AutoCodesGeneric – U1715

U1715 Code - Passenger Power Window High Speed Serial Data Circuit Voltage

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
U1715 indicates Passenger Power Window High Speed Serial Data Circuit Voltage.
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 1,987
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 U1715 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 obstacle, has become trapped in it.
The power window high-speed serial data circuit is a unique one-way communications link between the sensor and the door module. The sensor uses a voltage signal, and also a 1kHz signal, to transmit information, via this circuit, from the sensor to the door module.
The Diagnostic Trouble Code (DTC) will be set by the Driver Door Module (DDM) or the Passenger Front Door Module (PFDM) when the DDM or PFDM detects either of the following conditions: The power window high-speed serial data circuit voltage is a constant low for 112 milliseconds while the window is not moving or the power window high-speed serial data circuit 1 kHz signal is active for a period of 112 milliseconds while the window is not moving.
OBDII Code U1715 - Passenger Power Window High Speed Serial Data Circuit Voltage - AutoCodes.com
U1715 Code - Passenger Power Window High Speed Serial Data Circuit Voltage

What are the Possible Causes of the DTC U1715?

  • 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 U1715?

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 U1715 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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Information for Specific Makes

  • U1715 Buick — Passenger Power Window High Speed Serial Data Circuit Voltage
  • U1715 Cadillac — Passenger Power Window High Speed Serial Data Circuit Voltage
  • U1715 Chevrolet — Passenger Power Window High Speed Serial Data Circuit Voltage
  • U1715 GMC — Passenger Power Window High Speed Serial Data Circuit Voltage
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 U1715 Code

1. What does the OBDII code U1715 mean?

U1715 indicates an issue with the Passenger Power Window High Speed Serial Data Circuit Voltage, typically related to communication or electrical faults in the power window system.

2. What are the common symptoms of code U1715?

Symptoms include the passenger power window not responding to controls, intermittent operation, or the window being stuck in one position.

3. What causes the U1715 code to appear?

Common causes include a faulty window switch, damaged wiring or connectors in the power window circuit, or a malfunctioning Body Control Module (BCM).

4. Can a weak battery cause the U1715 code?

Yes, a weak or failing battery can cause voltage irregularities, potentially triggering this code.

5. How can I diagnose code U1715?

Begin by inspecting the wiring and connectors for damage or corrosion, testing the passenger window switch, and using a multimeter to check circuit voltage levels.

6. Is it safe to drive with a U1715 code?

Yes, it is generally safe to drive, but the passenger power window may not function properly, which could be inconvenient or problematic in certain situations.

7. How can I fix the U1715 code?

Repairs may involve replacing a damaged window switch, repairing or replacing faulty wiring, or reprogramming or replacing the BCM.

8. Can a blown fuse cause the U1715 code?

While not a direct cause, a blown fuse in the power window circuit can lead to related issues and should be checked during diagnosis.

9. Do I need special tools to fix the U1715 code?

Basic tools like a multimeter and OBDII scanner are essential for diagnosing and repairing this code. Advanced diagnostic tools may be needed if the BCM is involved.

10. Can code U1715 clear itself after repairs?

In some cases, the code may clear itself after fixing the issue. If it doesn’t, you may need to manually clear it with an OBDII scanner.

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