U1715 Buick 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 Buick 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.
Code U1715 Buick Description
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.
What are the Possible Causes of the DTC U1715 Buick?
- 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 Buick?
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 Buick 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 U1715 Buick Code
1. What does the OBDII code U1715 mean on a Buick?
The U1715 code indicates an issue with the Passenger Power Window High Speed Serial Data Circuit Voltage, suggesting a communication problem between the power window module and other vehicle systems.
2. What are the common symptoms of the U1715 code?
Symptoms include the passenger power window not working, intermittent functionality, or erratic behavior, along with the check engine light or other warning lights.
3. What causes the U1715 code to appear?
Common causes include a faulty power window switch, damaged wiring or connectors in the circuit, a malfunctioning passenger window module, or a communication fault in the high-speed serial data network.
4. Can I still drive my Buick with the U1715 code?
Yes, you can drive the vehicle, but the passenger power window may not function properly, and ignoring the issue could lead to further electrical problems.
5. How do I diagnose the U1715 code?
Start by checking the wiring and connectors for the passenger power window circuit. Use an OBDII scanner to access live data and communication errors. Inspect the passenger window module for faults.
6. What should I do if the passenger power window doesn’t work and the U1715 code is present?
Inspect the power window switch and module for damage or failure, check the wiring for continuity, and replace any defective components.
7. Can a blown fuse cause the U1715 code?
A blown fuse in the passenger power window circuit may not directly trigger the U1715 code, but it can cause related functionality issues that contribute to the problem.
8. How much does it cost to fix the U1715 code on a Buick?
Repair costs vary depending on the cause, but fixing wiring or connectors may cost around $50-$150, while replacing a power window module could cost $200-$400 or more.
9. Will clearing the U1715 code with a scanner fix the problem?
Clearing the code may temporarily turn off warning lights, but it won’t resolve the underlying issue. Proper diagnosis and repairs are necessary to fix the problem.
10. Can the U1715 code be caused by a software issue?
Yes, in rare cases, a software glitch in the vehicle’s control modules can cause communication errors like U1715, requiring a software update or reprogramming to fix.
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