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B3922 Cadillac Code - Front Wiper Function Select Circuit

Quick Answer

The B3922 diagnostic trouble code (DTC) for Cadillac vehicles refers to a problem with the Front Wiper Function Select Circuit. Common causes include Faulty wiper switch, Damaged wiring or connectors in the wiper circuit, Defective wiper motor module. 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
B3922 Cadillac indicates Front Wiper Function Select Circuit.
Common causes
Common causes include Faulty wiper switch, Damaged wiring or connectors in the wiper circuit, Defective wiper motor module.
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 16, 2024
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Code B3922 Cadillac Description

The B3922 diagnostic trouble code (DTC) for Cadillac vehicles refers to a problem with the Front Wiper Function Select Circuit. This code indicates that there is an issue with the circuit that controls the front wiper functions, such as the speed settings and intermittent operation. The front wiper system is essential for maintaining visibility while driving in adverse weather conditions, so it is crucial to address this issue promptly.

OBDII Code B3922 Cadillac - Front Wiper Function Select Circuit
B3922 Cadillac Code - Front Wiper Function Select Circuit

Common Causes of B3922 Cadillac

  1. Faulty wiper switch.
  2. Damaged wiring or connectors in the wiper circuit.
  3. Defective wiper motor module.
  4. Corrosion or moisture in the wiper system components.
  5. Electrical issues within the vehicle's system.

Symptoms of B3922 Cadillac

  1. Front wipers not working at all.
  2. Wipers only operating at one speed.
  3. Wipers not stopping in the correct position.
  4. Wipers failing to respond to control switch inputs.

How to Fix B3922 Cadillac

  1. Begin by conducting a thorough inspection of the wiper system, including the switch, wiring, connectors, and motor module.
  2. Test the wiper switch and motor module for proper functionality using a multimeter.
  3. Replace any damaged wiring, connectors, or components in the circuit.
  4. Clear the DTC from the vehicle's computer system using a diagnostic tool.
  5. Test the wiper system to ensure that the issue has been resolved and that the wipers are functioning correctly.

Cost to Fix B3922 Cadillac

The typical repair costs for addressing the B3922 code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for this repair could range from $50 to $200, while labor costs could range from $100 to $300. It's important to note that these are rough estimates, and actual costs may vary based on factors such as the vehicle's make and model, the location of the repair shop, and the rates charged by the technician. It's recommended to consult with a qualified mechanic for a more accurate cost estimate based on your individual circumstances.

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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 B3922 Cadillac Code

1. What does the OBDII code B3922 mean on a Cadillac?

The B3922 code indicates a problem with the Front Wiper Function Select Circuit, which controls the operation of the windshield wipers.

2. What are the common symptoms of the B3922 code in a Cadillac?

Symptoms include non-functioning or intermittent windshield wipers, wipers stuck in one position, or erratic wiper operation.

3. What causes the B3922 code to appear?

Common causes include a faulty wiper switch, damaged wiring or connectors in the wiper circuit, or a malfunctioning windshield wiper motor.

4. Can a blown fuse trigger the B3922 code in a Cadillac?

Yes, a blown fuse in the wiper circuit can interrupt power and trigger the B3922 code.

5. How is the B3922 code diagnosed?

A technician will inspect the wiper switch, wiring, and motor for damage or faults, and use a diagnostic scan tool to confirm the code and test the circuit.

6. Can I drive my Cadillac with the B3922 code active?

While the car is drivable, lack of properly functioning wipers can be unsafe in rain or snow, so it’s important to address the issue promptly.

7. How do I fix the B3922 code on my Cadillac?

Repairs may involve replacing the wiper switch, repairing or replacing damaged wiring, or replacing the windshield wiper motor if it’s faulty.

8. How much does it cost to repair the B3922 code in a Cadillac?

The cost depends on the specific issue, but it can range from $50 for a fuse replacement to $300 or more for a new wiper motor or switch.

9. Can I reset the B3922 code without fixing the problem?

You can clear the code with a scan tool, but it will likely return if the underlying issue isn’t resolved.

10. Is the B3922 code common in Cadillacs?

It’s not overly common, but it can occur in vehicles with aging electrical components or after exposure to water or corrosion.

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