Chevrolet P154A: Intake Air (IA) Heater Feedback Circuit
Is your scanner showing Chevrolet P154A?
No worries. We'll show you what it means and how to deal with it.
Chevrolet P154A: Intake Air (IA) Heater Feedback Circuit
OVERVIEWWhat Does The Chevrolet P154A Code Mean?
Engine speed is greater than 600 RPM. The intake air heater is commanded ON. The battery voltage is more than 8.6 V. DTCs P154A runs continuously when the above conditions exists.
The glow plug control module detects an open, short to ground or short to battery voltage on the intake air heater digital response signal circuit for less than 1 s.
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
GM, Service Bullettin – Engineering Information – Malfunction Indicator Lamp Illuminated with DTC P154A Set.
