P050C
Cold Start Engine Coolant Temperature Performance
Generic code
Vehicle Speed and Idle Control System
High severity
Easy repair
Free on OBD DashX
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What P050C means
- Issue with ignition in the coolant temperature during cold start
Possible symptoms
- Vehicle may not shift into the highest gear at freeway speed
- The engine may show signs of overheating.
- The torque converter clutch may not engage or disengage causing the vehicle not to move
- The transmission could overheat
Possible causes
- Low engine coolant level
- Faulty Engine Coolant Temperature (ECT) sensor
- Faulty engine coolant thermostat
- Engine Coolant Temperature (ECT) sensor harness is open or shorted
- Engine Coolant Temperature (ECT) sensor circuit poor electrical connection Rusty and/or corroded Engine Coolant
- Faulty or corroded Engine Coolant Temperature wiring or connections
Related parts
- Engine Coolant Temperature Sensor: The coolant temperature sensor measures the temperature of the engine coolant. Problems lead to engine overheating
Possible solutions
- Check the ECT sensor connector with the key on and the engine off. There needs to be a steady 5 volt reference voltage and a very good ground
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P050C on OBD DashX
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