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2014 CHEVROLET SILVERADO 1500
5.3L V8 EcoTec3 L83•RWD•AUTOMATIC•gas
6 active safety recalls on this vehicle — view recalls
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Repairs421Labor499Torque4352Fluid8DTC1237Battery1Maintenance0Recalls6
P1162low severityPowertrain

HO2S Heater Circuit Bank 1 Sensor 2

on 2014 Chevrolet Silverado 1500 5.3L V8 EcoTec3 L83 · RWD

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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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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