U0225

What it means

The ECU has lost communication with door window motor D, a smart window motor with its own bus interface. One-touch and anti-pinch operation of that window stops, and it may work only manually, if at all. Causes: loss of power or ground at the motor, a broken bus or supply wire in the door harness, a damaged door connector, or a failed motor module.

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

• Module unpowered

  high

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

• Gateway module routing CAN messages incorrectly

  low

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

• CAN terminating resistor (120 Ω) drifted out of spec

  low

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

Related help

• Full U0225 diagnosis, causes & costs
• How to read check engine light codes
• Is it safe to drive with the light on?