OBD-II code · Powertrain (generic)

P0376 Timing Reference High Resolution Signal B Too Many Pulses

Timing reference signal B delivers more pulses per crank revolution than expected — typically electrical noise, missing reluctor gap, or wrong tone wheel.

Is it safe to drive with P0376?

Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.

Common causes

  • Most likelyWrong tone wheel or electrical noise

Repair at a glance

Difficulty
Hard
DIY friendly
Best left to a mechanic
Typical labour
1–4 h
Emissions test
Likely to fail
Parts involved
Camshaft Position Sensor

Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.