Chevrolet P154D: Intake Air (IA) Heater Temperature Signal Circuit

Is your scanner showing Chevrolet P154D?
No worries. We'll show you what it means and how to deal with it.

Presented by
Randy Worner

Chevrolet P154D: Intake Air (IA) Heater Temperature Signal Circuit

OVERVIEW
Severity
:
High
DIY Difficulty Level
:
Advanced
Repair Cost
:
$300-$500
Can I Still Drive?
:
No

What Does The Chevrolet P154D Code Mean?

The intake air heater is commanded ON. The intake air heater battery voltage is between 6.9-16 V. DTC P154D runs continuously when the above conditions are met.

  • The glow plug control module detected an open, short to ground or short to battery on the intake air heater temperature signal circuit for greater than 650 ms.
  • The intake air heater temperature sensor value is less than -20°C (-4°F) and the intake air temperature sensor is greater than 20°C (68°F).

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

Chevrolet P154D, DTCDECODE.

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