P0702 — Transmission Control System Electrical

P0702: Transmission Control System Electrical — what it means, the affected system and what to check before replacing parts.

Meaning, symptoms, causes and checks

Transmission Control System Electrical. Basic catalogue definition; diagnostic details have not yet been reviewed.

Affected system: Powertrain

Symptoms

  • Jerky or delayed shifts; transmission limp mode.

Possible causes

  • Damaged wiring/connectors, poor grounds or failed fuses.

What to check

  • Check TCM supply, fuses, grounds and transmission connectors.

Also written as: P0702-00, P070200, PO702 (some scan tools add the fault-type byte, e.g. -00).