494 Fan Output Stage 1 - Above Limit
P0480
494 Fan output stage 1 - open circuit
Diagnosis conditions
- Engine running
- Battery voltage greater than 7 V
- Intake air temperature greater than 9 锟斤拷C
- Air conditioning switched on and off once
NOTE: The triggering wire for relays stage 1, terminal 85, is monitored
Possible fault cause
- Open circuit
- Relay faulty
- DME control module faulty
Affected terminals
Terminal IV/4
Diagnosis/troubleshooting