Engine-Codes.com
Engine-Codes – Ford – U1073 Ford

U1073 Ford Code - Invalid Or Missing Data For Engine Coolant

Quick Answer

The U1073 Ford diagnostic trouble code (DTC) indicates that there is invalid or missing data for engine coolant in the vehicle's onboard computer system. Common causes include Faulty engine coolant temperature sensor, Wiring or connector issues related to the engine coolant temperature sensor, Low engine coolant level or coolant leak. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
U1073 Ford indicates Invalid Or Missing Data For Engine Coolant.
Common causes
Common causes include Faulty engine coolant temperature sensor, Wiring or connector issues related to the engine coolant temperature sensor, Low engine coolant level or coolant leak.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 08, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code U1073 Ford Description

The U1073 Ford diagnostic trouble code (DTC) indicates that there is invalid or missing data for engine coolant in the vehicle's onboard computer system. The engine coolant plays a crucial role in regulating the temperature of the engine to prevent overheating. When the computer system receives inaccurate or no data regarding the engine coolant, it can lead to various performance issues and potentially cause long-term damage to the engine.

OBDII Code U1073 Ford - Invalid Or Missing Data For Engine Coolant
U1073 Ford Code - Invalid Or Missing Data For Engine Coolant

Common Causes of U1073 Ford

  1. Faulty engine coolant temperature sensor.
  2. Wiring or connector issues related to the engine coolant temperature sensor.
  3. Low engine coolant level or coolant leak.
  4. ECM software or hardware malfunction.
  5. Electrical issues within the vehicle's computer system.

Symptoms of U1073 Ford

  1. Check engine light illuminated on the dashboard.
  2. Engine overheating or running hotter than normal.
  3. Poor fuel economy.
  4. Engine misfires or rough idling.
  5. Loss of power or acceleration.

How to Fix U1073 Ford

  1. Start by checking the engine coolant level and topping it up if necessary.
  2. Inspect the wiring and connectors related to the engine coolant temperature sensor for any damage or corrosion.
  3. Test the engine coolant temperature sensor using a multimeter to determine if it is faulty.
  4. If the sensor is faulty, replace it with a new one following the manufacturer's instructions.
  5. Clear the diagnostic trouble codes using an OBD-II scanner and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix U1073 Ford

The cost of repairing the U1073 Ford code can vary depending on the specific cause of the issue. In general, the cost of replacing a faulty engine coolant temperature sensor can range from $50 to $200, including parts and labor. Additional costs may apply if there are wiring or connector issues that need to be addressed. It's recommended to consult with a professional mechanic to get an accurate estimate based on your vehicle's make and model. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to research local rates for a more precise cost estimate.

What does this mean?

Tech Notes for U1073 Ford

This is typically an electrical wiring connection issue, either at the engine controller or at the sensors being monitored by the manufacturer.
It can occur if:
Someone changes a battery while the ignition switch is left on, that is, left in the RUN position.
Someone flashes/upgrades their engine controller – other modules unable to communicate with PCM during this process – this will set U1073 at a multitude of controllers on the vehicle – all false codes. Erase and carry on.

Need more information about the U1073 Ford code?

Need more information on how to fix the U1073 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1073 Ford code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about U1073 Ford Code

1. What does the OBDII code U1073 mean on a Ford vehicle?

U1073 indicates "Invalid or Missing Data for Engine Coolant," meaning the Powertrain Control Module (PCM) is not receiving proper data related to engine coolant temperature from the network.

2. What are the common symptoms of code U1073 on a Ford?

Symptoms may include erratic temperature gauge readings, poor fuel efficiency, engine overheating, or the vehicle entering limp mode.

3. What causes code U1073 to appear on a Ford vehicle?

The code can be triggered by a faulty Engine Coolant Temperature (ECT) sensor, damaged wiring or connectors, a malfunctioning PCM, or network communication issues between modules.

4. Can I drive my Ford with code U1073 active?

It is not recommended to drive with this code active, as incorrect coolant data can lead to engine overheating or other performance issues.

5. How do I diagnose code U1073 on a Ford?

Start by checking the ECT sensor and its wiring for damage or corrosion, inspect the network communication lines, and use a scan tool to monitor live data for any irregularities.

6. How do I fix code U1073 on a Ford vehicle?

Repairs may involve replacing the ECT sensor, repairing or replacing damaged wiring or connectors, updating the PCM software, or addressing communication faults between modules.

7. Can a dead battery cause the U1073 code on a Ford?

Yes, a weak or dead battery can cause network communication errors, potentially triggering the U1073 code.

8. Is code U1073 specific to the engine coolant system?

While it primarily relates to engine coolant data, the root cause may lie in broader communication issues within the vehicle’s network.

9. How much does it cost to repair the U1073 code on a Ford?

Repair costs can range from $50 to $300, depending on whether you’re replacing the ECT sensor, fixing wiring, or addressing PCM or network issues.

10. Can a PCM reset clear the U1073 code?

Resetting the PCM may temporarily clear the code, but the underlying issue must be resolved to prevent the code from returning.

Discuss the causes and fixes for U1073 Ford OBDII Code

Submit a New Comment

Code U1073 Ford comments

No comments found for this page.