DTC P1281: Engine Is Cold Too Long

NOTE: Engine coolant temperature is monitored with ignition is on and engine is running. DTC may be stored in Powertrain Control Module (PCM) if engine coolant temperature does not reach 176°F (80°C) after vehicle has been driven for 20 minutes. Possible causes are; defective thermostat or engine cooling system.

Start engine and drive vehicle for at least 20 minutes. Using scan tool, read engine coolant temperature. If engine coolant temperature is at least 176°F (80°C), test is complete. If engine coolant temperature is not at least 176°F (80°C), check thermostat and cooling system for probable causes.