P2639 – Torque Management Feedback Signal High

Description

The ECM detects a high torque management feedback signal.

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Symptoms

  • Rough idle
  • Poor acceleration
  • Check engine light

Causes

  • Faulty sensor
  • Wiring short to power
  • ECM fault

Diagnosis

  • Test sensor
  • Inspect wiring
  • Check ECM

Repair

  • Replace sensor
  • Repair wiring

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