P0495low severityPowertrain
Cooling Fan Speed High
on 2003 Toyota Tacoma 2.7L I4 · RWD
What this code means
The PCM has detected that the cooling fan speed is higher than expected. Excessive fan speed may indicate a control fault or sensor issue.
Symptoms
- Fan running constantly at high speed
- Excessive fan noise
- Warning lamp on
Common causes
- Faulty fan control module
- Faulty coolant temperature sensor
- Damaged wiring or connector
- Faulty PCM
Diagnostic steps
- Scan for stored codes
- Monitor fan speed and coolant temp data
- Inspect fan control wiring
- Test fan module and sensors
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Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0005
Fuel Shutoff Valve A Control Circuit/Open
P0005
Fuel Shutoff Valve A Control Circuit/Open