P0880 – TCM Power Input Signal

Description

The ECM detects a malfunction in the TCM power input circuit.

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Symptoms

  • Harsh shifting
  • Limp mode
  • No shift

Causes

  • Blown fuse
  • Wiring issues
  • TCM failure

Diagnosis

  • Check fuses
  • Inspect wiring
  • Verify TCM power

Repair

  • Replace fuse
  • Repair wiring
  • Replace TCM