AutoCodes – Lincoln – B1087 Lincoln

B1087 Lincoln Code - Door Module LIN Bus 'A'

Quick Answer

The Driver Door Module (DDM) and Passenger Door Module (PDM) communicate with the corresponding Driver Rear Door Module (DRDM) and Passenger Rear Door Module (PRDM) over a dedicated Local Interconnect Network (LIN). Common causes include Faulty Window Control Switch, Window Control Switch harness is open or shorted, Window Control 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: B1087 Lincoln indicates Door Module LIN Bus 'A'.
Common causes: Common causes include Faulty Window Control Switch, Window Control Switch harness is open or shorted, Window Control 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 2,613

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 Nov 18, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1087 Lincoln Description

The Driver Door Module (DDM) and Passenger Door Module (PDM) communicate with the corresponding Driver Rear Door Module (DRDM) and Passenger Rear Door Module (PRDM) over a dedicated Local Interconnect Network (LIN). The window control on the driver door also provides information to the DDM over the same LIN. In the event of a failure on a LIN, the power windows, power locks, and switch illumination are inoperative in the corresponding rear door. If there is a LIN failure for the DDM, the controls of the window control switch are also inoperative.

OBDII Code B1087 Lincoln - Door Module LIN Bus 'A' - AutoCodes.com — B1087 Lincoln Code - Door Module LIN Bus 'A'

What does this mean?

What are the Possible Causes of the DTC B1087 Lincoln?

Faulty Window Control Switch
Window Control Switch harness is open or shorted
Window Control Switch circuit poor electrical connection
Faulty Driver Door Module (DDM)
Faulty Passenger Door Module (PDM)

How to Fix the DTC B1087 Lincoln?

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 does this mean?

Code Tech Notes

B1087:83 LIN Bus 'A' Value Of Signal Protection Calculation Incorrect
B1087:86 LIN Bus 'A' Signal Invalid
B1087:88 LIN Bus 'A' Bus Off

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1087 Lincoln 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 B1087 Lincoln Code

1. What are the common symptoms of OBDII code B1087 in a Lincoln related to the Door Module LIN Bus 'A'?

- Common symptoms include issues with power door locks, interior lights malfunctioning, and difficulty controlling windows.

2. What are the possible causes of OBDII code B1087 in a Lincoln?

- The code B1087 can be triggered by faulty wiring connections, a malfunctioning door module, or issues with the LIN bus communication network.

3. How can I diagnose the cause of OBDII code B1087 in my Lincoln?

- To diagnose the issue, you can perform a visual inspection of the wiring, test the door module for proper function, and use a diagnostic scan tool to check the LIN bus communication.

4. Can I repair OBDII code B1087 in my Lincoln at home?

- Basic repairs such as checking and repairing wiring connections or replacing a faulty door module can be done at home if you have the necessary tools and skills.

5. Is it safe to continue driving my Lincoln with OBDII code B1087 present?

- While the vehicle may still operate, it is recommended to address the issue promptly to prevent further electrical problems with the door module and related components.

6. How much does it typically cost to repair OBDII code B1087 in a Lincoln at a repair shop?

- Repair costs can vary depending on the exact cause of the issue, but you can expect to pay anywhere from $100 to $500 for parts and labor.

7. Can resetting the OBDII code B1087 in a Lincoln make it go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear.

8. Are there any preventive measures I can take to avoid OBDII code B1087 in my Lincoln?

- Regularly checking the electrical components in your vehicle, such as door modules and wiring, can help prevent issues that may trigger code B1087.

9. How long does it typically take to repair OBDII code B1087 in a Lincoln?

- The repair time can vary depending on the complexity of the issue and the availability of parts, but it may take anywhere from 1 to 3 hours at a repair shop.

10. Can OBDII code B1087 in a Lincoln be a recurring problem?

- If the root cause of the issue is not properly addressed, OBDII code B1087 may reoccur, leading to continued electrical problems with the door module LIN Bus 'A'.