AutoCodes – Dodge – B16D7 Dodge

B16D7 Dodge Code - Left Tail Lamp 1 Control Circuit

Quick Answer

The Body Control Module (BCM) receives the input from the headlamp switch requesting park lamp illumination. Common causes include Faulty Left Rear Park Lamp, Left Rear Park Lamp harness is open or shorted, Left Rear Park 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: B16D7 Dodge indicates Left Tail Lamp 1 Control Circuit.
Common causes: Common causes include Faulty Left Rear Park Lamp, Left Rear Park Lamp harness is open or shorted, Left Rear Park 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 3,235

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B16D7 Dodge Description

The Body Control Module (BCM) receives the input from the headlamp switch requesting park lamp illumination. The BCM provides a voltage output through the left rear park lamp 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 Rear Park Lamp Driver circuit sets the Diagnostic Trouble Code (DTC).

OBDII Code B16D7 Dodge - Left Tail Lamp 1 Control Circuit - AutoCodes.com — B16D7 Dodge Code - Left Tail Lamp 1 Control Circuit

What does this mean?

What are the Possible Causes of the DTC B16D7 Dodge?

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

How to Fix the DTC B16D7 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 does this mean?

Code Tech Notes

B16D7-11 LEFT TAILLAMP 1 CONTROL CIRCUIT SHORT TO GROUND
B16D7-15 LEFT TAILLAMP 1 CONTROL CIRCUIT SHORT TO BATTERY OR OPEN

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B16D7 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.

Need more information about the B16D7 Dodge code?

Need more information on how to fix the B16D7 Dodge code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B16D7 Dodge code diagnosed by a professional: Find a repair shop in your area

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 B16D7 Dodge Code

1. What does the OBDII code B16D7 mean on a Dodge vehicle?

The B16D7 code indicates an issue with the Left Tail Lamp 1 Control Circuit, which may involve a malfunction in the wiring, bulb, or related components.

2. What are the common symptoms of the B16D7 code?

Symptoms may include the left tail lamp not working, dim or flickering light, and a potential warning or error message on the dashboard.

3. What causes the B16D7 code to appear?

Common causes include a burnt-out tail lamp bulb, damaged wiring or connectors, a faulty lamp assembly, or a malfunctioning body control module (BCM).

4. How can I diagnose the B16D7 code on my Dodge?

Start by inspecting the left tail lamp bulb, checking for damaged or corroded wiring, and using a multimeter to test voltage in the circuit. A scan tool can also verify BCM faults.

5. Can I drive my Dodge with the B16D7 code active?

While the vehicle is still drivable, it's not recommended to drive without a functional tail lamp, as it can compromise safety and may result in a traffic violation.

6. How do I fix the B16D7 code on my Dodge?

Repairs may involve replacing the tail lamp bulb, fixing or replacing damaged wiring, cleaning corroded connectors, or reprogramming/repairing the BCM if necessary.

7. How much does it cost to repair the B16D7 code?

Repair costs vary depending on the issue, ranging from $10-$20 for a bulb replacement to $200-$500 for wiring repairs or BCM replacement.

8. Can a faulty tail lamp cause the B16D7 code?

Yes, a defective or failed left tail lamp assembly can trigger the B16D7 code due to a disruption in the control circuit.

9. Will resetting the code fix the B16D7 issue?

Clearing the code may temporarily turn off the warning, but the issue will return if the underlying problem isnâ€™t resolved.

10. Do I need a mechanic to fix the B16D7 code?

If the issue is a simple bulb replacement, you can fix it yourself. However, for wiring or BCM-related problems, professional diagnosis and repair are recommended.