Code result

P23EF

Camshaft B Position Signal Output Circuit Open Bank 2

Moderate severity

What it means

Camshaft B Position Signal Output Circuit Open Bank 2: the circuit is open. This relates to engine timing; a fault can cause rough running, a no-start, or timing errors.

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

  • Open in output wiring

    high

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

  • Pin pushed back out of connector body

    low

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

  • Cracked solder joint inside the module or sensor

    low

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

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