P0119moderate severityPowertrain
ECT Sensor 1 Circuit Intermittent
on 2026 Tesla Model S Plaid Tri Motor AWD · AWD
What this code means
The ECT sensor signal is intermittent.
Symptoms
- Check Engine Light (intermittent)
- Erratic temp gauge
- Fan cycling issues
Common causes
- Loose connector
- Damaged wiring
- Intermittent sensor failure
Diagnostic steps
- Wiggle test
- Monitor ECT signal
- Inspect connector
Repair notes
Repair connector or wiring.
🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Bluetooth code reader (~$25)
Veepeak OBDCheck BLE →
Pairs with your phone — reads and clears codes, live data.
Serious DIY (~$100)
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
Shop-grade tablet (~$300+)
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
As an Amazon Associate, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.
Other Powertrain codes on this vehicle
P0070
Ambient Air Temperature Sensor Circuit
P0071
Ambient Air Temperature Sensor Range/Performance
P0072
Ambient Air Temperature Sensor Circuit Low
P0073
Ambient Air Temperature Sensor Circuit High
P0115
Engine Coolant Temperature (ECT) Sensor 1 Circuit
P0116
ECT Sensor 1 Circuit Range/Performance
P0117
ECT Sensor 1 Circuit Low Input
P0118
ECT Sensor 1 Circuit High Input
P0125
Insufficient Coolant Temperature for Closed Loop Fuel Control
P0128
Coolant Thermostat Below Regulating Temperature