Code result

P0379

Timing Reference High Resolution Signal B No Pulses

High severity

What it means

No pulses detected on timing reference signal B — open circuit, dead sensor, or air gap too wide.

Is it safe to drive?

No — stop driving

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

Most likely causes

  • Sensor or wiring open

    high

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

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