HO2S (A/F) Sensor Heater Control Circuit Low (Bank 2 Sensor 1)
symptoms
Other than the MIL light illuminating you may not notice any performance issues.
cause
A short in the O2 sensor heater circuit or the sensor itself
A faulty O2 sensor heater
Wiring or connectors are broken or frayed to the sensor or relay
Bad PCM or ECM
The fix
Correct wiring short or loose connector found in inspection.
and/or
Replace the bank 2 sensor 1, O2 sensor
Replace PCM if circuit has failed and no wiring issues present, good O2 sensor
bank 2 sensor 1 would be the sensor on the back manifold closes to the engine.
Load circuit
Turbine sensor. For a honda accord 05 lx
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
Do you mean "What is a sensor in a circuit?" have a look at the link to the Wikipedia entry,
MAP sensor circuit low.MAP sensor circuit low.
Map sensor circuit voltage highMap sensor circuit voltage high
Camshaft position sensor circuit malfunction.Camshaft position sensor circuit malfunction.
heater sensor circuit Chevy astro 2000
P0139 02 Sensor Circuit Slow Response (Bank 1 Sensor 2)P0139 02 Sensor Circuit Slow Response (Bank 1 Sensor 2)
Power steering pressure sensor circuit performancePower steering pressure sensor circuit performance
31manifold and/or airflow meter sensor signal circuit--airflow meter/circuit--manifold pressure sensor/circuit--ecu
Downstream O2 sensor circuit volts high.Downstream O2 sensor circuit volts high.