P0DFF

What it means

Voltage on the battery charger coolant control valve control line is above the expected window. The on-board charger negotiates voltage, current and safety with the EVSE; a fault interrupts charging or limits it to AC slow-charge despite a DC fast charger being attached.

Is it safe to drive?

This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.

Most likely causes

• Wire shorted to B+

  high

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

• Coil open

  medium

  A plausible cause — test and verify before replacing parts.

• Connector pins corroded - high contact resistance

  low

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

Related help

• Full P0DFF diagnosis, causes & costs
• How to read check engine light codes
• Is it safe to drive with the light on?