Cadillac P1867: A/T TCC Solenoid PWM Circuit High Input (5L40-E)

Is your scanner showing Cadillac P1867?
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Presented by
Randy Worner

Cadillac P1867: A/T TCC Solenoid PWM Circuit High Input (5L40-E)

OVERVIEW
Severity
:
High
DIY Difficulty Level
:
Intermediate
Repair Cost
:
$100-$250
Can I Still Drive?
:
Yes

What Does The Cadillac P1867 Code Mean?

Engine runtime over 5 seconds, system voltage from 8-18v, HSD2 commanded “on”, and the TCM detected a short to ground on the TCC PWM solenoid valve circuit with the PWM duty cycle over 45%. The TCM provides power to the solenoid through High Side Driver 2.

What Are The Potential Causes Of The Cadillac P1867 Code?

  • TCC PWM solenoid control circuit is open or shorted to ground
  • TCC PWM solenoid is damaged, or the TCM has failed
  • Transmission internal harness assembly is open or shorted

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

Cadillac P1867, DTCDECODE.

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