Error code

OBD2 P2629

OBD2P2629
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

O2 Sensor Pumping Current Trim Circuit/Open.

Severity

moderateCan drive but may experience reduced fuel efficiency and emissions issues.

Summary

P2629 indicates an issue with the heated oxygen sensor (HO2S) on bank 2, specifically related to the pumping current trim circuit being open or not providing a signal.

Common Causes

  • Wiring issues
  • Faulty ECM

Fixes

  • Inspect and repair wiring related to the oxygen sensor.
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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