U041D

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

1. Check continuity of wiring to rocker arm control module B
2. Inspect connectors for damage or corrosion
3. Check the power supply and ground of the module
4. Scan the module for errors using diagnostic equipment
5. If necessary, replace rocker arm control module B

Related codes

Error U041D by Vehicle Brand