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U1716 Cadillac Code - Passenger Power Window Low Speed Serial Data Line Or Sensor Circuit

Quick Answer

The U1716 diagnostic trouble code (DTC) for Cadillac vehicles indicates a problem with the passenger power window low-speed serial data line or sensor circuit. Common causes include Faulty passenger power window control module, Damaged or corroded wiring in the low-speed serial data line, Loose or poor connections in the sensor circuit. 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 Cadillac indicates Passenger Power Window Low Speed Serial Data Line Or Sensor Circuit.
Common causes
Common causes include Faulty passenger power window control module, Damaged or corroded wiring in the low-speed serial data line, Loose or poor connections in the sensor circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code U1716 Cadillac Description

The U1716 diagnostic trouble code (DTC) for Cadillac vehicles indicates a problem with the passenger power window low-speed serial data line or sensor circuit. This code is specifically related to the communication system within the vehicle that controls the operation of the passenger side power window. The low-speed serial data line is responsible for transmitting data between various modules and sensors in the vehicle, including the power window control module. When there is a fault in this communication line or sensor circuit, it can lead to issues with the passenger power window operation.

OBDII Code U1716 Cadillac - Passenger Power Window Low Speed Serial Data Line Or Sensor Circuit
U1716 Cadillac Code - Passenger Power Window Low Speed Serial Data Line Or Sensor Circuit

Common Causes of U1716 Cadillac

  1. Faulty passenger power window control module.
  2. Damaged or corroded wiring in the low-speed serial data line.
  3. Loose or poor connections in the sensor circuit.
  4. Defective passenger power window motor.
  5. Issues with the vehicle's main communication network causing disruptions in data transmission.

Symptoms of U1716 Cadillac

  1. Passenger power window not responding to switch commands.
  2. Intermittent operation of the passenger power window.
  3. Unusual noises coming from the passenger door when attempting to operate the window.
  4. Passenger power window getting stuck in either the open or closed position.
  5. Illumination of the "Service Vehicle Soon" or similar warning light on the dashboard.

How to Fix U1716 Cadillac

  1. Begin by conducting a thorough visual inspection of the wiring harness and connections related to the passenger power window system.
  2. Use a multimeter to test the continuity of the low-speed serial data line and sensor circuit to identify any breaks or shorts.
  3. Inspect the passenger power window control module for any signs of damage or malfunction and replace if necessary.
  4. Test the passenger power window motor to ensure it is functioning correctly and replace if found to be faulty.
  5. Clear the DTC from the vehicle's computer system using a diagnostic scan tool after completing the repairs.

Cost to Fix U1716 Cadillac

The typical repair costs for addressing a U1716 Cadillac code can vary depending on the specific cause of the issue. In general, you can expect to pay anywhere from $150 to $500 for parts and labor. However, it's important to note that the actual cost may be higher or lower depending on the location of the repair, the make and model of the vehicle, and the rates charged by the auto repair shop. Diagnostic time and labor rates can range from $80 to $150 per hour, with rates potentially higher at dealerships or in metropolitan areas. For a more accurate estimate, it's recommended to contact local auto repair shops for pricing information.

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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 Cadillac Code

1. What does OBDII code U1716 mean on a Cadillac?

Code U1716 indicates an issue with the passenger power window low-speed serial data line or sensor circuit, which may affect communication between the window module and other systems.

2. What are the symptoms of code U1716 on a Cadillac?

Common symptoms include the passenger power window not operating, intermittent window functionality, or a malfunction indicator light on the dashboard.

3. What causes OBDII code U1716 to trigger?

This code is typically caused by a faulty window switch, damaged wiring or connectors in the serial data circuit, or a malfunctioning power window control module.

4. Can a blown fuse cause code U1716 on a Cadillac?

Yes, a blown fuse related to the power window circuit can interrupt communication, potentially triggering code U1716.

5. How do you diagnose code U1716 on a Cadillac?

Diagnosis involves checking for loose or damaged connectors, inspecting the wiring for the passenger window circuit, and testing the window switch and control module for proper operation.

6. Is code U1716 specific to the passenger window only?

Yes, this code specifically refers to the low-speed serial data line or sensor circuit for the passenger power window on the affected Cadillac model.

7. Can software issues cause code U1716?

Yes, outdated or corrupted software in the power window control module may lead to communication errors and trigger this code.

8. How can you fix code U1716 on a Cadillac?

Repairs typically involve replacing the damaged wiring or connectors, resetting the control module, updating software, or replacing the faulty window switch or control module.

9. Can I still drive my Cadillac with code U1716?

Yes, you can still drive, but the passenger power window may not function properly, which could be inconvenient, especially in adverse weather conditions.

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

Repair costs vary depending on the specific issue, but fixes like wiring repairs or module replacements can range from $100 to $500 or more, including parts and labor.

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