ECT Sensor 1 Circuit High Input
2017-2020 Tesla Model 3 Standard Range Plus Single Motor RWD
Description
The ECT sensor voltage is higher than expected, indicating very low temperature or open circuit.
Symptoms
- Check Engine Light
- Rich running at operating temp
- Poor fuel economy
- Fans not coming on
Common Causes
- Open circuit
- Disconnected sensor
- Faulty sensor
- Corroded connector
Diagnostic Steps
- Test sensor resistance
- Check for open circuits
- Inspect connector
Repair Notes
Repair open circuit or replace sensor. CAUTION: Engine may overheat if fans do not activate.
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
- P0117ECT Sensor 1 Circuit Low Input
- P0119ECT Sensor 1 Circuit Intermittent
- P0125Insufficient Coolant Temperature for Closed Loop Fuel Control
- P0128Coolant Thermostat Below Regulating Temperature
P0118 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 P0118 mean on a 2017-2020 Tesla Model 3?
P0118 stands for "ECT Sensor 1 Circuit High Input". The ECT sensor voltage is higher than expected, indicating very low temperature or open circuit.
What are the symptoms of P0118 on a Tesla Model 3?
Common symptoms of P0118 include: Check Engine Light, Rich running at operating temp, Poor fuel economy, Fans not coming on.
What causes P0118 on a 2017-2020 Tesla Model 3?
Common causes of P0118 include: Open circuit, Disconnected sensor, Faulty sensor, Corroded connector.