garajizOBD-II code · generic
U040A
Invalid Data Received From Air Conditioning Control Module
- System
- U — In-vehicle network
- Severity
- Moderate (3/5)
- Can I keep driving?
- Drive with caution
What does U040A mean?
U040A is defined as “Invalid Data Received From Air Conditioning Control Module”.
Drive gently and only as far as you need to; have it checked as soon as possible.
Related codes
- U0409Invalid Data Received From Alternative Fuel Control Module
- U040BInvalid Data Received From Exhaust Gas Recirculation Control Module A
- U0408Invalid Data Received From Throttle Actuator Control Module
- U040CInvalid Data Received From Exhaust Gas Recirculation Control Module B
- U0407Invalid Data Received From Glow Plug Control Module
- U040DInvalid Data Received From Turbocharger/Supercharger Control Module A
Look up another code
This page is general information; an exact diagnosis needs measurements and a technician’s check.