Conditions for Setting the DTC
- The ECM determines the difference between the ECT and IAT at ignition ON is not within 15 °C (26 °F) of the difference recorded during a previous ignition cycle, when the enable conditions were met.
OR
- The ECM determines the IAT at ignition ON is within a calibrated range of the ECT and IAT recorded during a previous ignition cycle, but the ECT is not within 15 °C (26 °F) of the calibrated range.
- The condition exists for greater than 4 seconds or cumulative of 50 seconds.