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Engine-Codes – RAM – B1629 RAM

B1629 RAM Code - Cargo Lamp Control Circuit Open

Quick Answer

The B1629 RAM code indicates a problem with the cargo lamp control circuit in the vehicle. Common causes include Faulty cargo lamp switch, Damaged wiring or connectors in the cargo lamp circuit, Blown fuse related to the 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
B1629 RAM indicates Cargo Lamp Control Circuit Open.
Common causes
Common causes include Faulty cargo lamp switch, Damaged wiring or connectors in the cargo lamp circuit, Blown fuse related to the 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 10, 2024
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Code B1629 RAM Description

The B1629 RAM code indicates a problem with the cargo lamp control circuit in the vehicle. This means that there is an open circuit, which is preventing the cargo lamp from functioning properly. The cargo lamp is an important feature in a vehicle, especially for trucks or SUVs, as it provides illumination for the cargo area. When the control circuit is open, it means that the electrical signal is unable to flow properly, resulting in the cargo lamp not turning on or functioning erratically.

OBDII Code B1629 RAM - Cargo Lamp Control Circuit Open
B1629 RAM Code - Cargo Lamp Control Circuit Open

Common Causes of B1629 RAM

  1. Faulty cargo lamp switch
  2. Damaged wiring or connectors in the cargo lamp circuit
  3. Blown fuse related to the cargo lamp
  4. Faulty cargo lamp bulb
  5. Issues with the body control module

Symptoms of B1629 RAM

  1. Cargo lamp not turning on
  2. Flickering or dimming of cargo lamp
  3. Dashboard warning light indicating an issue with the cargo lamp control circuit
  4. Fuse blowing repeatedly

How to Fix B1629 RAM

  1. Begin by inspecting the cargo lamp switch for any signs of damage or wear. Replace the switch if necessary.
  2. Check the wiring and connectors in the cargo lamp circuit for any breaks or corrosion. Repair or replace any damaged components.
  3. Inspect the cargo lamp bulb and replace it if it is burnt out or damaged.
  4. Test the fuse related to the cargo lamp and replace it if necessary.
  5. If the issue persists, further diagnostic testing may be required to check for problems with the body control module.

Cost to Fix B1629 RAM

The cost of repairing the B1629 RAM code can vary depending on the specific cause of the issue and the labor rates in your area. Typically, the cost of parts for this repair can range from $50 to $200, while labor costs can be anywhere from $100 to $300. Overall, you can expect to pay between $150 and $500 for resolving this issue. It's recommended to consult with a professional mechanic to get a more accurate estimate based on your vehicle's make and model. Keep in mind that labor rates can vary significantly, so it's best to inquire about rates at local auto repair shops.

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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 B1629 RAM Code

1. What are the common symptoms of OBDII code B1629 RAM Cargo Lamp Control Circuit Open?

- The common symptoms include the cargo lamp not turning on, flickering cargo lamp, or the cargo lamp staying on constantly.

2. What are the possible causes of code B1629 RAM Cargo Lamp Control Circuit Open?

- The code may be triggered by a faulty cargo lamp switch, damaged wiring in the cargo lamp circuit, or a defective cargo lamp control module.

3. How can I diagnose the issue causing code B1629 RAM Cargo Lamp Control Circuit Open?

- You can start by checking the cargo lamp fuse, inspecting the wiring for any signs of damage, and testing the cargo lamp switch for proper function using a multimeter.

4. Can a blown fuse cause OBDII code B1629 RAM Cargo Lamp Control Circuit Open?

- Yes, a blown fuse in the cargo lamp circuit can cause the control circuit to be open and trigger the B1629 code.

5. How can I repair OBDII code B1629 RAM Cargo Lamp Control Circuit Open?

- To repair the issue, you may need to replace the cargo lamp switch, repair any damaged wiring in the circuit, or replace the cargo lamp control module if it is faulty.

6. Is it safe to continue driving with OBDII code B1629 RAM Cargo Lamp Control Circuit Open?

- While the issue may not affect the vehicle's drivability, it is recommended to address the problem promptly to ensure the cargo lamp functions correctly.

7. Can a DIY enthusiast fix OBDII code B1629 RAM Cargo Lamp Control Circuit Open?

- Depending on your skill level and access to tools, you may be able to diagnose and repair the issue yourself. However, if you are unsure, it is best to consult a professional mechanic.

8. Will resetting the OBDII code B1629 RAM Cargo Lamp Control Circuit Open make the problem go away?

- Resetting the code may temporarily turn off the warning light, but it will not fix the underlying issue causing the cargo lamp control circuit to be open.

9. How much does it typically cost to repair OBDII code B1629 RAM Cargo Lamp Control Circuit Open at a repair shop?

- The cost of repair can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor.

10. Can extreme weather conditions affect the cargo lamp control circuit and trigger code B1629 RAM Cargo Lamp Control Circuit Open?

- Yes, extreme temperatures or moisture exposure can lead to corrosion or damage in the cargo lamp circuit, potentially causing the control circuit to be open and triggering the B1629 code.

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