U029F

Symptoms

• Check Engine Light Is On
• Possible problems starting the engine
• Increased fuel consumption
• The car may go into emergency mode
• Errors in the EVAP system during diagnosis

Causes

• Open or short circuit in the communication circuit
• EVAP leak control module malfunction
• Problems with module power supply (blown fuse)
• Poor contact in wiring connectors
• ECU malfunction (rare)

How to Fix

1. Check fuses related to the EVAP system
2. Inspect the wiring harness and connectors for damage.
3. Check the power and ground of the leakage control module
4. Scan the EVAP module for additional errors
5. If necessary, replace the EVAP leak control module

Related codes

Error U029F by Vehicle Brand