Network
generic / SAE
U02C0
Lost Communication With Active Radiator Air Flow Control Module A
The vehicle bus reports loss of communication with active radiator air flow control module A. Active grille shutters and electric cooling-fan staging on this circuit cannot be commanded.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number2 / C0
Possible causes
- Bus wiring open or shorted high
- Module without power or ground medium
- Module failed medium
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 120–1200 €
- Estimated time: 0.5–3 h
- Component: active radiator airflow module a
- Component: vehicle bus wiring
- MIL / check engine light
- drive cycle required
Sources
References
sae:J2012