Engine Cooling Fan Signal Low
2008-2016 Volvo XC70 3.2L I6
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
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1481 on Other Vehicles
Common Questions
What does code P1481 mean on a 2008-2016 Volvo XC70?
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 XC70?
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 2008-2016 Volvo XC70?
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.