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Home/DTC Codes/Chevrolet/TrailBlazer/2002-2009 4.2L I6 Vortec/P1114
P1114

ECT Sensor Circuit Intermittent Low Voltage

2002-2009 Chevrolet TrailBlazer 4.2L I6 Vortec

Moderate SeverityPowertrain

Description

The PCM detected intermittent low voltage on the Engine Coolant Temperature sensor circuit, indicating the sensor is sporadically reporting very high temperatures.

Symptoms

  • Check Engine Light
  • Intermittent cooling fan operation
  • Incorrect temperature gauge readings
  • Erratic idle

Common Causes

  • Intermittent short in ECT sensor wiring
  • Faulty ECT sensor
  • Corroded connector
  • Water intrusion

Diagnostic Steps

  1. Monitor ECT readings for erratic behavior
  2. Wiggle test ECT connector
  3. Test sensor resistance
  4. Inspect wiring for shorts

Repair Notes

Replace ECT sensor or repair wiring as needed.

Related Codes

P0115Engine Coolant Temperature (ECT) Sensor 1 CircuitP0116ECT Sensor 1 Circuit Range/PerformanceP0117ECT Sensor 1 Circuit Low InputP0118ECT Sensor 1 Circuit High InputP1115ECT Sensor Circuit Intermittent High VoltageP1115ECT Sensor Circuit Intermittent High VoltageP1115ECT Sensor Circuit Intermittent High VoltageP1115ECT Sensor Circuit Intermittent High VoltageP1115ECT Sensor Circuit Intermittent High VoltageP1115ECT Sensor Circuit Intermittent High VoltageP1115ECT Sensor Circuit Intermittent High VoltageP1115ECT Sensor Circuit Intermittent High VoltageP1115General Engine PerformanceP1115General Engine PerformanceP1115General Engine PerformanceP1115General Engine Performance

Other Powertrain Codes

P1114 on Other Vehicles

Chevrolet Astro

1995-2005 4.3L V6 Vortec

Chevrolet Avalanche

2002-2006 5.3L V8 Vortec

Chevrolet Avalanche

2002-2006 8.1L V8 Vortec

Chevrolet Avalanche

2007-2013 5.3L V8 Vortec

Chevrolet Avalanche

2007-2013 6.0L V8 Vortec

Chevrolet Aveo

2012-2018 1.6L I4

Chevrolet Beat

2018-2021 1.2L I4

Chevrolet Beretta

1990-1996 2.2L I4

Common Questions

What does code P1114 mean on a 2002-2009 Chevrolet TrailBlazer?

P1114 stands for "ECT Sensor Circuit Intermittent Low Voltage". The PCM detected intermittent low voltage on the Engine Coolant Temperature sensor circuit, indicating the sensor is sporadically reporting very high temperatures.

What are the symptoms of P1114 on a Chevrolet TrailBlazer?

Common symptoms of P1114 include: Check Engine Light, Intermittent cooling fan operation, Incorrect temperature gauge readings, Erratic idle.

What causes P1114 on a 2002-2009 Chevrolet TrailBlazer?

Common causes of P1114 include: Intermittent short in ECT sensor wiring, Faulty ECT sensor, Corroded connector, Water intrusion.

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