EN
P0700Severity: Medium

P0700: Transmission Control System – Malfunction

Quick answer

P0700 is a generic OBD-II trouble code that means: Transmission Control System – Malfunction. You can drive carefully for a short time, but have it fixed promptly. Ignoring it can reduce performance and damage other parts.

What does P0700 mean?

P0700 is a generic OBD-II trouble code that means: Transmission Control System – Malfunction. The engine control module (ECM) stores this code when it detects a fault related to: Transmission Control System.

Can I still drive?

Severity: Medium

You can drive carefully for a short time, but have it fixed promptly. Ignoring it can reduce performance and damage other parts.

Symptoms

  • Check engine light is on
  • Harsh or delayed gear shifts
  • Car goes into limp mode

Common causes

  • Low or degraded transmission fluid
  • Faulty transmission solenoid or valve body
  • Damaged wiring or a loose/corroded connector
  • Faulty sensor or component

How to fix it

  1. Read all stored codes and freeze-frame data with an OBD-II scanner
  2. Check the transmission fluid level and condition
  3. Inspect the wiring and connectors for damage, corrosion or looseness
  4. Test the sensor with a multimeter against the manufacturer's specification
  5. Replace the faulty component with a quality part
  6. If unsure, have a qualified mechanic diagnose it

Frequently asked questions

What does code P0700 mean?

P0700 is a generic OBD-II trouble code that means: Transmission Control System – Malfunction. The engine control module (ECM) stores this code when it detects a fault related to: Transmission Control System.

What causes code P0700?

The most common causes are: Low or degraded transmission fluid; Faulty transmission solenoid or valve body; Damaged wiring or a loose/corroded connector; Faulty sensor or component.

How do I fix code P0700?

Start with these steps: Read all stored codes and freeze-frame data with an OBD-II scanner; Check the transmission fluid level and condition; Inspect the wiring and connectors for damage, corrosion or looseness; Test the sensor with a multimeter against the manufacturer's specification.

Is it safe to drive with code P0700?

Severity: Medium. You can drive carefully for a short time, but have it fixed promptly. Ignoring it can reduce performance and damage other parts.

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