AutoCodes – Generic – B16BF

B16BF Code - Front Left Sidemarker Lamp Control Circuit

Quick Answer

The Body Control Module (BCM) receives the input from the headlamp switch requesting park lamp illumination. Common causes include Faulty Front Left Sidemarker Lamp, Front Left Sidemarker Lamp harness is open or shorted, Front Left Sidemarker Lamp 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: B16BF indicates Front Left Sidemarker Lamp Control Circuit.
Common causes: Common causes include Faulty Front Left Sidemarker Lamp, Front Left Sidemarker Lamp harness is open or shorted, Front Left Sidemarker Lamp 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 3,237

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 Jun 23, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B16BF Description

The Body Control Module (BCM) receives the input from the headlamp switch requesting park lamp illumination. The BCM provides a Pulse Width Modulated (PWM) voltage output through the front left side marker control circuit. The control circuit connects to the Park Lamps. A ground path for the lamps is present through the harness to the body sheet metal. For additional information on the Park Lamps operation. When the Body Control Module (BCM) detects a low condition on the Left Front Side Marker Lamp Driver circuit and sets the Diagnostic Trouble Code (DTC).

OBDII Code B16BF - Front Left Sidemarker Lamp Control Circuit - AutoCodes.com — B16BF Code - Front Left Sidemarker Lamp Control Circuit

What does this mean?

What are the Possible Causes of the DTC B16BF?

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

How to Fix the DTC B16BF?

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

B16BF-11 FRONT LEFT SIDEMARKER LAMP CONTROL CIRCUIT SHORT TO GROUND
B16BF-15 FRONT LEFT SIDEMARKER LAMP CONTROL CIRCUIT SHORT TO BATTERY OR OPEN

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B16BF 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 B16BF code?

Need more information on how to fix the B16BF code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B16BF code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B16BF Chrysler — Front Left Sidemarker Lamp Control Circuit
B16BF Dodge — Front Left Sidemarker Lamp Control Circuit
B16BF Jeep — Front Left Sidemarker Lamp Control Circuit
B16BF RAM — Front Left Sidemarker Lamp Control Circuit

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 B16BF Code

1. What are the common symptoms of OBDII code B16BF related to the Front Left Sidemarker Lamp Control Circuit?

- The common symptoms include the front left sidemarker lamp not functioning properly, flickering, or staying on constantly.

2. What are the possible causes of OBDII code B16BF?

- Possible causes include a faulty sidemarker lamp, damaged wiring or connectors, a blown fuse, or a malfunctioning control module.

3. How can I diagnose the issue related to code B16BF?

- You can start by visually inspecting the sidemarker lamp, wiring, and connectors for any visible damage. Using a multimeter to check for continuity and voltage can help pinpoint the issue.

4. Can a blown fuse cause OBDII code B16BF?

- Yes, a blown fuse in the circuit can trigger the B16BF code. It is important to check and replace any blown fuses as part of the troubleshooting process.

5. Is it safe to continue driving with OBDII code B16BF triggered?

- While the issue may not affect the overall drivability of the vehicle, it is recommended to address the problem promptly to ensure proper functioning of the sidemarker lamp for safety reasons.

6. How can I reset the OBDII code B16BF after repairing the issue?

- After repairing the underlying problem causing the B16BF code, you can reset the code using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes.

7. Can a DIY enthusiast repair OBDII code B16BF themselves?

- Yes, depending on the specific cause, DIY enthusiasts with some automotive knowledge can often repair issues related to the Front Left Sidemarker Lamp Control Circuit.

8. What is the typical cost to repair OBDII code B16BF at a professional auto repair shop?

- The cost of repairing OBDII code B16BF can vary depending on the underlying issue, but it typically ranges from $100 to $300 at a professional auto repair shop.

9. Are there any preventive measures to avoid OBDII code B16BF in the future?

- Regularly inspecting and maintaining the vehicle's lighting system, including sidemarker lamps, can help prevent issues that trigger the B16BF code.

10. Can extreme weather conditions affect the Front Left Sidemarker Lamp Control Circuit and trigger OBDII code B16BF?

- Yes, extreme weather conditions such as heavy rain or extreme cold can sometimes lead to electrical issues in the sidemarker lamp circuit, triggering the B16BF code.