AutoCodes – Generic – U1716

U1716 Code - Passenger 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 Passenger Power Window Sensor/Motor, Passenger Power Window Sensor/Motor harness is open or shorted, Passenger 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
U1716 indicates Passenger Power Window Low Speed Serial Data Line Or Sensor Circuit.
Common causes
Common causes include Faulty Passenger Power Window Sensor/Motor, Passenger Power Window Sensor/Motor harness is open or shorted, Passenger 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.
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Code Popularity 1,171
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 U1716 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 U1716 - Passenger Power Window Low Speed Serial Data Line Or Sensor Circuit - AutoCodes.com
U1716 Code - Passenger Power Window Low Speed Serial Data Line Or Sensor Circuit

What are the Possible Causes of the DTC U1716?

  • Faulty Passenger Power Window Sensor/Motor
  • Passenger Power Window Sensor/Motor harness is open or shorted
  • Passenger Power Window Sensor/Motor circuit poor electrical connection
  • Faulty Passenger Front Door Module (PFDM)

How to Fix the DTC U1716?

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 U1716 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 U1716 code?

Need more information on how to fix the U1716 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1716 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • U1716 Buick β€” Passenger Power Window Low Speed Serial Data Line Or Sensor Circuit
  • U1716 Cadillac β€” Passenger Power Window Low Speed Serial Data Line Or Sensor Circuit
  • U1716 Chevrolet β€” Passenger Power Window Low Speed Serial Data Line Or Sensor Circuit
  • U1716 GMC β€” Passenger 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 U1716 Code

1. What are the common symptoms of OBDII code U1716?

- Common symptoms include the passenger power window not working, slow operation of the window, or complete failure of the window to move.

2. What can cause the OBDII code U1716 to trigger?

- The code U1716 may be triggered by a faulty passenger power window motor, damaged wiring or connectors in the power window system, or a malfunction in the serial data line or sensor circuit.

3. How can I diagnose the cause of OBDII code U1716?

- To diagnose the cause of U1716, start by inspecting the power window motor, checking the wiring and connectors for any damage, and testing the sensor circuit for proper operation using a diagnostic scanner.

4. Can I still drive my vehicle with OBDII code U1716?

- It is not recommended to drive your vehicle with code U1716 as it may affect the proper functioning of the passenger power window and other related systems.

5. How do I repair OBDII code U1716?

- Repairing code U1716 involves fixing or replacing the passenger power window motor, repairing any damaged wiring or connectors, and addressing any issues with the serial data line or sensor circuit.

6. Are there any DIY tips for fixing OBDII code U1716?

- DIY tips for fixing code U1716 include checking fuses related to the power window system, ensuring proper power supply to the window motor, and inspecting for any visible damage in the wiring.

7. Can a mechanic help me reset OBDII code U1716?

- Yes, a mechanic can help diagnose and reset code U1716 using a diagnostic scanner to clear the error code from the vehicle's computer.

8. What should I do if OBDII code U1716 keeps coming back after resetting?

- If code U1716 keeps coming back after resetting, it indicates a persistent issue in the power window system that requires further inspection and repair by a professional technician.

9. Is it safe to ignore OBDII code U1716?

- Ignoring code U1716 can lead to continued problems with the passenger power window system and may result in further damage or failure of components, so it is not advisable to ignore this code.

10. How much does it typically cost to repair OBDII code U1716?

- The cost to repair code U1716 can vary depending on the underlying cause, but it may involve expenses for parts replacement, labor, and diagnostic fees, which could range from $100 to $500 or more.

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