Error code
OBD2 P2223
OBD2P2223
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
NOx Sensor Heater Sense Circuit Low.
Severity
moderateCan be driven but may cause further damage and increase emissions.
Summary
The P2223 code indicates that there is an issue with the NOx sensor heater sense circuit on bank 2, specifically that it has a low voltage or resistance reading.
Common Causes
- Wiring short to ground
Fixes
- Repair or replace the NOx sensor heater sense circuit wiring.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- P2200NOx Sensor Circuit
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- P2202NOx Sensor Circuit Low Input
- P2203NOx Sensor Circuit High Input
- P2204NOx Sensor Circuit Intermittent Input
- P2205NOx Sensor Heater Control Circuit/Open
- P2206NOx Sensor Heater Control Circuit Low
- P2207NOx Sensor Heater Control Circuit High
- P2208NOx Sensor Heater Sense Circuit
- P2209NOx Sensor Heater Sense Circuit Range/Performance
- P2210NOx Sensor Heater Sense Circuit Low Input
- P2211NOx Sensor Heater Sense Circuit High Input