AutoCodes – Dodge – B16D1 Dodge

B16D1 Dodge Code - Left DRL Lamp Control Circuit High

Quick Answer

The Body Control Module (BCM) monitors the Left Daytime Running Lights (DRL) Lamp. Common causes include Faulty Left Front Headlamp Assembly, Left Front Headlamp Assembly harness is open or shorted, Left 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: B16D1 Dodge indicates Left DRL Lamp Control Circuit High.
Common causes: Common causes include Faulty Left Front Headlamp Assembly, Left Front Headlamp Assembly harness is open or shorted, Left 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 743

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
Cost to Diagnose
FAQs
Comments
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Code B16D1 Dodge Description

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

OBDII Code B16D1 Dodge - Left DRL Lamp Control Circuit High - AutoCodes.com — B16D1 Dodge Code - Left DRL Lamp Control Circuit High

What does this mean?

What are the Possible Causes of the DTC B16D1 Dodge?

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

How to Fix the DTC B16D1 Dodge?

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 B16D1 Dodge 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 B16D1 Dodge Code

1. What does the OBDII code B16D1 mean on a Dodge vehicle?

The B16D1 code indicates that there is an issue with the left daytime running light (DRL) control circuit, specifically that the circuit is experiencing higher than normal voltage.

2. What are the common symptoms of code B16D1 in a Dodge?

Symptoms may include the left daytime running light not functioning properly or not lighting up at all. You might also see a warning light on the dashboard indicating a problem with the DRLs.

3. What can cause the B16D1 code to appear on my Dodge?

Possible causes include a faulty left DRL lamp, damaged wiring or connectors in the DRL circuit, or a problem with the body control module (BCM) that controls the lighting.

4. How is the B16D1 code diagnosed in a Dodge vehicle?

Diagnosis involves using a scan tool to confirm the code, visually inspecting the left DRL and its wiring for damage or disconnections, and testing the voltage levels in the control circuit to identify any abnormalities.

5. What steps are involved in repairing the code B16D1 on a Dodge?

Repair may involve replacing the faulty left DRL lamp, repairing or replacing damaged wiring or connectors, or potentially replacing or reprogramming the body control module if it is found to be defective.

6. Can I drive my Dodge if it is showing the B16D1 code?

While it might be safe to drive, it is not advisable as the daytime running lights are important for visibility during daytime driving. It is best to address the issue promptly to ensure safety.

7. How urgent is it to fix the B16D1 code on a Dodge?

It is moderately urgent to fix this issue because daytime running lights are crucial for safety during daylight hours, helping to make your vehicle more visible to other drivers.

8. Does fixing the B16D1 code typically require a dealership visit, or can it be handled by an independent mechanic?

This issue can generally be addressed by an independent mechanic equipped with the right diagnostic tools and knowledge of Dodge electrical systems. However, if the problem involves the body control module, dealership-level equipment might be necessary for reprogramming.

9. What tools are required to diagnose and fix the B16D1 code on a Dodge?

Tools needed include a diagnostic scan tool, a multimeter for testing circuit voltages, and basic hand tools for accessing and repairing the DRL assembly and associated wiring.

10. Is the B16D1 code common in Dodge vehicles, or is it a rare occurrence?

The occurrence of code B16D1 can vary, but issues with daytime running lights are not uncommon in vehicles that feature them, including various models of Dodge. Regular vehicle maintenance and checks can help prevent such issues.