AutoCodes – Generic – U1714

U1714 Code - Driver Power Window Low Speed Serial Data Line Or Sensor Circuit

Quick Answer

Express Up operation of the front door power windows is monitored and controlled by the front door modules and the window sensors. Common causes include Faulty Drive Power Window Sensor/Motor, Drive Power Window Sensor/Motor harness is open or shorted, Drive Power Window Sensor/Motor 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
U1714 indicates Driver Power Window Low Speed Serial Data Line Or Sensor Circuit.
Common causes
Common causes include Faulty Drive Power Window Sensor/Motor, Drive Power Window Sensor/Motor harness is open or shorted, Drive Power Window Sensor/Motor 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,540
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 05, 2020
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Code U1714 Description

Express Up operation of the front door power windows is monitored and controlled by the front door modules and the window sensors. Each front door window motor has a window sensor mounted to it. The Driver Door Module (DDM) and the Passenger Front Door Module (PFDM) each supply battery voltage and ground to power their respective window sensors. The door modules and sensors communicate with each other via a power window high-speed serial data circuit, and a power window low-speed serial data circuit. The window sensor detects differences in the window motors electrical pulses to determine if there is an obstruction to the travel of the window glass. The door modules use the information generated by the sensors to disable the Express-Up movement of a window or reverse the direction of travel, in the event that a passenger, or other obstacles, has become trapped in it.
The power window low-speed serial data circuit is a unique two-way serial data communications link between the door module and the sensor.
State-of-health messages, the position of the window glass in relation to the distance traveled by the window, and the direction in which the window is moving are communicated via this circuit.
The Diagnostic Trouble Code (DTC) will be set by the driver door module (DDM), or by the passenger front door module (PFDM) when the DDM or the PFDM has detected any of the following conditions:
- The door module cannot communicate with the sensor over the power window low-speed serial data line.
- The power window low-speed serial data line is open.
- The power window low-speed serial data line is shorted to ground.
- The power window low-speed serial data line is shorted to battery.
- The window sensor battery voltage circuit has failed.
- The window sensor low reference circuit has failed.
OBDII Code U1714 - Driver Power Window Low Speed Serial Data Line Or Sensor Circuit - AutoCodes.com
U1714 Code - Driver Power Window Low Speed Serial Data Line Or Sensor Circuit

What are the Possible Causes of the DTC U1714?

  • Faulty Drive Power Window Sensor/Motor
  • Drive Power Window Sensor/Motor harness is open or shorted
  • Drive Power Window Sensor/Motor circuit poor electrical connection
  • Faulty Driver Door Module (DDM)

How to Fix the DTC U1714?

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 U1714 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 U1714 code?

Need more information on how to fix the U1714 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1714 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • U1714 Buick β€” Driver Power Window Low Speed Serial Data Line Or Sensor Circuit
  • U1714 Cadillac β€” Driver Power Window Low Speed Serial Data Line Or Sensor Circuit
  • U1714 Chevrolet β€” Driver Power Window Low Speed Serial Data Line Or Sensor Circuit
  • U1714 GMC β€” Driver Power Window Low Speed Serial Data Line Or Sensor Circuit
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 U1714 Code

1. What are the common symptoms of OBDII code U1714?

- Common symptoms include the power window not operating properly, slow window movement, or complete failure of the driver power window.

2. What can cause the U1714 code to trigger?

- The U1714 code can be triggered by issues such as a faulty power window motor, damaged wiring in the window circuit, or a malfunctioning window control module.

3. How do you diagnose the U1714 code?

- Diagnosing the U1714 code typically involves using a scan tool to identify the specific fault in the driver power window system, checking the wiring and connections, and testing the power window motor.

4. What are some repair tips for fixing the U1714 code?

- Repair tips for fixing the U1714 code may include repairing or replacing damaged wiring, replacing the power window motor, resetting the window control module, or reprogramming the window system.

5. Can I still drive my vehicle with the U1714 code present?

- It is generally safe to drive your vehicle with the U1714 code present, but it is recommended to address the issue promptly to avoid further damage to the power window system.

6. How much does it cost to repair the U1714 code?

- The cost of repairing the U1714 code can vary depending on the underlying issue, but it may range from a simple wiring repair cost to a more expensive power window motor replacement cost.

7. Can the U1714 code be triggered by a blown fuse?

- Yes, a blown fuse in the power window circuit can also trigger the U1714 code, so it is important to check and replace any blown fuses as part of the diagnostic process.

8. Will resetting the vehicle's computer clear the U1714 code?

- Resetting the vehicle's computer may temporarily clear the U1714 code, but if the underlying issue is not addressed, the code is likely to reappear once the system detects the fault again.

9. Is the U1714 code exclusive to driver power window issues?

- Yes, the U1714 code specifically relates to driver power window low-speed serial data line or sensor circuit problems, indicating an issue within the driver power window system.

10. Can a DIY enthusiast fix the U1714 code at home?

- Depending on the DIY enthusiast's skill level and access to tools, it may be possible to address the U1714 code at home by following repair guides, but complex issues may require professional assistance.

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