Chevrolet P154B: Intake Air (IA) Heater Voltage Signal Circuit
Is your scanner showing Chevrolet P154B?
No worries. We'll show you what it means and how to deal with it.
Chevrolet P154B: Intake Air (IA) Heater Voltage Signal Circuit
OVERVIEWWhat Does The Chevrolet P154B Code Mean?
The intake air heater is commanded ON. The glow plug control module battery voltage is between 9.5-15 V. DTC P154B runs continuously when the following condition is met.
DTC will set when any of the following conditions exists:
- Intake air heater voltage is greater than 16 V while the glow plug control module voltage is between 9.5-14 V for more than 650 ms.
- Intake air heater voltage is less than 6.9 V while the glow plug control module voltage is between 9.5-16 V for more than 1000 ms.
- Intake air heater signal voltage is greater than 1.5 V after the intake air heater has been commanded OFF for more than 65 ms.
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Dorman Diesel Glow Plug Controller
>>> Standard Motor Products DIH4 Diesel Air Intake Heater
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Chevrolet P154B, DTCDECODE.
