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P0379: Timing Reference High Resolution Signal B No Pulses

System
Ignition System

What Does P0379 Mean?

P0379 is a diagnostic trouble code indicating: Timing Reference High Resolution Signal B No Pulses. This code relates to the ignition system system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

What To Do Next

  1. 1
    Find your vehicle above

    Click your make and model for real owner reports and common causes specific to your vehicle.

  2. 2
    Check for recalls

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.

  3. 3
    Get a professional diagnosis

    A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

Related Codes

P0374 Timing Reference High Resolution Signal B P0375 Timing Reference High Resolution Signal B Too Many Pulses P0376 Timing Reference High Resolution Signal B Too Few Pulses P0377 Timing Reference High Resolution Signal B Intermittent/Erratic P0378 Timing Reference High Resolution Signal C P0380 Glow Plug/Heater Circuit A P0381 Glow Plug/Heater Circuit A Low P0382 Glow Plug/Heater Circuit A High