P0117
ECT Sensor 1 Circuit Low Input
2000-2005 Chevrolet Impala 3.4L V6
Moderate SeverityPowertrainGeneric (SAE)
Description
The ECT sensor voltage is lower than expected, indicating very high temperature or short.
Symptoms
- Check Engine Light
- Fans running constantly
- Incorrect high temp reading
Common Causes
- Short to ground
- Faulty sensor
- Damaged wiring
Diagnostic Steps
- Test sensor resistance
- Check for shorts
- Inspect wiring
Repair Notes
Repair short or replace sensor.
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
P0117 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 P0117 mean on a 2000-2005 Chevrolet Impala?
P0117 stands for "ECT Sensor 1 Circuit Low Input". The ECT sensor voltage is lower than expected, indicating very high temperature or short.
What are the symptoms of P0117 on a Chevrolet Impala?
Common symptoms of P0117 include: Check Engine Light, Fans running constantly, Incorrect high temp reading.
What causes P0117 on a 2000-2005 Chevrolet Impala?
Common causes of P0117 include: Short to ground, Faulty sensor, Damaged wiring.