AutoCodes – Cadillac – B3708 Cadillac

B3708 Cadillac Code - Front Washer Motor Input High

Quick Answer

The Body Control Module (BCM) monitors the windshield washer pump control circuit. Common causes include Faulty Front Washer Motor, Front Washer Motor harness is open or shorted, Front Washer 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: B3708 Cadillac indicates Front Washer Motor Input High.
Common causes: Common causes include Faulty Front Washer Motor, Front Washer Motor harness is open or shorted, Front Washer 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 501

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 13, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B3708 Cadillac Description

The Body Control Module (BCM) monitors the windshield washer pump control circuit. When a front windshield wash is requested for more than 2 minutes, the BCM will turn OFF the windshield washer pump if the front wiper is NOT requested by the wiper switch.
Battery voltage for the windshield washer pump is supplied through the FRT WIPER 25 A fuse and windshield wiper washer switch. Grounding for the windshield washer pump is through the OFF position of the rear washer switch, when equipped. The Diagnostic Trouble Code (DTC) sets when the front windshield washer pump control circuit is shorted to battery voltage for 2 minutes.

OBDII Code B3708 Cadillac - Front Washer Motor Input High - AutoCodes.com — B3708 Cadillac Code - Front Washer Motor Input High

What does this mean?

What are the Possible Causes of the DTC B3708 Cadillac?

Faulty Front Washer Motor
Front Washer Motor harness is open or shorted
Front Washer Motor circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B3708 Cadillac?

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 B3708 Cadillac 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 B3708 Cadillac Code

1. What are the common symptoms of OBDII code B3708 in a Cadillac indicating Front Washer Motor Input High?

The common symptoms include the front windshield washer system not functioning properly, excessive noise coming from the washer motor, and the windshield washer fluid not spraying onto the windshield.

2. What are the possible causes of OBDII code B3708 in a Cadillac?

Possible causes of this code include a faulty front washer motor, a short circuit in the wiring harness related to the front washer motor, or a malfunctioning control module.

3. How can I diagnose the issue causing OBDII code B3708 in my Cadillac?

You can diagnose the issue by checking the front washer motor for proper operation, inspecting the wiring harness for any visible damage or shorts, and using a diagnostic scan tool to read the code and identify the specific issue.

4. What are some repair tips for resolving OBDII code B3708 in a Cadillac?

Repair tips include checking and replacing the front washer motor if necessary, repairing any damaged wiring in the harness, and resetting the control module after making the repairs.

5. Can I still drive my Cadillac with OBDII code B3708 present?

It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to ensure the proper functioning of the front washer system.

6. How much does it typically cost to repair OBDII code B3708 in a Cadillac?

The cost of repairs can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

7. Is it possible to reset OBDII code B3708 in a Cadillac without making any repairs?

While you can clear the code using a diagnostic scan tool, it is important to address the underlying issue to prevent the code from reappearing.

8. Will OBDII code B3708 cause my Cadillac to fail an emissions test?

This code is not directly related to emissions, so it is unlikely to cause your Cadillac to fail an emissions test.

9. Are there any preventive measures I can take to avoid OBDII code B3708 in the future?

Regularly checking the windshield washer system for any signs of malfunction, such as low fluid levels or unusual noises, can help prevent issues that may trigger this code.

10. Can a DIY enthusiast with basic automotive knowledge repair OBDII code B3708 in a Cadillac?

While some repairs related to this code may be DIY-friendly, it is recommended to consult a professional technician for an accurate diagnosis and proper repair to ensure the issue is resolved effectively.