ECT Sensor Circuit Intermittent Low Voltage
2000-2005 Chevrolet Impala 3.4L V6
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
- Monitor ECT readings for erratic behavior
- Wiggle test ECT connector
- Test sensor resistance
- Inspect wiring for shorts
Repair Notes
Replace ECT sensor or repair wiring as needed.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
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 2000-2005 Chevrolet Impala?
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 Impala?
Common symptoms of P1114 include: Check Engine Light, Intermittent cooling fan operation, Incorrect temperature gauge readings, Erratic idle.
What causes P1114 on a 2000-2005 Chevrolet Impala?
Common causes of P1114 include: Intermittent short in ECT sensor wiring, Faulty ECT sensor, Corroded connector, Water intrusion.