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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)
heater sensor circuit Chevy astro 2000
9 time out of 10, the heater circuit internal to the sensor has failed. Replace the sensor.
Firstly, you'll need to identify what's wrong with the sensor. If the circuitry is problematic, you'll need to replace part of the circuit to get it working well again.
02 Sensor Heater Control Circuit Low (Bank 2 Sensor 1) Shorted condition detected in the oxygen sensor heater element control feedback sense circuit
O2 sensor heater circuit malfunction, Bank 1 Sensor 1.
The air fuel sensor heater circuit is also known as a Oxygen Sensor. It's main purpose is to detect the amount of oxygen in the exhaust gas compared to the outside level of oxygen.
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
HO2S (A/F) Sensor Heater Control Circuit Low (Bank 2 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 2 sensor 1, O2 sensorReplace PCM if circuit has failed and no wiring issues present, good 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
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)
HO2S Heater Control Circuit High( and Low ) (Bank 1 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 1 sensor 1 and 2, O2 sensorsReplace PCM if circuit has failed and no wiring issues present, good O2 sensor