U1073 Ford Code - Invalid Or Missing Data For Engine Coolant
Quick Answer
Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Common causes include Faulty Engine Coolant Sensor, Engine Coolant Sensor harness is open or shorted, Engine Coolant Sensor circuit poor electrical connection. 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 Sensor, Engine Coolant Sensor harness is open or shorted, Engine Coolant Sensor circuit poor electrical connection.
- 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.
Code U1073 Ford Description
What are the Possible Causes of the DTC U1073 Ford?
- Faulty Engine Coolant Sensor
- Engine Coolant Sensor harness is open or shorted
- Engine Coolant Sensor circuit poor electrical connection
How to Fix the DTC U1073 Ford?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the U1073 Ford code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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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.
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