P2231

DTC P2231, sometimes indicated as P223100 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the air/fuel mixture causing o2 sensor signal circuit shorted to heater circuit bank 1 sensor 1.

The most likely cause of this DTC is a shorted oxygen sensor heater circuit. The solution is to replace the oxygen sensor.

• P2231: Sensor Signal Circuit Shorted to Heater Circuit Bank 1 Sensor 1
• P2231: O2 Sensor Signal Circuit Shorted to Heater Circuit Bank 1 Sensor 1
• P2231: O2 Sensor Signal Circuit Shorted to Heater Circuit Bank 1 Sensor 1
• P2231: O2 Sensor Signal Circuit Shorted to Heater Circuit
• P2231: O2 Sensor Signal Circuit Shorted to Heater Circuit Bank 1 Sensor 1 4
• P2231: Heated oxygen sensor (HO2S) 1, bank 1 – signal circuit
• P2231 00: Heated oxygen sensor (HO2S) 1, bank 1 - signal circuit shorted to heater circuit

These codes are commonly diagnosed with error code P2231.

• P0139 [1] 02 Sensor Circuit Slow Response (Bank 1 Sensor 2)
• P0315 [1] Crankshaft Position System Variation Not Learned
• P1137 [1] Lack Of HO2S Switch - Sensor Indicates Rich
• P0101 [1] Mass or Volume Air Flow "A" Circuit Range/Performance Problem
• P0300 [1] Random/Multiple Cylinder Misfire Detected
• P1101 [1] Reverse Inhibit Control Circuit Malfunction
• P2119 [1] Throttle Actuator Control Throttle Body Range/Performance