AutoCodes – Jeep – B16D0 Jeep

B16D0 Jeep Code - Left DRL Lamp Control Circuit Low

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: B16D0 Jeep indicates Left DRL Lamp Control Circuit Low.
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 2,306

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 B16D0 Jeep 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 B16D0 Jeep - Left DRL Lamp Control Circuit Low - AutoCodes.com — B16D0 Jeep Code - Left DRL Lamp Control Circuit Low

What does this mean?

What are the Possible Causes of the DTC B16D0 Jeep?

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 B16D0 Jeep?

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 B16D0 Jeep 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 B16D0 Jeep code?

Need more information on how to fix the B16D0 Jeep 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 B16D0 Jeep Code

1. What are the common symptoms of OBDII code B16D0 in a Jeep related to the Left DRL Lamp Control Circuit Low?

- Common symptoms include the left daytime running light (DRL) not functioning properly or remaining dim.

2. What are the possible causes of the B16D0 code in a Jeep?

- The code B16D0 typically indicates issues such as a faulty DRL lamp, damaged wiring, or a malfunctioning DRL control module.

3. How can I diagnose the B16D0 code related to the Left DRL Lamp Control Circuit Low in my Jeep?

- To diagnose the issue, you can start by visually inspecting the left DRL lamp and associated wiring for any visible damage. You may also use a multimeter to test the voltage and continuity in the circuit.

4. What are some DIY repair tips for fixing the B16D0 code in a Jeep?

- DIY repair tips may include checking and replacing the left DRL lamp, repairing any damaged wiring, or replacing the DRL control module if necessary.

5. Is it safe to drive my Jeep with the B16D0 code indicating a Left DRL Lamp Control Circuit Low issue?

- It is generally safe to drive your Jeep with this code, but it is important to address the issue promptly to ensure proper visibility and compliance with road safety regulations.

6. Can a loose connection cause the B16D0 code in a Jeep?

- Yes, a loose or poor connection in the left DRL lamp control circuit can trigger the B16D0 code due to the low voltage signal detected by the vehicle's onboard diagnostic system.

7. Do I need specialized tools to repair the B16D0 code in my Jeep?

- Basic tools such as a multimeter, wire connectors, and electrical tape may be sufficient for diagnosing and repairing the B16D0 code related to the Left DRL Lamp Control Circuit Low.

8. Will resetting the fault codes make the B16D0 code disappear permanently?

- Resetting the fault codes may temporarily clear the B16D0 code, but if the underlying issue causing the code is not addressed, it is likely to reappear after driving cycles.

9. How can I prevent the B16D0 code from reoccurring in my Jeep?

- Regularly inspecting the DRL system, ensuring proper connections, and promptly addressing any issues with the left DRL lamp can help prevent the B16D0 code from reoccurring.

10. Can extreme weather conditions affect the triggering of the B16D0 code in a Jeep?

- Yes, extreme weather conditions such as moisture or extreme temperatures can potentially impact the DRL system and contribute to triggering the B16D0 code in a Jeep.