Error code

OBD2 P0723

OBD2P0723
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Output Speed Sensor Circuit Intermittent.

Severity

severeDo not drive until the fault is found and corrected.

Summary

P0723 indicates an intermittent signal issue with the output shaft speed (OSS) sensor in the transmission.

Symptoms

  • Stored trouble code and illuminated warning light
  • Speedometer not working or working intermittently
  • Engine locked into fail-safe mode
  • Severe hesitation, surging, delayed gear shifts

Common Causes

  • Damaged, burnt, shorted, disconnected, or corroded wiring and/or electrical connectors (most common)
  • Defective output shaft speed sensor
  • Faulty input shaft speed sensor (usually indicated by dedicated codes)
  • Temperature sensing element failure in the sensor

Diagnosis

  1. Inspect wiring and connectors for damage or corrosion.
  2. Check output shaft speed sensor for defects.
  3. Verify input shaft speed sensor functionality if additional codes are present.
  4. Test temperature sensing element in the sensor.

Fixes

  • Replace damaged wiring, connectors, or faulty sensors as needed.

FAQ

What does P0723 mean?

P0723 indicates an intermittent signal issue with the output shaft speed sensor in the transmission.

How serious is P0723?

It can cause severe drivability issues and potential mechanical damage to the transmission, so it should be addressed immediately.

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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