U041D
Invalid Data Received From Rocker Arm Control Module B
U041D is an OBD-II diagnostic trouble code meaning: Invalid Data Received From Rocker Arm Control Module B. Common causes: damaged wiring to rocker arm control module b, rocker control module b malfunction. Estimated repair cost: $56–167.
Symptoms
- Reduced engine power
- Increased fuel consumption
- Unstable operation at idle
- Check Engine light comes on
- Problems starting the engine
Causes
- Damaged wiring to rocker arm control module B
- Rocker control module B malfunction
- Problems with connectors or poor contact
- Software failures in the control module
- Module power problems
How to Fix
- Check continuity of wiring to rocker arm control module B
- Inspect connectors for damage or corrosion
- Check the power supply and ground of the module
- Scan the module for errors using diagnostic equipment
- If necessary, replace rocker arm control module B
Related codes
Error U041D by Vehicle Brand
FAQ
What does the U041D code mean?
U041D is an OBD-II diagnostic trouble code that indicates: Invalid Data Received From Rocker Arm Control Module B
What causes a U041D error code?
The most common causes of U041D include: Damaged wiring to rocker arm control module B; Rocker control module B malfunction; Problems with connectors or poor contact; Software failures in the control module.
How do I fix a U041D diagnostic trouble code?
To fix U041D: Check continuity of wiring to rocker arm control module B. Inspect connectors for damage or corrosion. Check the power supply and ground of the module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U041D?
Yes, but get it checked soon
How much does it cost to fix U041D?
The estimated repair cost for U041D is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat