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2022 CHEVROLET BOLT EUV
65 kWh Single Motor FWD•FWD•AUTOMATIC•ev
4 active safety recalls on this vehicle — view recalls
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Repairs0Labor314Torque3680Fluid5DTC849Battery1Maintenance0Recalls4
P1162low severityPowertrain

HO2S Heater Circuit Bank 1 Sensor 2

on 2022 Chevrolet Bolt EUV 65 kWh Single Motor FWD · FWD

What this code means

A fault is detected in the heater circuit of the bank 1 downstream oxygen sensor. This is a GM-specific code similar to generic P0141.

Symptoms

  • Check engine light on
  • Slow sensor warm-up
  • Failed emissions test

Common causes

  • Faulty O2 sensor heater
  • Blown heater fuse
  • Wiring or connector fault
  • Poor ground

Diagnostic steps

  1. Scan and record heater circuit codes
  2. Check O2 heater fuse
  3. Measure heater resistance
  4. Inspect wiring and replace sensor
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