ECT Sensor 1 Circuit Low Input
2017-2020 Tesla Model 3 Standard Range Plus Single Motor RWD
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
- P0070Ambient Air Temperature Sensor Circuit
- P0071Ambient Air Temperature Sensor Range/Performance
- P0072Ambient Air Temperature Sensor Circuit Low
- P0073Ambient Air Temperature Sensor Circuit High
- P0115Engine Coolant Temperature (ECT) Sensor 1 Circuit
- P0116ECT Sensor 1 Circuit Range/Performance
- P0118ECT Sensor 1 Circuit High Input
- P0119ECT Sensor 1 Circuit Intermittent
- P0125Insufficient Coolant Temperature for Closed Loop Fuel Control
- P0128Coolant Thermostat Below Regulating Temperature
P0117 on Other Vehicles
Tesla Cybertruck
2024-2024 Cyberbeast Tri Motor AWD
Tesla Cybertruck
2024-2024 Dual Motor AWD
Tesla Cybertruck
2024-2024 Single Motor RWD
Tesla Model 3
2017-2020 Long Range Dual Motor AWD
Tesla Model 3
2017-2020 Performance Dual Motor AWD
Tesla Model 3
2021-2024 Long Range Dual Motor AWD
Tesla Model 3
2021-2024 Performance Dual Motor AWD
Tesla Model 3
2021-2024 Standard Range Single Motor RWD
Common Questions
What does code P0117 mean on a 2017-2020 Tesla Model 3?
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 Tesla Model 3?
Common symptoms of P0117 include: Check Engine Light, Fans running constantly, Incorrect high temp reading.
What causes P0117 on a 2017-2020 Tesla Model 3?
Common causes of P0117 include: Short to ground, Faulty sensor, Damaged wiring.