U1072 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 Module that is not communicating, Module harness is open or shorted, Module 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
- U1072 indicates Invalid Or Missing Data For Engine Coolant.
- Common causes
- Common causes include Faulty Module that is not communicating, Module harness is open or shorted, Module 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 U1072 Description
What are the Possible Causes of the DTC U1072?
- Faulty Module that is not communicating
- Module harness is open or shorted
- Module circuit poor electrical connection
How to Fix the DTC U1072?
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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the U1072 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 U1072 Code
What does the OBDII code U1072 mean?
U1072 indicates that the vehicle's engine control module (ECM) has detected invalid or missing data related to the engine coolant temperature sensor.
What are the common symptoms of code U1072?
Symptoms may include erratic engine temperature readings, engine overheating, reduced fuel efficiency, or the check engine light illuminating.
What causes the U1072 code to appear?
Possible causes include a faulty engine coolant temperature sensor, damaged wiring, loose or corroded electrical connections, or a malfunctioning ECM.
Can driving with code U1072 damage my car?
Yes, ignoring this code can lead to engine overheating or inefficient fuel combustion, potentially causing long-term damage to the engine.
How is the U1072 code diagnosed?
A technician will use a scan tool to verify the code, inspect the coolant temperature sensor and its wiring, and check for communication issues with the ECM.
Can I fix code U1072 myself?
If you’re experienced with car repairs, you can inspect the wiring for damage or corrosion and replace the coolant temperature sensor. Otherwise, it’s best to consult a professional.
Is replacing the engine coolant temperature sensor a common fix for U1072?
Yes, if the sensor is faulty or sending incorrect data, replacing it is often an effective solution.
What tools are needed to repair U1072?
Basic tools include a multimeter for electrical testing, a scan tool to verify the code, and potentially a wrench to replace the coolant temperature sensor.
How much does it cost to repair code U1072?
Repair costs vary but typically range from $50 to $200 depending on whether the issue is with the sensor, wiring, or ECM.
Can a software update fix the U1072 code?
In rare cases, a software update for the ECM may resolve communication issues, but hardware inspection is usually required first.
Discuss the causes and fixes for U1072 OBDII Code
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