P0037
HO2S Heater Control Circuit Low Bank 1 Sensor 2
2006-2011 BMW 325i 3.0L I6 N52 🇩🇪
Low SeverityPowertrain
Description
The voltage in the Bank 1 Sensor 2 O2 heater circuit is lower than expected.
Symptoms
- Check Engine Light
- Poor catalyst monitoring
Common Causes
- Short to ground
- Faulty sensor
- Corroded connector
Diagnostic Steps
- Test heater voltage
- Check for shorts
- Test resistance
Repair Notes
Repair wiring or replace sensor.
Related Codes
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P0037 on Other Vehicles
Common Questions
What does code P0037 mean on a 2006-2011 BMW 325i?
P0037 stands for "HO2S Heater Control Circuit Low Bank 1 Sensor 2". The voltage in the Bank 1 Sensor 2 O2 heater circuit is lower than expected.
What are the symptoms of P0037 on a BMW 325i?
Common symptoms of P0037 include: Check Engine Light, Poor catalyst monitoring.
What causes P0037 on a 2006-2011 BMW 325i?
Common causes of P0037 include: Short to ground, Faulty sensor, Corroded connector.