B1242
Wireless Door Lock Tuner Circuit Malfunction
B1242 is an OBD-II diagnostic trouble code meaning: Wireless Door Lock Tuner Circuit Malfunction. Common causes: open or short circuit in wiring harness, faulty wireless door lock module. Estimated repair cost: $56–167.
Symptoms
- Inability to open/close doors remotely
- Intermittent remote control operation
- The alarm goes off when you try to open the doors
Causes
- Open or short circuit in wiring harness
- Faulty wireless door lock module
- Damaged antenna
- Problems with the vehicle's electrical system (for example, low battery)
- Corrosion of contacts or connectors
How to Fix
- Check the condition of the vehicle's battery and electrical system
- Conduct a visual inspection of the wiring harness and contacts for damage.
- Scan the system for other errors
- Check the operation of the antenna and control module
- If necessary, replace faulty components
Related codes
FAQ
What does the B1242 code mean?
B1242 is an OBD-II diagnostic trouble code that indicates: Wireless Door Lock Tuner Circuit Malfunction
What causes a B1242 error code?
The most common causes of B1242 include: Open or short circuit in wiring harness; Faulty wireless door lock module; Damaged antenna; Problems with the vehicle's electrical system (for example, low battery).
How do I fix a B1242 diagnostic trouble code?
To fix B1242: Check the condition of the vehicle's battery and electrical system. Conduct a visual inspection of the wiring harness and contacts for damage.. Scan the system for other errors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1242?
Limited driving only, diagnose soon
How much does it cost to fix B1242?
The estimated repair cost for B1242 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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