Cooling Fan Control System
2002-2009 GMC Envoy 4.2L I6
Description
The PCM detected that the cooling fan control circuit has failed the output voltage check. The fan control relay circuit did not respond as expected when the PCM commanded the fan on.
Symptoms
- Check Engine Light
- Engine overheating
- Cooling fan not turning on
- Poor A/C performance
- Burning smell in severe cases
Common Causes
- Faulty cooling fan motor
- Failed cooling fan relay
- Wiring damage to fan circuit
- Defective cooling fan control module
- Blown fan fuse
- PCM driver failure
Diagnostic Steps
- Check cooling fan fuse(s)
- Test cooling fan relay
- Command fan on with scan tool
- Test fan motor by applying direct power
- Inspect wiring to fan motor
- Test fan control module (if equipped)
Repair Notes
Check fuse and relay first. Test fan motor with direct 12V power. Replace fan motor, relay, or control module as needed.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
P1460 on Other Vehicles
Common Questions
What does code P1460 mean on a 2002-2009 GMC Envoy?
P1460 stands for "Cooling Fan Control System". The PCM detected that the cooling fan control circuit has failed the output voltage check. The fan control relay circuit did not respond as expected when the PCM commanded the fan on.
What are the symptoms of P1460 on a GMC Envoy?
Common symptoms of P1460 include: Check Engine Light, Engine overheating, Cooling fan not turning on, Poor A/C performance, Burning smell in severe cases.
What causes P1460 on a 2002-2009 GMC Envoy?
Common causes of P1460 include: Faulty cooling fan motor, Failed cooling fan relay, Wiring damage to fan circuit, Defective cooling fan control module, Blown fan fuse, PCM driver failure.