P0032 HO2S Heater Control Circuit High (Bank 1, Sensor 1)
What does P0032 mean?
P0032 — HO2S Heater Control Circuit High (Bank 1, Sensor 1) (bank 1). This is an OBD-II diagnostic trouble code a scanner retrieves when your vehicle's computer detects ho2s heater control circuit high (bank 1, sensor 1) on bank 1. The level of risk depends on how the vehicle is currently running and how long you've been driving with the light on.
Common causes of P0032
- Open heater circuit wiring
- Failed oxygen sensor heater
- Corroded sensor connector
- Faulty PCM heater driver
How to fix P0032
- Check for an open heater circuit and poor connector contacts
- Measure heater circuit resistance at the sensor
- Verify the PCM heater command with a scan tool
- Replace the oxygen sensor if the heater is open
- Clean the connector and clear the code