AutoCodes – RAM – B1628 RAM

B1628 RAM Code - Cargo Lamp Control Circuit High

Quick Answer

The Instrument Cluster monitors the Cargo Lamp. Common causes include Faulty Cargo Lamp, Cargo Lamp harness is open or shorted, Cargo 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: B1628 RAM indicates Cargo Lamp Control Circuit High.
Common causes: Common causes include Faulty Cargo Lamp, Cargo Lamp harness is open or shorted, Cargo 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.

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Code Popularity 743

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 May 24, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1628 RAM Description

The Instrument Cluster monitors the Cargo Lamp. The Instrument Cluster sets the OBDII code when the Cargo Lamp is not to factory specifications.

OBDII Code B1628 RAM - Cargo Lamp Control Circuit High - AutoCodes.com — B1628 RAM Code - Cargo Lamp Control Circuit High

What does this mean?

What are the Possible Causes of the DTC B1628 RAM?

Faulty Cargo Lamp
Cargo Lamp harness is open or shorted
Cargo Lamp circuit poor electrical connection
Faulty Instrument Cluster

How to Fix the DTC B1628 RAM?

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 B1628 RAM 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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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 B1628 RAM Code

1. What are the common symptoms of OBDII code B1628 RAM?

The common symptoms of OBDII code B1628 RAM include the cargo lamp remaining on or flickering intermittently, even when it is not supposed to be illuminated.

2. What are the possible causes of the Cargo Lamp Control Circuit High code B1628 RAM?

The possible causes of code B1628 RAM include a faulty cargo lamp switch, damaged wiring in the cargo lamp circuit, or a malfunctioning body control module.

3. How can I diagnose the cause of OBDII code B1628 RAM?

To diagnose the cause of code B1628 RAM, you can start by visually inspecting the cargo lamp switch and wiring for any visible damage. You can also use a multimeter to test the continuity and voltage in the circuit to pinpoint the issue.

4. What are some repair tips for fixing code B1628 RAM?

Some repair tips for addressing code B1628 RAM include checking and replacing the cargo lamp switch if necessary, repairing any damaged wiring in the circuit, and resetting the body control module to clear the code.

5. Can I continue driving my vehicle with OBDII code B1628 RAM?

It is generally safe to continue driving your vehicle with code B1628 RAM, especially if the cargo lamp is the only affected component. However, it is recommended to address the issue promptly to avoid any potential electrical issues or draining of the battery.

6. How do I reset OBDII code B1628 RAM after making repairs?

You can reset OBDII code B1628 RAM using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes. After resetting the code, monitor the cargo lamp to ensure the issue has been resolved.

7. Can extreme weather conditions trigger OBDII code B1628 RAM?

Extreme weather conditions such as excessive heat or moisture can potentially cause electrical issues in the cargo lamp circuit, leading to the triggering of code B1628 RAM. It is essential to inspect and repair any weather-related damage promptly.

8. Is OBDII code B1628 RAM a common issue in certain vehicle makes and models?

Code B1628 RAM may be more common in certain vehicle makes and models, particularly those with cargo lamp control circuits that are prone to wiring issues or component failures. However, it can occur in any vehicle with a cargo lamp system.

9. Are there any preventive maintenance steps to avoid OBDII code B1628 RAM?

To prevent OBDII code B1628 RAM, you can periodically inspect the cargo lamp circuit for any signs of wear or damage, avoid overloading the cargo area to prevent strain on the wiring, and promptly address any electrical issues as they arise.

10. Can I fix OBDII code B1628 RAM myself, or do I need to take it to a professional mechanic?

If you have experience with automotive electrical systems and access to the necessary tools, you may be able to diagnose and repair OBDII code B1628 RAM yourself. However, if you are unsure or uncomfortable working on electrical components, it is advisable to seek the assistance of a professional mechanic.