AutoCodes – Generic – B1499

B1499 Code - Lamp Turn Signal Left Circuit Failure

Quick Answer

The Body Control Module (BCM) monitors the Lamp Turn Signal Left. Common causes include Faulty Lamp Turn Signal Left, Lamp Turn Signal Left harness is open or shorted, Lamp Turn Signal Left 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: B1499 indicates Lamp Turn Signal Left Circuit Failure.
Common causes: Common causes include Faulty Lamp Turn Signal Left, Lamp Turn Signal Left harness is open or shorted, Lamp Turn Signal Left 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 17,086

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 Apr 14, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1499 Description

The Body Control Module (BCM) monitors the Lamp Turn Signal Left. The BCM sets the OBDII code when the Lamp Turn Signal Left is not to factory specifications.

OBDII Code B1499 - Lamp Turn Signal Left Circuit Failure - AutoCodes.com — B1499 Code - Lamp Turn Signal Left Circuit Failure

What does this mean?

What are the Possible Causes of the DTC B1499?

Faulty Lamp Turn Signal Left
Lamp Turn Signal Left harness is open or shorted
Lamp Turn Signal Left circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1499?

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 B1499 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 B1499 code?

Need more information on how to fix the B1499 code? Get Access to Factory Service Manuals

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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 B1499 Code

1. What are the common symptoms of OBDII code B1499, Lamp Turn Signal Left Circuit Failure?

The common symptoms of this code include the left turn signal not working, fast blinking of the turn signal indicator, or a warning light on the dashboard.

2. What are the possible causes of OBDII code B1499?

The possible causes of code B1499 include a faulty turn signal bulb, a damaged turn signal wiring harness, a defective turn signal switch, or a malfunctioning body control module.

3. How can I diagnose the cause of OBDII code B1499?

To diagnose the cause of code B1499, you can start by visually inspecting the left turn signal bulb and wiring for any damage. You can also use a multimeter to test the continuity of the wiring and check for any loose connections.

4. Can I repair OBDII code B1499 on my own?

If you have basic knowledge of automotive electrical systems, you may be able to repair code B1499 on your own by replacing a faulty turn signal bulb, repairing damaged wiring, or replacing a defective turn signal switch. However, if you are unsure, it's best to consult a professional mechanic.

5. How urgent is it to address OBDII code B1499?

While code B1499 may not affect the overall drivability of the vehicle, it is important to address it promptly. A malfunctioning turn signal can compromise the safety of your vehicle and other drivers on the road.

6. Is it safe to continue driving with OBDII code B1499?

It is not recommended to continue driving with code B1499, as the left turn signal is an important safety feature that alerts other drivers of your intentions on the road. It's best to address the issue as soon as possible.

7. Can OBDII code B1499 affect other vehicle systems?

While code B1499 specifically relates to the left turn signal circuit, it is always possible for electrical issues to affect other systems in the vehicle. It's important to address the code to prevent any potential cascading issues.

8. Will resetting the OBDII code B1499 turn off the warning light?

Resetting the code may temporarily turn off the warning light, but if the underlying issue is not addressed, the code is likely to return, and the warning light will come back on. It's best to diagnose and repair the root cause of the code.

9. How much does it typically cost to repair OBDII code B1499?

The cost of repairing code B1499 can vary depending on the cause of the issue and whether you choose to do the repairs yourself or take your vehicle to a mechanic. Costs may include the price of replacement parts and labor.

10. Can extreme weather conditions cause OBDII code B1499 to trigger?

Extreme weather conditions, such as heavy rain or snow, can potentially cause electrical issues that lead to code B1499. Moisture or water ingress into the turn signal components can result in circuit failures.