OBD Codes List

Diagnostic reference · P0722

P0722

Output Shaft Speed Sensor Circuit No Signal

System
Transmission (P code)
Lamp
Check Engine Light
Category
Powertrain - Transmission

What it means

P0722 means Output Shaft Speed Sensor Circuit No Signal.

Where it lives

For P0722, the sensor sits on the circuit this code reports. The description of P0722 reports a fault at the sensor.

Check these first

  • Failed output speed sensor
  • Open or shorted wiring
  • Damaged tone wheel or incorrect sensor gap
  • Corroded connector
  • Faulty TCM

What to do next

  1. Verify output shaft speed reads on a scan tool during a drive
  2. Inspect the sensor and its connector
  3. Measure sensor resistance and signal with a scope
  4. Check the tone wheel and gap
  5. Replace the sensor or repair wiring and confirm speed reads

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Updated

Generic SAE J2012 definition. Last updated 2026-08-30.