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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
B1024low severityBody

A/C Evaporator Temperature Sensor Circuit High

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

What this code means

The HVAC module sees high voltage on the evaporator temperature sensor circuit, meaning an open or short-to-power. No exact OBD P-code equivalent (similar to P0535).

Symptoms

  • A/C not cooling properly
  • Erratic HVAC operation
  • Fan runs but weak cold air

Common causes

  • Faulty evaporator temp sensor
  • Open in sensor wiring
  • Short to power on signal wire
  • Corroded connector

Diagnostic steps

  1. Check sensor connector for damage
  2. Measure sensor resistance vs spec
  3. Check signal wire for short to power
  4. Test HVAC module reference voltage
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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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