AutoCodes – Generic – B16D0

B16D0 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 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 1,909

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

What does this mean?

What are the Possible Causes of the DTC B16D0?

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?

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 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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Information for Specific Makes

B16D0 Chrysler — Left DRL Lamp Control Circuit Low
B16D0 Dodge — Left DRL Lamp Control Circuit Low
B16D0 Jeep — Left DRL Lamp Control Circuit Low
B16D0 RAM — Left DRL Lamp Control Circuit Low

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 Code

1. What are the common symptoms of OBDII code B16D0 (Left DRL Lamp Control Circuit Low)?

- Common symptoms include dim or non-functional left daytime running lights (DRL), dashboard warning lights, and flickering DRLs.

2. What are the possible causes of OBDII code B16D0 (Left DRL Lamp Control Circuit Low)?

- Possible causes include faulty wiring connections, a damaged DRL bulb, a defective DRL control module, or a malfunctioning body control module.

3. How can I diagnose the issue causing OBDII code B16D0 (Left DRL Lamp Control Circuit Low)?

- You can diagnose the issue by visually inspecting the wiring and connectors, testing the DRL bulb, checking the control modules with a diagnostic scanner, and performing a circuit continuity test.

4. What are some repair tips for fixing OBDII code B16D0 (Left DRL Lamp Control Circuit Low)?

- Repair tips include repairing or replacing damaged wiring, replacing the faulty DRL bulb, repairing or replacing the DRL control module, or reprogramming the body control module.

5. Can I continue driving with OBDII code B16D0 (Left DRL Lamp Control Circuit Low) without fixing it?

- It is not recommended to drive with this issue as it can affect your visibility on the road and may lead to safety concerns. It's best to address the problem promptly.

6. How much does it typically cost to repair OBDII code B16D0 (Left DRL Lamp Control Circuit Low)?

- The cost of repair can vary depending on the specific cause of the issue, but it may range from $50 to $300 for parts and labor.

7. Are there any preventive measures to avoid OBDII code B16D0 (Left DRL Lamp Control Circuit Low)?

- To prevent this issue, you can regularly inspect your DRLs, replace bulbs at the first sign of dimming, and ensure proper maintenance of your vehicle's electrical system.

8. Can weather conditions affect OBDII code B16D0 (Left DRL Lamp Control Circuit Low)?

- Extreme weather conditions or water exposure can potentially damage the wiring or components related to the DRL system, leading to the occurrence of this fault code.

9. Is it possible to reset OBDII code B16D0 (Left DRL Lamp Control Circuit Low) without fixing the underlying issue?

- While clearing the code may temporarily turn off the warning light, the issue will likely persist and trigger the code again until the root cause is addressed.

10. Can a DIY enthusiast fix OBDII code B16D0 (Left DRL Lamp Control Circuit Low) at home?

- Depending on the level of expertise and tools available, some DIY enthusiasts may be able to diagnose and repair this issue at home, especially for simpler causes like a burnt-out bulb or loose connection.