DTC P1121 GMC

TP Sensor Circuit High Input (Intermittent)

TP Sensor Circuit High Input (Intermittent)

Description

DTC P1639 and P1639 not set, engine started, engine runtime over 5 seconds, system voltage over 10.0v, and the PCM detected an intermittent high voltage condition (more than 4.70-4.90v) on the TP sensor signal circuit for 1 second during the CCM test.

Video Guide

Duration: PT4M20S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: P1121
  • Brand: GMC
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