Error code
OBD2 P2A02
OBD2P2A02
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
O2 Sensor Circuit Range/Performance.
Severity
moderateCan drive, but efficiency and emissions may be affected.
Summary
P2A02 indicates an issue with the heated oxygen sensor (HO2S) on bank 1, specifically related to its range or performance.
Common Causes
- Intake/exhaust leak
- Fuel pressure issues
- Wiring problems
- Faulty HO2S
Fixes
- Replace the faulty heated oxygen sensor (HO2S) if identified as the cause.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- P2A00O2 Sensor Circuit Range/Performance
- P2A01O2 Sensor Circuit Range/Performance
- P2A03O2 Sensor Circuit Range/Performance
- P2A04O2 Sensor Circuit Range/Performance
- P2A05O2 Sensor Circuit Range/Performance
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0005Fuel Shutoff Valve 'A' Control Circuit/Open
- P0006Fuel Shutoff Valve 'A' Control Circuit Low
- P0007Fuel Shutoff Valve 'A' Control Circuit High