AutoCodes – Cadillac – B3287 Cadillac

B3287 Cadillac Code - Left Rear Window Express Up or Down Circuit Low

Quick Answer

This Diagnostic Trouble Code (DTC) is generated by a passenger door window switch or a passenger door window switch circuit. Common causes include Faulty Left Rear Window Switch, Left Rear Window Switch harness is open or shorted, Left Rear Window 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: B3287 Cadillac indicates Left Rear Window Express Up or Down Circuit Low.
Common causes: Common causes include Faulty Left Rear Window Switch, Left Rear Window Switch harness is open or shorted, Left Rear Window 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 483

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 06, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B3287 Cadillac Description

This Diagnostic Trouble Code (DTC) is generated by a passenger door window switch or a passenger door window switch circuit. Each passenger door window switch is mounted to the trim panel of the appropriate passenger door. The circuits and contacts of each passenger door window switch receive battery voltage and ground from the corresponding door module, i.e. Front Passenger Door Module (PDM), Left Rear Door Module (LRDM), or Right Rear Door Module (RRDM). When a passenger door window switch is operated, the switch contacts close and the associated door module interprets the flow of voltage as a specific request to move the window up or down. If conditions are correct for window operation to occur, the door module then powers the associated window motor and circuits to move the window.

OBDII Code B3287 Cadillac - Left Rear Window Express Up or Down Circuit Low - AutoCodes.com — B3287 Cadillac Code - Left Rear Window Express Up or Down Circuit Low

What does this mean?

What are the Possible Causes of the DTC B3287 Cadillac?

Faulty Left Rear Window Switch
Left Rear Window Switch harness is open or shorted
Left Rear Window Switch circuit poor electrical connection
Faulty Left Rear Door Module (LRDM)

How to Fix the DTC B3287 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 B3287 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 B3287 Cadillac Code

1. What are the common symptoms of OBDII code B3287 in a Cadillac related to the Left Rear Window Express Up or Down Circuit Low issue?

- Common symptoms include the left rear window failing to operate with the express up or down feature, slow window movement, or complete window inoperability.

2. What are the potential causes of OBDII code B3287 in a Cadillac indicating a Left Rear Window Express Up or Down Circuit Low problem?

- Causes may include a faulty window switch, damaged wiring or connectors, a malfunctioning window motor, or a problem with the window regulator.

3. How can I diagnose the OBDII code B3287 in my Cadillac if I suspect a Left Rear Window Express Up or Down Circuit Low issue?

- Start by checking the wiring and connectors related to the left rear window circuit, test the window switch for functionality, and inspect the window motor and regulator for any signs of damage.

4. What are some repair tips for resolving the OBDII code B3287 Left Rear Window Express Up or Down Circuit Low issue in a Cadillac?

- Repair tips may include repairing or replacing damaged wiring, connectors, or components, resetting the window module, or recalibrating the window motor and regulator.

5. Can a DIY enthusiast fix the OBDII code B3287 Left Rear Window Express Up or Down Circuit Low problem in a Cadillac, or is professional assistance recommended?

- DIY enthusiasts with automotive repair experience may be able to diagnose and fix simple issues causing the B3287 code, but complex electrical problems or component replacements may require professional assistance.

6. Is it safe to continue driving my Cadillac with the OBDII code B3287 indicating a Left Rear Window Express Up or Down Circuit Low problem?

- It is generally safe to drive the Cadillac with this code, but it is recommended to address the issue promptly to avoid potential inconvenience or safety concerns, especially in case of emergency situations.

7. How much can I expect to pay for repairing the OBDII code B3287 Left Rear Window Express Up or Down Circuit Low issue in a Cadillac at a professional auto repair shop?

- Repair costs can vary depending on the exact cause of the issue, but expect to pay anywhere from $100 to $500 for parts and labor, with additional costs if major components need to be replaced.

8. Are there any preventive measures I can take to avoid encountering the OBDII code B3287 Left Rear Window Express Up or Down Circuit Low problem in my Cadillac in the future?

- Regularly inspecting and maintaining the window components, avoiding excessive force when operating the windows, and addressing any window issues promptly can help prevent the recurrence of this problem.