Details On DTCs

• If any of the following conditions is met under condition A or condition B:

  Condition A:

• ECT sensor No. 1 detected temperature is less than 76.9 °C {170 °F}

  Condition B:

• ECT sensor No. 1 detected temperature is less than 60 °C {140 °F}

• If the following condition is implemented 3 times or more.
  • Vehicle is driven for approx. 35.9 s at a speed of 40 km/h {25 mph}, and engine coolant heat radiation amount

⁽¹⁾ is frequently at specified value W/K or more compared to specified value W/K or less.

• The actual engine coolant temperature is 18.9 °C {34 °F} higher than the estimated ambient temperature calculated by the PCM based on the values input.
• Engine coolant temperature at engine start: within specified value ⁽²⁾
• Estimated ambient air temperature: -10-45 °C {14-113 °F}
• Within 25 min after engine start
• The following DTCs are not detected:

• MAF sensor malfunction: P0100:00 and U060F:00
• ECT sensor No. 1 malfunction: P0117:00 and P0118:00
  • Fuel system malfunction: P0171:00, P0172:00, P2096:00 and P2097:00

Condition B:

• If the following condition is implemented 3 times or more.
  • Vehicle is driven for approx. 35.9 s at a speed of 40 km/h {25 mph}, and engine coolant heat radiation amount

• The actual engine coolant temperature is 18.9 °C {34 °F} higher than the estimated ambient temperature calculated by the PCM based on the values input.
• Estimated ambient air temperature: more than -10 °C {14 °F}
• The following conditions continue for 2 s or more.

• ECT sensor No. 1 detected temperature: more than 76.9 °C {170 °F}
  • ECT sensor No. 1 detected temperature: 73.9 °C {165 °F} or less

• The following DTCs are not detected:

• MAF sensor malfunction: P0100:00 and U060F:00
• ECT sensor No. 1 malfunction: P0117:00 and P0118:00
  • Fuel system malfunction: P0171:00, P0172:00, P2096:00 and P2097:00

• 2

• CMDTC self test

• Desired engine coolant temperature: intake air temperature (IAT sensor), engine speed (CKP sensor), charging efficiency
• Actual engine coolant temperature: ECT sensor No. 1

• Not applicable

• Heating is ineffective after engine is started

• ECT sensor No. 1 malfunction
• Poor assembly of ECT sensor No. 1
• Poor assembly of engine coolant hose (engine coolant passage malfunction)
• Poor engine coolant, leakage, or freezing
• Use of unspecified engine coolant
• Foreign matter caught in thermostat (foreign matter penetration in engine coolant)
• Thermostat (built-into coolant control valve) malfunction
• PCM malfunction