P001F

What it means

Excessively high control voltage at the cam profile actuator (intake, profile A, bank 2). Same fault as P001C on bank 2. The cam phaser actuator adjusts intake/exhaust timing under load — a stuck or slow phaser kills mid-rpm torque and can throw correlation codes between cam and crank.

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

• Wiring shorted to battery voltage

  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 P001F diagnosis, causes & costs
• How to read check engine light codes
• Is it safe to drive with the light on?