P0701 – Transmission Control System Range/Performance

Description

The ECM detects a general malfunction in the transmission control system.

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Symptoms

  • Harsh shifting
  • Limp mode
  • Poor acceleration

Causes

  • TCM fault
  • Wiring issues
  • Low transmission fluid

Diagnosis

  • Scan TCM data
  • Inspect wiring
  • Check fluid level

Repair

  • Repair wiring
  • Replace TCM
  • Refill fluid