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Engine-Codes – RAM – B1627 RAM

B1627 RAM Code - Cargo Lamp Control Circuit Low

Quick Answer

The B1627 diagnostic trouble code (DTC) indicates a problem with the cargo lamp control circuit being lower than the expected voltage range. Common causes include Damaged or corroded wiring in the cargo lamp circuit, Faulty cargo lamp control module, Blown fuse related to cargo lamp. 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
B1627 RAM indicates Cargo Lamp Control Circuit Low.
Common causes
Common causes include Damaged or corroded wiring in the cargo lamp circuit, Faulty cargo lamp control module, Blown fuse related to cargo lamp.
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 29, 2024
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Code B1627 RAM Description

The B1627 diagnostic trouble code (DTC) indicates a problem with the cargo lamp control circuit being lower than the expected voltage range. This code is typically found in vehicles equipped with a cargo lamp that is controlled electronically. The cargo lamp is used to illuminate the truck bed or cargo area of the vehicle, providing visibility for loading and unloading items in low-light conditions.

OBDII Code B1627 RAM - Cargo Lamp Control Circuit Low
B1627 RAM Code - Cargo Lamp Control Circuit Low

Common Causes of B1627 RAM

  1. Damaged or corroded wiring in the cargo lamp circuit
  2. Faulty cargo lamp control module
  3. Blown fuse related to cargo lamp
  4. Malfunctioning cargo lamp bulb
  5. Poor electrical connection in the cargo lamp circuit

Symptoms of B1627 RAM

  1. Cargo lamp not turning on when activated
  2. Dim or flickering cargo lamp
  3. Dashboard warning light indicating an issue with cargo lamp
  4. Fuse related to cargo lamp blowing repeatedly

How to Fix B1627 RAM

  1. Begin by inspecting the cargo lamp bulb to ensure it is not burnt out. Replace if necessary.
  2. Check the cargo lamp fuse for any signs of damage and replace if blown.
  3. Inspect the wiring in the cargo lamp circuit for any damage or corrosion. Repair or replace as needed.
  4. Test the cargo lamp control module for proper functionality and replace if faulty.
  5. Clear the DTC with a scan tool after completing repairs and test the cargo lamp to ensure it is functioning correctly.

Cost to Fix B1627 RAM

The cost of repairing the B1627 code can vary depending on the specific cause of the issue. In general, the cost of parts such as a cargo lamp bulb, fuse, or wiring repair kit can range from $20 to $100. Labor costs at an auto repair shop can range from $80 to $150 per hour. The total cost of repairs for this issue could range from $100 to $300 or more, depending on the extent of the problem and the rates charged by the repair facility. It is recommended to consult with a professional technician to get an accurate estimate based on your vehicle's make and model.

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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 B1627 RAM Code

1. What does the OBDII code B1627 mean for a RAM vehicle?

B1627 indicates an issue with the Cargo Lamp Control Circuit, specifically that it is reading a low voltage condition.

2. What are the common symptoms of the B1627 code?

Symptoms include the cargo lamp not functioning, flickering, or staying on/off when it shouldn’t.

3. What causes the B1627 code to set?

Common causes include a faulty cargo lamp bulb, damaged wiring or connectors in the circuit, a malfunctioning switch, or a defective body control module (BCM).

4. Can a blown fuse cause the B1627 code?

Yes, a blown fuse in the cargo lamp circuit can disrupt power flow and trigger the code.

5. How do I diagnose the B1627 code?

Start by inspecting the cargo lamp bulb, wiring, and connectors for damage or corrosion. Then, check the fuse and test the switch and BCM for proper operation.

6. Can I drive with the B1627 code active?

Yes, you can drive with this code active, but the cargo lamp may not work properly, which could be inconvenient or unsafe in low-light conditions.

7. How do I fix the B1627 code?

Repairs may include replacing a blown fuse, repairing damaged wiring, replacing a faulty bulb, or replacing the cargo lamp switch or BCM if necessary.

8. How much does it cost to repair the B1627 code?

Repair costs vary but may range from $20–$50 for a bulb or fuse replacement, while BCM replacement may cost $300–$800 depending on labor.

9. Can the B1627 code clear itself?

No, the code typically won’t clear itself until the underlying issue is resolved and the code is cleared with a scan tool.

10. Is the B1627 code a result of an electrical short?

It can be. A short to ground or damaged wiring in the cargo lamp circuit is a common cause of this code.

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