U1073: SCP (J1850) Invalid or Missing Data for Engine Coolant
Network/CommunicationNetwork Communication
What does U1073 mean?
U1073 is a diagnostic trouble code indicating "SCP (J1850) Invalid or Missing Data for Engine Coolant". This code relates to your vehicle's network communication and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.
Symptoms you may notice
- Check engine light (MIL) illuminated on dashboard
- Engine overheating
- Temperature gauge reading high
- Heater not working properly
Estimated repair cost
Typical range in Australia (parts + labour)
$100 – $600 AUD
Common causes
- Stuck thermostat (open or closed)
- Low coolant level or coolant leak
- Failed coolant temperature sensor
- Faulty water pump
- Blocked radiator
What should you do?
This code does not name the system it came from, so we will not tell you how urgent it is or whether the car is fine to keep driving. Do not read that as minor. Have the code read against your specific make and model, where the manufacturer-specific meaning can be looked up properly.
Get a diagnosis for YOUR car
Code U1073 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.