Engine Cooling Fan Signal Low
2024-2024 Volvo EX30 Single Motor RWD
Description
The ECM detected that the engine cooling fan speed feedback signal is lower than expected for the commanded fan speed. The fan may be running slower than requested or not at all.
Symptoms
- Check Engine Light
- Engine running hotter than normal
- A/C not cooling efficiently
- Fan noise abnormal
Common Causes
- Cooling fan motor degradation
- Fan blade obstruction
- Wiring resistance in fan circuit
- Fan relay contact degradation
- Fan control module signal issue
Diagnostic Steps
- Test fan motor operation at various speeds
- Check for physical obstruction of fan
- Test fan circuit wiring resistance
- Test fan relay
- Monitor fan speed feedback signal
Repair Notes
Replace the cooling fan motor if speed output is below specification.
Related Codes
Other Powertrain Codes
- P0070Ambient Air Temperature Sensor Circuit
- P0071Ambient Air Temperature Sensor Range/Performance
- P0072Ambient Air Temperature Sensor Circuit Low
- P0073Ambient Air Temperature Sensor Circuit High
- P0115Engine Coolant Temperature (ECT) Sensor 1 Circuit
- P0116ECT Sensor 1 Circuit Range/Performance
- P0117ECT Sensor 1 Circuit Low Input
- P0118ECT Sensor 1 Circuit High Input
- P0119ECT Sensor 1 Circuit Intermittent
- P0125Insufficient Coolant Temperature for Closed Loop Fuel Control
P1481 on Other Vehicles
Common Questions
What does code P1481 mean on a 2024-2024 Volvo EX30?
P1481 stands for "Engine Cooling Fan Signal Low". The ECM detected that the engine cooling fan speed feedback signal is lower than expected for the commanded fan speed. The fan may be running slower than requested or not at all.
What are the symptoms of P1481 on a Volvo EX30?
Common symptoms of P1481 include: Check Engine Light, Engine running hotter than normal, A/C not cooling efficiently, Fan noise abnormal.
What causes P1481 on a 2024-2024 Volvo EX30?
Common causes of P1481 include: Cooling fan motor degradation, Fan blade obstruction, Wiring resistance in fan circuit, Fan relay contact degradation, Fan control module signal issue.