P03F3

What it means

B Camshaft Profile Actuator C Control Circuit High (Bank 1): the control-circuit voltage is above the expected range. This relates to engine timing; a fault can cause rough running, a no-start, or timing errors.

Is it safe to drive?

This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly.

Most likely causes

• Short to B+

  high

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

• Connector pins corroded - high contact resistance

  low

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

• Supply wire pinched against B+ source

  low

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

Related help

• Full P03F3 diagnosis, causes & costs
• How to read check engine light codes
• Is it safe to drive with the light on?