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2016 CHEVROLET IMPALA

3.6L V6 LFXAWDAUTOMATICgas
Repairs0Labor990Torque9854Fluid15DTC1920Battery2Maintenance0Recalls0
P0037low severityPowertrain

HO2S Heater Control Circuit Low Bank 1 Sensor 2

on 2016 Chevrolet Impala 3.6L V6 LFX · 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

  1. Test heater voltage
  2. Check for shorts
  3. Test resistance

Repair notes

Repair wiring or replace sensor.

Other Powertrain codes on this vehicle

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