P0037low severityPowertrain
HO2S Heater Control Circuit Low Bank 1 Sensor 2
on 2018 Lincoln MKX 2.7L EcoBoost V6 · AWD
What this code means
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.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1