|P0119 – Engine Coolant Temperature (ECT) Sensor 1 Circuit Intermittent/Erratic|
|Description: Indicates the ECT circuit became intermittently open or shorted while the engine was running.
Possible Causes: • Damaged harness
• Damaged sensor
• Damaged harness connector
• Low engine coolant
Diagnostic Aids: Monitor the ECT or the CHT on a scan tool, look for sudden changes in the reading when the harness is wiggled or the sensor is tapped.