U011C
Lost Communication With Rocker Arm Control Module B
U011C is an OBD-II diagnostic trouble code meaning: Lost Communication With Rocker Arm Control Module B. Common causes: open or short circuit in the module power supply circuit, damage to the wiring harness to the module. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Deterioration of vehicle dynamics
- Increased fuel consumption
- Unstable engine operation at idle
- Engine power limitation
Causes
- Open or short circuit in the module power supply circuit
- Damage to the wiring harness to the module
- Malfunction of the rocker control module
- Connector problems or contact corrosion
- Malfunction of the main engine ECU
How to Fix
- Check the integrity of the wiring harness to the module
- Inspect connectors for corrosion or damage
- Check the module supply voltage
- Scan the system for related errors
- If necessary, replace the rocker arm control module
Related codes
Error U011C by Vehicle Brand
FAQ
What does the U011C code mean?
U011C is an OBD-II diagnostic trouble code that indicates: Lost Communication With Rocker Arm Control Module B
What causes a U011C error code?
The most common causes of U011C include: Open or short circuit in the module power supply circuit; Damage to the wiring harness to the module; Malfunction of the rocker control module; Connector problems or contact corrosion.
How do I fix a U011C diagnostic trouble code?
To fix U011C: Check the integrity of the wiring harness to the module. Inspect connectors for corrosion or damage. Check the module supply voltage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U011C?
Yes, but get it checked soon
How much does it cost to fix U011C?
The estimated repair cost for U011C is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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