Cadillac P1654: Cruise Inhibit Output Circuit Malfunction

Is your scanner showing Cadillac P1654?
No worries. We'll show you what it means and how to deal with it.

Presented by
Randy Worner

Cadillac P1654: Cruise Inhibit Output Circuit Malfunction

OVERVIEW
Severity
:
High
DIY Difficulty Level
:
Advanced
Repair Cost
:
$400-$600
Can I Still Drive?
:
Yes

What Does The Cadillac P1654 Code Mean?

Engine runtime 10 seconds, and the PCM detected an unexpected voltage condition on the Cruise Inhibit Output control circuit for 2 seconds during the test.

What Are The Potential Causes Of The Cadillac P1654 Code?

  • Cruise inhibit output control circuit is open, shorted to ground or shorted to power (B+)
  • Cruise control module has failed
  • PCM has failed
  • TSB 71-65-25 contains a repair procedure for this code

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> Twippo 372Pcs Waterproof Wire Connectors Kit
>>> GM Genuine Parts Cruise Control Module
>>> GM Genuine Parts 12633238 Engine Control Module

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

GM, 2013, Service Bullettin – Prior To Any Circuit Testing.

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