Conditions For Setting DTC

WARNING: This page is about a different variant/trim than selected.

If the PCM detects a temperature difference of more than 36°F (20°C) between the ECT and the IAT, the vehicle must be driven for 5 minutes over 15 MPH. If the IAT decreases more than 12.6°F (7°C) then a block heater is indicated and the test is aborted. If the IAT temperature does not decrease, a block heater was not detected and this DTC will set; or, the temperature difference between the ECT and the IAT at start up is more than 252°F (140°C), and the cranking time for the engine without starting the engine is more than 10 seconds.