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2017 CHEVROLET SILVERADO 1500
5.3L V8 EcoTec3 L83•RWD•AUTOMATIC•gas
6 active safety recalls on this vehicle — view recalls
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Repairs421Labor499Torque4352Fluid8DTC1251Battery1Maintenance0Recalls6
B1023moderate severityBody

A/C Evaporator Temperature Sensor Circuit Low

on 2017 Chevrolet Silverado 1500 5.3L V8 EcoTec3 L83 · RWD

What this code means

The A/C evaporator temperature sensor circuit voltage is below the expected range. No direct OBD P-code equivalent exists.

Symptoms

  • Poor A/C cooling
  • Evaporator freezing
  • Compressor cycling off

Common causes

  • Shorted sensor circuit
  • Faulty evaporator temp sensor
  • Wiring short to ground
  • Connector corrosion

Diagnostic steps

  1. Read evaporator sensor data
  2. Measure sensor circuit voltage
  3. Inspect wiring for shorts
  4. Replace sensor if faulty
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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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