit Grounding Problems
How to Fix
- Check the voltage in the data circuit
- Inspect the wiring harness for damage
- Check connectors for corrosion and oxidation
- Test the keyless entry module
- Replace damaged circuit components
Related codes
Error B3102 by Vehicle Brand
FAQ
What does the B3102 code mean?
B3102 is an OBD-II diagnostic trouble code that indicates: Keyless Entry Data Link Circuit Low
What causes a B3102 error code?
The most common causes of B3102 include: Damage to wiring harness or connectors; Short circuit or open circuit in the data transmission circuit; Keyless entry module malfunction; Low key fob battery.
How do I fix a B3102 diagnostic trouble code?
To fix B3102: Check the voltage in the data circuit. Inspect the wiring harness for damage. Check connectors for corrosion and oxidation. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B3102?
Limited driving only, diagnose soon
How much does it cost to fix B3102?
The estimated repair cost for B3102 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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