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Heated Oxygen Sensor Control Circuit Bank1 Sensor2


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 1 sensor 2, O2 sensor

P0036 HO2S Heater Control Circuit (Bank 1 Sensor 2)

driver side after the cat.

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12y ago

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