U1073 Mercury 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 Mercury 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 Mercury Description
What are the Possible Causes of the DTC U1073 Mercury?
- 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 Mercury?
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 Mercury 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.
Need more information about the U1073 Mercury code?
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Need Help with the Code?
Get the U1073 Mercury code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about U1073 Mercury Code
1. What are the common symptoms of OBDII code U1073 in a Mercury vehicle?
- Common symptoms include engine overheating, erratic temperature gauge readings, and potential stalling or rough idle.
2. What can cause the OBDII code U1073 related to invalid or missing data for engine coolant in a Mercury?
- Possible causes may include a faulty engine coolant temperature sensor, issues with the coolant system, wiring problems, or a malfunctioning powertrain control module (PCM).
3. How can I diagnose the OBDII code U1073 in my Mercury vehicle?
- Diagnosing this code typically involves checking the engine coolant level, inspecting the coolant temperature sensor and its wiring, and using a diagnostic scanner to read live data from the PCM.
4. Can driving with the OBDII code U1073 in a Mercury cause further damage to the vehicle?
- Driving with this code may lead to engine overheating, which can potentially cause severe damage to the engine if not addressed promptly.
5. What are some repair tips for fixing the OBDII code U1073 in a Mercury?
- Repair tips may include replacing the engine coolant temperature sensor, checking and refilling the coolant level, inspecting and repairing any damaged wiring, and resetting the fault code with a diagnostic scanner after repairs.
6. Is it safe to continue driving my Mercury with the U1073 code if the engine coolant temperature seems normal?
- It is not recommended to continue driving with this code present, as there may be underlying issues affecting the engine coolant system that could lead to potential problems.
7. How much does it typically cost to repair the OBDII code U1073 in a Mercury?
- The cost of repair can vary depending on the root cause of the issue, but it may range from $100 to $300 for parts and labor.
8. Can a DIY enthusiast with basic automotive knowledge fix the OBDII code U1073 issue in a Mercury?
- Depending on the exact cause of the problem, some DIY enthusiasts may be able to address this issue by replacing the coolant temperature sensor or checking for wiring issues.
9. Will resetting the OBDII code U1073 in a Mercury make the issue go away permanently?
- Resetting the code may temporarily clear the fault, but if the underlying issue causing the code is not resolved, it is likely to reoccur.
10. How urgent is it to address the OBDII code U1073 in a Mercury once it appears?
- It is best to address this issue promptly to prevent potential engine damage and ensure the proper functioning of the engine coolant system.
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