U1073
Invalid Or Missing Data For Engine Coolant
U1073 is an OBD-II diagnostic trouble code meaning: Invalid Or Missing Data For Engine Coolant. Common causes: coolant temperature sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $6–33.
Symptoms
- Unstable engine operation
- Increased fuel consumption
- Incorrect temperature readings on the dashboard
- Check Engine light comes on
- Problems starting the engine in cold weather
Causes
- Coolant temperature sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Problems with the engine control module (ECM)
- Corroded contacts or damaged wiring
How to Fix
- Check the condition of the coolant temperature sensor
- Check the integrity of the sensor circuit and the condition of the wiring
- Clean sensor connector contacts
- Replace the coolant temperature sensor if necessary
- Check and replace engine control module (ECM) if necessary.
Related codes
FAQ
What does the U1073 code mean?
U1073 is an OBD-II diagnostic trouble code that indicates: Invalid Or Missing Data For Engine Coolant
What causes a U1073 error code?
The most common causes of U1073 include: Coolant temperature sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Problems with the engine control module (ECM).
How do I fix a U1073 diagnostic trouble code?
To fix U1073: Check the condition of the coolant temperature sensor. Check the integrity of the sensor circuit and the condition of the wiring. Clean sensor connector contacts. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1073?
Yes, but get it checked soon
How much does it cost to fix U1073?
The estimated repair cost for U1073 is $6–33. Actual cost depends on your vehicle, location, and labor rates.
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