B13C3
LF Control Unit
B13C3 is an OBD-II diagnostic trouble code meaning: LF Control Unit. Common causes: wiring harness damage, contact corrosion. Estimated repair cost: $111–333.
Symptoms
- Check Engine light comes on
- Some vehicle systems do not work (for example, lighting or airbags)
- Idling problems or other electronic faults
Causes
- Wiring harness damage
- Contact corrosion
- Internal control unit fault
- Problems with voltage in the on-board network
How to Fix
- Check connections and wiring harness
- Check the condition of the contacts on the control unit
- Scan the system for additional errors
- Check battery and generator voltage
- If necessary, replace the control unit
Related codes
FAQ
What does the B13C3 code mean?
B13C3 is an OBD-II diagnostic trouble code that indicates: LF Control Unit
What causes a B13C3 error code?
The most common causes of B13C3 include: Wiring harness damage; Contact corrosion; Internal control unit fault; Problems with voltage in the on-board network.
How do I fix a B13C3 diagnostic trouble code?
To fix B13C3: Check connections and wiring harness. Check the condition of the contacts on the control unit. Scan the system for additional errors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B13C3?
Do not drive — repair immediately
How much does it cost to fix B13C3?
The estimated repair cost for B13C3 is $111–333. Actual cost depends on your vehicle, location, and labor rates.
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