Code result

P001B

A Camshaft Profile Actuator A Control Circuit Low Bank 1

Moderate severity

What it means

Low control voltage at the cam profile actuator (intake, profile A, bank 1). Typically a short to ground in the wiring or actuator coil.

Is it safe to drive?

Use caution

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 ground

    high

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

  • Actuator coil shorted internally

    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.

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