P1117low severityPowertrain
ECT Sensor Intermittent
on 2002 Ford Thunderbird 5.0L V8 · FWD
What this code means
The Engine Coolant Temperature sensor signal is intermittent or erratic. The PCM detects signal dropouts or fluctuations from the ECT sensor.
Symptoms
- Check Engine Light
- Erratic temperature gauge
- Fan cycling erratically
- Poor fuel economy
Common causes
- Loose ECT sensor connector
- Corroded wiring
- Faulty ECT sensor
- Damaged connector pins
Diagnostic steps
- Inspect ECT sensor connector
- Wiggle test wiring while monitoring reading
- Test sensor resistance
- Check wiring continuity
Repair notes
Repair connector or wiring. Replace ECT sensor if faulty.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1