AutoCodes – Generic – B1587

B1587 Code - Autolamp Delay Increase Circuit Failure

Quick Answer

The Body Control Module (BCM) monitors the Autolamp Delay. Common causes include Faulty Autolamp Delay, Autolamp Delay harness is open or shorted, Autolamp Delay 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: B1587 indicates Autolamp Delay Increase Circuit Failure.
Common causes: Common causes include Faulty Autolamp Delay, Autolamp Delay harness is open or shorted, Autolamp Delay 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 4,466

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 May 05, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1587 Description

The Body Control Module (BCM) monitors the Autolamp Delay. The BCM sets the OBDII code when the Autolamp Delay is not to factory specifications.

OBDII Code B1587 - Autolamp Delay Increase Circuit Failure - AutoCodes.com — B1587 Code - Autolamp Delay Increase Circuit Failure

What does this mean?

What are the Possible Causes of the DTC B1587?

Faulty Autolamp Delay
Autolamp Delay harness is open or shorted
Autolamp Delay circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1587?

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 B1587 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.

Need more information about the B1587 code?

Need more information on how to fix the B1587 code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 B1587 Code

1. What are the common symptoms of OBDII code B1587, Autolamp Delay Increase Circuit Failure?

- Common symptoms include the automatic lights not functioning properly, delays in the autolamp system, or complete failure of the autolamp system.

2. What are the possible causes of OBDII code B1587, Autolamp Delay Increase Circuit Failure?

- Possible causes may include a faulty autolamp delay switch, damaged wiring or connectors in the circuit, or a malfunctioning autolamp control module.

3. How can I diagnose OBDII code B1587, Autolamp Delay Increase Circuit Failure?

- Diagnosis typically involves inspecting the autolamp delay switch, checking the wiring and connectors for damage, and testing the autolamp control module for proper functioning.

4. Are there any simple repair tips for fixing OBDII code B1587, Autolamp Delay Increase Circuit Failure?

- Simple repair tips may include checking and replacing any blown fuses related to the autolamp system, ensuring all connections are secure, and resetting the autolamp system.

5. Can OBDII code B1587, Autolamp Delay Increase Circuit Failure cause any other issues in the vehicle?

- While the main issue is related to the autolamp system, unresolved B1587 code can potentially drain the vehicle's battery if the autolamp system remains active when the vehicle is turned off.

6. Is it safe to continue driving with OBDII code B1587, Autolamp Delay Increase Circuit Failure?

- It is generally safe to continue driving with this code, but it is recommended to address the issue promptly to avoid potential safety concerns related to the autolamp system not functioning correctly.

7. Can a DIY enthusiast fix OBDII code B1587, Autolamp Delay Increase Circuit Failure?

- Depending on the specific cause of the issue, DIY enthusiasts with automotive repair experience may be able to fix the problem by following repair guides or consulting with professionals.

8. How much does it typically cost to repair OBDII code B1587, Autolamp Delay Increase Circuit Failure at a mechanic's shop?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor at a mechanic's shop.

9. Will resetting the OBDII system clear OBDII code B1587, Autolamp Delay Increase Circuit Failure?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the code is not fixed, the code is likely to reappear after some time.

10. How long does it typically take to repair OBDII code B1587, Autolamp Delay Increase Circuit Failure?

- The repair time can vary based on the cause of the issue and the availability of parts, but it may take anywhere from 1 to 3 hours for a mechanic to diagnose and fix the problem.