U012A

Symptoms

• The Check Engine light comes on
• Disabling stabilization systems and ABS
• Inability to activate some security features
• Intermittent problems with landing gear systems
• Errors in other related systems

Causes

• Broken or damaged wiring to the chassis control module
• Poor contact in module connectors
• Malfunction of the chassis control module itself
• Problems with module power or grounding
• Short circuit in the CAN bus circuit

How to Fix

1. Check the integrity of the wiring to the chassis control module
2. Clean the module connector contacts
3. Check the supply voltage and grounding of the module
4. Scan module memory for additional errors
5. Replace the chassis control module if necessary

Related codes

Error U012A by Vehicle Brand