DTC P166B Chevrolet
Intake Air (IA) Heater Over Temperature
Intake Air (IA) Heater Over Temperature
Description
The intake air heater is commanded ON The engine is running for more than 40 seconds. Engine coolant temperature is less than 60°C (140°F).
Cause and Solution
DTCs P0154A, P0154C, or P154D are not set.Battery volage is between 9-16 V.The IAH temperature is more than 80°C (176°F) for more than 3 seconds.
Video Guide
Diagnostic Info
- DTC Code: P166B
- Brand: Chevrolet