Category: OBDii Powertrain Codes

P2252 Oxygen (O2) Sensor Negative Current Control Circuit Low (Bank 1 – Sensor 1) OBD Code: System: Subsystem:  P2252 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Oxygen (O2) Sensor Negative Current Control Circuit Low (Bank 1 – Sensor 1) Location: Analysis: Possible Causes:  Oxygen Sensor – Bank 1 – Sensor 1  End of…

P2253 Oxygen (O2) Sensor Negative Current Control Circuit High (Bank 1 – Sensor 1) OBD Code: System: Subsystem:  P2253 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Oxygen (O2) Sensor Negative Current Control Circuit High (Bank 1 – Sensor 1) Location: Analysis: Possible Causes:  Oxygen Sensor – Bank 1 – Sensor 1  End of…

P2254 Oxygen (O2) Sensor Negative Current Control Circuit / Open (Bank 2 – Sensor 1) Possible causes – Rear Air/Fuel Ratio Sensor Bank 2 Sensor 1 harness is open or shorted– Rear Air/Fuel Ratio Sensor Bank 2 Sensor 1 circuit poor electrical connection– Faulty Rear Air/Fuel Ratio Sensor Bank 2 Sensor 1 Symptoms – Engine…

P2255 Oxygen (O2) Sensor Negative Current Control Circuit Low (Bank 2 – Sensor 1) OBD Code: System: Subsystem:  P2255 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Oxygen (O2) Sensor Negative Current Control Circuit Low (Bank 2 – Sensor 1) Location: Analysis: Possible Causes:  Oxygen Sensor – Bank 2 – Sensor 1  End of…

P2246 Oxygen (O2) Sensor Reference Voltage Circuit High (Bank 1 – Sensor 1) OBD Code: System: Subsystem:  P2246 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Oxygen (O2) Sensor Reference Voltage Circuit High (Bank 1 – Sensor 1) Location: Analysis: Possible Causes:  Oxygen Sensor – Bank 1 – Sensor 1  End of Range –…

P2247 Oxygen (O2) Sensor Reference Voltage Circuit / Open (Bank 2 – Sensor 1) OBD Code: System: Subsystem:  P2247 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Oxygen (O2) Sensor Reference Voltage Circuit / Open (Bank 2 – Sensor 1) Location: Analysis: Possible Causes:  Oxygen Sensor – Bank 2 – Sensor 1  Open Circuit…

P2248 Oxygen (O2) Sensor Reference Voltage Performance (Bank 2 – Sensor 1) OBD Code: System: Subsystem:  P2248 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Oxygen (O2) Sensor Reference Voltage Performance (Bank 2 – Sensor 1) Location: Analysis: Possible Causes:  Oxygen Sensor – Bank 2 – Sensor 1     Tech description:

P2249 Oxygen (O2) Sensor Reference Voltage Circuit Low (Bank 2 – Sensor 1) OBD Code: System: Subsystem:  P2249 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Oxygen (O2) Sensor Reference Voltage Circuit Low (Bank 2 – Sensor 1) Location: Analysis: Possible Causes:  Oxygen Sensor – Bank 2 – Sensor 1  End of Range –…

P2250 Oxygen (O2) Sensor Reference Voltage Circuit High (Bank 2 – Sensor 1) OBD Code: System: Subsystem:  P2250 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Oxygen (O2) Sensor Reference Voltage Circuit High (Bank 2 – Sensor 1) Location: Analysis: Possible Causes:  Oxygen Sensor – Bank 2 – Sensor 1  End of Range –…

P2241 Oxygen (O2) Sensor Positive Current Control Circuit Low (Bank 2 – Sensor 1) OBD Code: System: Subsystem:  P2241 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Oxygen (O2) Sensor Positive Current Control Circuit Low (Bank 2 – Sensor 1) Location: Analysis: Possible Causes:  Oxygen Sensor – Bank 2 – Sensor 1  End of…

P2242 Oxygen (O2) Sensor Positive Current Control Circuit High (Bank 2 – Sensor 1) OBD Code: System: Subsystem:  P2242 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Oxygen (O2) Sensor Positive Current Control Circuit High (Bank 2 – Sensor 1) Location: Analysis: Possible Causes:  Oxygen Sensor – Bank 2 – Sensor 1  End of…

P2243 Oxygen (O2) Sensor Reference Voltage Circuit / Open (Bank 1 – Sensor 1) Possible causes – Faulty Heated Oxygen Sensor Bank 1 Sensor 1– Heated Oxygen Sensor Bank 1 Sensor 1 harness is open or shorted– Heated Oxygen Sensor Bank 1 Sensor 1 circuit poor electrical connection Symptoms – Engine Light ON (or Service…

P2244 Oxygen (O2) Sensor Reference Voltage Performance (Bank 1 – Sensor 1) OBD Code: System: Subsystem:  P2244 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Oxygen (O2) Sensor Reference Voltage Performance (Bank 1 – Sensor 1) Location: Analysis: Possible Causes:  Oxygen Sensor – Bank 1 – Sensor 1     Tech description:

P2245 Oxygen (O2) Sensor Reference Voltage Circuit Low (Bank 1 – Sensor 1) OBD Code: System: Subsystem:  P2245 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Oxygen (O2) Sensor Reference Voltage Circuit Low (Bank 1 – Sensor 1) Location: Analysis: Possible Causes:  Oxygen Sensor – Bank 1 – Sensor 1  End of Range –…

P2240 Oxygen (O2) Sensor Positive Current Control Circuit / Open (Bank 2 – Sensor 1) Possible causes – Air/Fuel Ratio Sensor Bank 2 harness is open or shorted – Air/Fuel Ratio Sensor Bank 2 circuit poor electrical connection – Faulty Air/Fuel Ratio Sensor Bank 2 – Inappropriate fuel pressure – Faulty fuel injectors – Intake…

P2236 Oxygen (O2) Sensor Signal Circuit Shorted to Heater Circuit (Bank 2 – Sensor 3) OBD Code: System: Subsystem:  P2236 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Oxygen (O2) Sensor Signal Circuit Shorted to Heater Circuit (Bank 2 – Sensor 3) Location: Analysis: Possible Causes:  Oxygen Sensor – Bank 2 – Sensor  Short…

P2237 Oxygen (O2) Sensor Positive Current Control Circuit / Open (Bank 1 – Sensor 1) Possible causes – Faulty Heated Oxygen Sensor Bank 1 Sensor 1– Heated Oxygen Sensor Bank 1 Sensor 1 harness is open or shorted– Heated Oxygen Sensor Bank 1 Sensor 1 circuit poor electrical connection Symptoms – Engine Light ON (or…

P2238 Oxygen (O2) Sensor Positive Current Control Circuit Low (Bank 1 – Sensor 1) OBD Code: System: Subsystem:  P2238 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Oxygen (O2) Sensor Positive Current Control Circuit Low (Bank 1 – Sensor 1) Location: Analysis: Possible Causes:  Oxygen Sensor – Bank 1 – Sensor 1  End of…

P2239 O2 Sensor Positive Current Control Circuit High Bank 1 Sensor 1 P2239 Information for specific makes

P2239 Oxygen (O2) Sensor Positive Current Control Circuit High (Bank 1 – Sensor 1) OBD Code: System: Subsystem:  P2239 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Oxygen (O2) Sensor Positive Current Control Circuit High (Bank 1 – Sensor 1) Location: Analysis: Possible Causes:  Oxygen Sensor – Bank 1 – Sensor 1  End of…