Error code

OBD2 P0373

OBD2P0373
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Timing Reference High Resolution Signal 'A' Intermittent/Erratic Pulses.

Severity

moderateCan drive, but performance issues may occur and worsen over time.

Summary

P0373 indicates an issue with the high-resolution timing signal 'A', which is related to the crankshaft position sensor or engine control module (ECM). This code suggests intermittent or erratic pulses from this signal.

Common Causes

  • Poor wiring connection
  • Faulty crankshaft position sensor (CKP)
  • Engine Control Module (ECM) failure

Fixes

  • Repair or replace faulty wiring connections.
  • Replace the crankshaft position sensor (CKP).

FAQ

What does P0373 mean?

It means there's an issue with the high-resolution timing signal 'A', likely due to a problem with wiring, CKP sensor, or ECM.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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