P1114moderate severityPowertrain
ECT Sensor Circuit Intermittent Low Voltage
on 2012 Chevrolet Celta 1.0L I4 Flex VHC-E · FWD
What this code means
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.
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