passenger side, before catalyst converter.
O2 sensor heater circuit malfunction, Bank 1 Sensor 1.
02 Sensor Heater Control Circuit Low (Bank 2 Sensor 1) Shorted condition detected in the oxygen sensor heater element control feedback sense circuit
Heated oxygen sensor heater circuit malfunction (bank 1, sensor 1): Open or short in heated oxygen sensor heater circuit Heated oxygen sensor heater malfunction (Haynes Repair Manual)
Trouble code P0137 means:O2 sensor circuit low voltage (Bank 1 Sensor 2)
HO2S Heater Control Circuit High (Bank 2 Sensor 2)symptomsOther than the MIL light illuminating you may not notice any performance issues.causeA short in the O2 sensor heater circuit or the sensor itselfA faulty O2 sensor heaterWiring or connectors are broken or frayed to the sensor or relayBad PCM or ECMThe fixCorrect wiring short or loose connector found in inspection.and/orReplace the bank 2 sensor 2, O2 sensorReplace PCM if circuit has failed and no wiring issues present, good O2 sensorP0058 HO2S Heater Control Circuit High (Bank 2 Sensor 2)P0058 HO2S Heater Control Circuit High (Bank 2 Sensor 2)
Load circuit
Bank 2, sensor 1, O2 sensor heater circuit malfunction.
Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1)symptomsOther than the MIL light illuminating you may not notice any performance issues.causeA short in the O2 sensor heater circuit or the sensor itselfA faulty O2 sensor heaterWiring or connectors are broken or frayed to the sensor or relayBad PCM or ECMThe fixCorrect wiring short or loose connector found in inspection.and/orReplace the bank 1 sensor 1 O2 sensor
Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1)symptomsOther than the MIL light illuminating you may not notice any performance issues.causeA short in the O2 sensor heater circuit or the sensor itselfA faulty O2 sensor heaterWiring or connectors are broken or frayed to the sensor or relayBad PCM or ECMThe fixCorrect wiring short or loose connector found in inspection.and/orReplace the bank 1 sensor 1 O2 sensor
P0141 - O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)
O2 Sensor Heater Circuit (Bank 1 Sensor 1)
Trouble code P1320 means: Distributor Signal Interrupt