DTC P111C GMC
Charge Air Cooler (CAC) Temperature - Intake Air Temperature (IAT) Sensor 2 Correlation
Charge Air Cooler (CAC) Temperature - Intake Air Temperature (IAT) Sensor 2 Correlation
Description
Condition 1 DTCs P0016, P007C, P0097, P0098, P0112, P0113, P0335, P0336, P0340, or P0341 are not set. Ignition has been OFF for 8 hours or more. The engine is running. OR Condition 2 DTCs P0016, P007C, P0097, P0098, P0112, P0113, P0335, P0336, P0340, or P0341 are not set. Ignition has been OFF for 8 hours or more. The engine is running. In the first 60 s of engine run time, the ECM determines the block heater is OFF. AND In the first 10 minutes of engine run time, the vehicle speed as been at least 24 km h (15 mph) for at least 5 minutes and the ECM determines there is no Sunload. This DTC runs once per key cycle when the conditions in 1 or 2 are met.
Cause and Solution
Condition 1The ECM determines the absolute temperature difference between the CAC Temperature Sensor signal and the IAT Sensor 2 signal is more than 100°C (180°F) at start up.ORCondition 2The ECM determines the absolute temperature difference between the CAC Temperature Sensor signal and the IAT Sensor 2 signal is more than 35°C (63°F), but less than or equal to 100°C (180°F) after 10 minutes of engine run time.The ECM determines the block heater if OFF.The ECM determines there is no sunload.
Video Guide
Diagnostic Info
- DTC Code: P111C
- Brand: GMC