AutoCodes – Pontiac – B3922 Pontiac

B3922 Pontiac Code - Front Wiper Function Select Circuit

Quick Answer

The Body Control Module (BCM) monitors the windshield wiper switch low signal circuit. Common causes include Faulty Turn Signal/Multifunction Switch, Turn Signal/Multifunction Switch harness is open or shorted, Turn Signal/Multifunction Switch 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: B3922 Pontiac indicates Front Wiper Function Select Circuit.
Common causes: Common causes include Faulty Turn Signal/Multifunction Switch, Turn Signal/Multifunction Switch harness is open or shorted, Turn Signal/Multifunction Switch 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 1,027

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 25, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B3922 Pontiac Description

The Body Control Module (BCM) monitors the windshield wiper switch low signal circuit. When the wiper switch is place in the low position, battery voltage is applied through the switch contacts, a series of resistors, and the wiper switch low signal circuit to the BCM. The BCM then applies battery voltage through the wiper relay control circuit to energize the WPR Relay. When energized, battery voltage from the WPR Fuse is applied through the switch side of the WPR relay then through the switch side of the WPR HI relay to the windshield wiper motor. The Diagnostic Trouble Code (DTC) sets when the BCM detects a short to ground on the windshield wiper switch low signal circuit.

OBDII Code B3922 Pontiac - Front Wiper Function Select Circuit - AutoCodes.com — B3922 Pontiac Code - Front Wiper Function Select Circuit

What does this mean?

What are the Possible Causes of the DTC B3922 Pontiac?

Faulty Turn Signal/Multifunction Switch
Turn Signal/Multifunction Switch harness is open or shorted
Turn Signal/Multifunction Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B3922 Pontiac?

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 B3922 Pontiac 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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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 Pontiac Code

1. What are the common symptoms of OBDII code B3922 Pontiac (Front Wiper Function Select Circuit)?

- Common symptoms include non-functional front wipers, wipers only working at one speed, or erratic wiper operation.

2. What are the possible causes of OBDII code B3922 Pontiac?

- Causes can include a faulty wiper motor, damaged wiper control module, wiring issues, or a defective wiper switch.

3. How can I diagnose the Front Wiper Function Select Circuit issue?

- Diagnose the issue by checking the wiper motor and control module for proper operation, inspecting the wiring for damage, and testing the wiper switch for functionality.

4. Can OBDII code B3922 Pontiac be fixed without professional help?

- Simple issues like a blown fuse or loose wiring connections can sometimes be fixed without professional help, but more complex problems may require a mechanic's expertise.

5. Are there any DIY repair tips for resolving OBDII code B3922 Pontiac?

- DIY repair tips include checking and replacing blown fuses, inspecting and repairing damaged wiring, and testing components with a multimeter for continuity.

6. How important is it to address the Front Wiper Function Select Circuit issue promptly?

- Addressing the issue promptly is important to ensure proper wiper function, especially during adverse weather conditions where clear visibility is crucial for safe driving.

7. Can OBDII code B3922 Pontiac cause other electrical problems in the vehicle?

- While the code itself pertains to the front wiper function, underlying electrical issues could potentially affect other systems in the vehicle if left unresolved.

8. Is it safe to continue driving with OBDII code B3922 Pontiac triggered?

- It is not recommended to drive with the code triggered, as it may lead to unreliable wiper operation and compromise visibility, increasing the risk of accidents.

9. How much does it typically cost to repair OBDII code B3922 Pontiac at a professional auto repair shop?

- Repair costs can vary depending on the specific issue, but expect to pay anywhere from $100 to $300 for parts and labor to address the Front Wiper Function Select Circuit problem.

10. Can resetting the OBDII system clear the B3922 Pontiac code temporarily?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not fixed, the code is likely to reappear once the problem is detected again by the system.