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Engine-Codes – RAM – B2860 RAM

B2860 RAM Code - Door Ambient Light Control Circuit

Quick Answer

The B2860 diagnostic trouble code (DTC) refers to an issue with the door ambient light control circuit in a vehicle. Common causes include Faulty ambient light sensor, Damaged wiring or connectors in the door ambient light circuit, Defective door control module. 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
B2860 RAM indicates Door Ambient Light Control Circuit.
Common causes
Common causes include Faulty ambient light sensor, Damaged wiring or connectors in the door ambient light circuit, Defective door control module.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 19, 2024
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Code B2860 RAM Description

The B2860 diagnostic trouble code (DTC) refers to an issue with the door ambient light control circuit in a vehicle. This code indicates that there is a malfunction in the system responsible for controlling the ambient lighting inside the vehicle's doors. Ambient lighting is a feature that enhances the interior aesthetics of a vehicle by providing soft, indirect lighting in various colors.

OBDII Code B2860 RAM - Door Ambient Light Control Circuit
B2860 RAM Code - Door Ambient Light Control Circuit

Common Causes of B2860 RAM

  1. Faulty ambient light sensor.
  2. Damaged wiring or connectors in the door ambient light circuit.
  3. Defective door control module.
  4. Corrosion or moisture damage in the ambient lighting system components.
  5. Electrical issues such as a blown fuse related to the ambient lighting system.

Symptoms of B2860 RAM

  1. Ambient lights not turning on when the doors are opened.
  2. Inconsistent or flickering ambient lighting.
  3. Dim or excessively bright ambient lighting.
  4. Ambient lights staying on even when the doors are closed.
  5. Dashboard warning light indicating an issue with the ambient lighting system.

How to Fix B2860 RAM

  1. Begin by conducting a visual inspection of the ambient lighting system components, including the sensors, wiring, and control modules, to identify any visible damage or issues.
  2. Use a multimeter to test the continuity of the wiring and connectors in the door ambient light circuit to pinpoint any electrical faults.
  3. Check the ambient light sensor for proper functionality and replace it if necessary.
  4. Inspect the door control module for any signs of malfunction and replace it if deemed faulty.
  5. Clear the DTC from the vehicle's computer system using an OBD-II scanner after completing the repairs and testing the ambient lighting system to ensure proper operation.

Cost to Fix B2860 RAM

The cost of repairing the door ambient light control circuit can vary depending on the specific components that need to be replaced and the labor rates at the auto repair shop. On average, the parts for this repair could range from $50 to $200, while the labor costs may fall between $100 and $300. Keep in mind that these estimates are general figures, and the actual costs may differ based on the vehicle's make and model, the location of the repair shop, and the extent of the repairs needed. It is recommended to obtain quotes from multiple repair facilities to compare prices and find the most cost-effective solution.

What does this mean?

Tech Notes for B2860 RAM

B2860-11 DOOR AMBIENT LIGHT CONTROL CIRCUIT SHORT TO GROUND

B2860-15 DOOR AMBIENT LIGHT CONTROL CIRCUIT SHORT TO BATTERY OR OPEN

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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 B2860 RAM Code

1. What does OBDII code B2860 RAM mean?

Code B2860 in a RAM vehicle refers to an issue with the Door Ambient Light Control Circuit, indicating a fault in the wiring or control system for the ambient lighting in the door.

2. What are the symptoms of code B2860 in a RAM vehicle?

Common symptoms include non-functional or flickering door ambient lights, dim lighting, or a warning light on the dashboard.

3. What causes the B2860 code to appear?

The code can be triggered by damaged wiring, a faulty ambient light module, a blown fuse, a malfunctioning door control module, or a poor electrical connection.

4. How can I diagnose the B2860 code?

Start by checking the door ambient light wiring and connectors for damage or corrosion. Use a multimeter to test for continuity and inspect the door control module for proper functionality.

5. Can I still drive my RAM vehicle with a B2860 code?

Yes, the B2860 code does not affect the drivability of the vehicle. However, the door ambient lighting may not function properly until the issue is resolved.

6. How do I fix a B2860 code in a RAM vehicle?

Repairs may include replacing damaged wiring, cleaning or reconnecting corroded connectors, replacing the door ambient light module, or reprogramming the door control module.

7. Can a blown fuse cause the B2860 code?

Yes, a blown fuse in the circuit powering the door ambient lights can cause this code to appear. Check and replace the fuse if necessary.

8. Is the B2860 code covered under warranty?

It depends on your vehicle’s warranty. Ambient light issues may be covered under a factory warranty or an extended warranty if the vehicle is still within the coverage period.

9. How much does it cost to fix the B2860 code?

Repair costs vary depending on the cause. Simple fixes like replacing a fuse or repairing wiring may cost under $100, while replacing a door control module or ambient light module could be more expensive.

10. Can a software update fix the B2860 code?

In some cases, a software update for the door control module may resolve the issue if the fault is related to a programming glitch. Check with your dealership for updates.

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