AutoCodes – Generic – B16D3

B16D3 Code - Right DRL Lamp Control Circuit

Quick Answer

The Body Control Module (BCM) monitors the Right Daytime Running Lights (DRL) Lamp. Common causes include Faulty Right Front Headlamp Assembly, Right Front Headlamp Assembly harness is open or shorted, Right Front Headlamp Assembly 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: B16D3 indicates Right DRL Lamp Control Circuit.
Common causes: Common causes include Faulty Right Front Headlamp Assembly, Right Front Headlamp Assembly harness is open or shorted, Right Front Headlamp Assembly 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 2,137

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 B16D3 Description

The Body Control Module (BCM) monitors the Right Daytime Running Lights (DRL) Lamp. The BCM sets the OBDII code when the Right DRL Lamp is not to factory specifications.

OBDII Code B16D3 - Right DRL Lamp Control Circuit - AutoCodes.com — B16D3 Code - Right DRL Lamp Control Circuit

What does this mean?

What are the Possible Causes of the DTC B16D3?

Faulty Right Front Headlamp Assembly
Right Front Headlamp Assembly harness is open or shorted
Right Front Headlamp Assembly circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B16D3?

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

B16CF-11 RIGHT DRL LAMP CONTROL CIRCUIT SHORT TO GROUND
B16CF-15 RIGHT DRL LAMP CONTROL CIRCUIT SHORT TO BATTERY OR OPEN

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B16D3 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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Need more information on how to fix the B16D3 code? Get Access to Factory Service Manuals

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Information for Specific Makes

B16D3 Chrysler — Right DRL Lamp Control Circuit
B16D3 Dodge — Right DRL Lamp Control Circuit
B16D3 Jeep — Right DRL Lamp Control Circuit
B16D3 RAM — Right DRL 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 B16D3 Code

1. What are the common symptoms of OBDII code B16D3, Right DRL Lamp Control Circuit?

- The common symptoms include the right Daytime Running Light (DRL) not functioning properly or not turning on at all.

2. What are the possible causes of OBDII code B16D3?

- The code B16D3 can be triggered by issues such as a faulty DRL bulb, damaged wiring harness, or a malfunctioning DRL control module.

3. How can I diagnose the cause of OBDII code B16D3 myself?

- You can start by visually inspecting the right DRL bulb and wiring for any visible damage. Using a multimeter, you can also test the continuity of the wiring and check for power supply to the DRL.

4. Can a blown fuse cause OBDII code B16D3 to appear?

- Yes, a blown fuse in the DRL circuit can lead to the triggering of code B16D3. Checking and replacing any blown fuses is a good initial step in diagnosing this issue.

5. Is it safe to continue driving with OBDII code B16D3 illuminated?

- While the vehicle should still be safe to drive with this code, it is recommended to address the issue promptly to ensure proper visibility for yourself and other drivers on the road.

6. How can I reset OBDII code B16D3 after repairing the issue?

- Once you have fixed the underlying problem causing code B16D3, you can reset the code using an OBDII scanner or by disconnecting the car battery for a few minutes.

7. Do I need to replace the entire DRL system if I encounter code B16D3?

- Not necessarily. In many cases, the issue may be resolved by simply replacing a faulty DRL bulb, repairing damaged wiring, or addressing a malfunctioning control module.

8. Can extreme weather conditions affect the triggering of OBDII code B16D3?

- Yes, extreme weather conditions like heavy rain or snow can potentially cause water damage to the DRL components, leading to the appearance of code B16D3.

9. Is it possible for code B16D3 to reappear after being reset?

- If the root cause of the issue has not been properly addressed, there is a chance that code B16D3 may reappear after being reset. It is important to thoroughly diagnose and repair the problem.

10. How can regular maintenance help prevent OBDII code B16D3 from occurring?

- Regularly inspecting the DRL system, checking for any signs of wear or damage, and promptly replacing any failing components can help prevent the occurrence of code B16D3.