P232A

What it means

The transmission control module (TCM) has requested an emergency engine shutdown over the powertrain bus, typically because it has detected a condition that could damage the gearbox or driveline if engine torque were not removed (e.g. severe overheating, loss of pressure or hydraulic control).

Is it safe to drive?

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.

Most likely causes

• TCM internal protection logic triggered by gearbox condition

  high

  One of the most commonly reported causes for this code — check this first.

• Invalid or stuck shutdown message on powertrain bus

  low

  Less common, but worth ruling out after the more likely causes.

Related help

• Full P232A diagnosis, causes & costs
• How to read check engine light codes
• Is it safe to drive with the light on?