AutoCodes – Cadillac – B2187 Cadillac

B2187 Cadillac Code - Power Seat Switch Circuit

Quick Answer

The seat adjuster switch signal circuits are supplied 12 volts through resistors within the Memory Seat Module. Common causes include Faulty Power Seat Switch, Power Seat Switch harness is open or shorted, Power Seat 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: B2187 Cadillac indicates Power Seat Switch Circuit.
Common causes: Common causes include Faulty Power Seat Switch, Power Seat Switch harness is open or shorted, Power Seat 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 560

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 Sep 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2187 Cadillac Description

The seat adjuster switch signal circuits are supplied 12 volts through resistors within the Memory Seat Module. When a seat adjuster switch is pressed the signal circuit is grounded. Closing the signal circuit to ground pulls the signal circuit voltage low indicating to the Memory Seat Module the switch status is active. The OBDII code is set when a seat adjuster switch input to the Memory Seat Module is active for more than 20 seconds.

OBDII Code B2187 Cadillac - Power Seat Switch Circuit - AutoCodes.com — B2187 Cadillac Code - Power Seat Switch Circuit

What does this mean?

What are the Possible Causes of the DTC B2187 Cadillac?

Faulty Power Seat Switch
Power Seat Switch harness is open or shorted
Power Seat Switch circuit poor electrical connection
Faulty Memory Seat Module

How to Fix the DTC B2187 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 B2187 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 B2187 Cadillac Code

1. What are common symptoms of OBDII code B2187 in a Cadillac related to the power seat switch circuit?

The common symptoms include non-functional power seat controls, inability to adjust the seat position, or erratic seat movement.

2. What are the potential causes of OBDII code B2187 in a Cadillac?

Possible causes include a faulty power seat switch, damaged wiring or connectors in the seat switch circuit, or a malfunctioning power seat control module.

3. How can I diagnose the issue causing OBDII code B2187 in my Cadillac's power seat switch circuit?

You can start by visually inspecting the wiring and connectors for any visible damage. Using a multimeter, test the power seat switch for continuity and proper operation. Additionally, scanning the power seat control module for any related fault codes can help pinpoint the issue.

4. Can a DIY enthusiast repair OBDII code B2187 related to the power seat switch circuit in a Cadillac?

Yes, simple repairs such as replacing a faulty power seat switch or repairing damaged wiring can often be done by DIY enthusiasts with basic automotive repair knowledge and tools.

5. Is it safe to drive my Cadillac with OBDII code B2187 affecting the power seat switch circuit?

While it may be safe to drive, it is not recommended as the power seat controls are essential for adjusting your seating position for optimal comfort and safety.

6. How much can I expect to pay for professional repair of OBDII code B2187 in a Cadillac's power seat switch circuit?

The cost of professional repair can vary depending on the exact cause of the issue, but it typically ranges from $100 to $300 for parts and labor.

7. Are there any temporary fixes or workarounds for OBDII code B2187 in a Cadillac's power seat switch circuit?

Temporary fixes such as manually adjusting the seat position by moving it physically or disconnecting the power seat switch may be possible, but these are not long-term solutions and may not address the underlying problem.

8. Can OBDII code B2187 in a Cadillac's power seat switch circuit cause other electrical issues in the vehicle?

While the code specifically relates to the power seat switch circuit, electrical issues in one part of the vehicle can sometimes affect other systems. It's recommended to address the code promptly to prevent potential complications.

9. Are there any recalls or service bulletins related to OBDII code B2187 in Cadillac vehicles?

Check with your local Cadillac dealership or visit the manufacturer's website to see if there are any recalls or service bulletins related to OBDII code B2187 impacting the power seat switch circuit in your specific Cadillac model.

10. How do I reset the OBDII code B2187 in a Cadillac after repairing the power seat switch circuit issue?

After repairing the underlying problem, you can reset the OBDII code using an OBDII scanner tool or by disconnecting the vehicle's battery for a few minutes to clear the code from the system.