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B1672 RAM Code - Power Liftgate Latch Release Ratchet Primary Switch Performance

Quick Answer

The B1672 diagnostic trouble code (DTC) indicates a problem with the power liftgate latch release ratchet primary switch performance. Common causes include Faulty power liftgate latch release ratchet primary switch, Wiring issues or electrical problems in the power liftgate system, Defective liftgate 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
B1672 RAM indicates Power Liftgate Latch Release Ratchet Primary Switch Performance.
Common causes
Common causes include Faulty power liftgate latch release ratchet primary switch, Wiring issues or electrical problems in the power liftgate system, Defective liftgate 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 11, 2024
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Code B1672 RAM Description

The B1672 diagnostic trouble code (DTC) indicates a problem with the power liftgate latch release ratchet primary switch performance. This code is typically found in vehicles equipped with a power liftgate system, which allows the rear door to be opened and closed automatically at the push of a button. The primary switch in the power liftgate latch release ratchet is responsible for initiating the release mechanism that allows the liftgate to open. When this switch fails to perform as expected, it can lead to issues with the power liftgate system.

OBDII Code B1672 RAM - Power Liftgate Latch Release Ratchet Primary Switch Performance
B1672 RAM Code - Power Liftgate Latch Release Ratchet Primary Switch Performance

Common Causes of B1672 RAM

  1. Faulty power liftgate latch release ratchet primary switch.
  2. Wiring issues or electrical problems in the power liftgate system.
  3. Defective liftgate control module.
  4. Mechanical issues with the liftgate mechanism.
  5. Water or moisture intrusion causing corrosion or damage to components.

Symptoms of B1672 RAM

  1. Power liftgate fails to open or close when requested.
  2. Unusual noises coming from the power liftgate mechanism.
  3. Power liftgate gets stuck in a partially open or closed position.
  4. Power liftgate opens or closes intermittently.

How to Fix B1672 RAM

  1. Diagnose the issue by using a scan tool to retrieve the DTC and check for any related codes.
  2. Inspect the power liftgate latch release ratchet primary switch for proper operation and continuity.
  3. Check the wiring and connections in the power liftgate system for any damage or corrosion.
  4. Test the liftgate control module to ensure it is functioning correctly.
  5. Replace the faulty power liftgate latch release ratchet primary switch if necessary, and clear the DTC from the vehicle's memory.

Cost to Fix B1672 RAM

The typical repair costs for addressing a B1672 code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, replacing a faulty power liftgate latch release ratchet primary switch can cost anywhere from $150 to $300 for the part alone. Labor costs can add an additional $100 to $200, bringing the total repair cost to around $250 to $500. It's important to keep in mind that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and labor rates at the auto repair shop. It's recommended to obtain a detailed quote from a trusted mechanic or dealership before proceeding with the repairs.

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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 B1672 RAM Code

1. What does OBDII code B1672 mean on a RAM vehicle?

B1672 indicates an issue with the Power Liftgate Latch Release Ratchet Primary Switch Performance, meaning the switch is not functioning as expected.

2. What are common symptoms of code B1672 in a RAM vehicle?

Symptoms may include the liftgate not opening or closing properly, unusual noises from the liftgate mechanism, or a warning light on the dashboard.

3. What causes the B1672 code to appear in a RAM?

This code can be triggered by a faulty primary switch, damaged wiring or connectors, misaligned latch components, or an issue with the power liftgate control module.

4. Can I still drive my RAM with the B1672 code?

Yes, you can still drive the vehicle, but the power liftgate functionality may be impaired, causing inconvenience or difficulty accessing the rear cargo area.

5. How do I diagnose the B1672 code?

Start by inspecting the liftgate latch switch, wiring, and connectors for damage or corrosion. Use a scan tool to monitor switch performance and test the power liftgate system.

6. What are possible fixes for the B1672 code?

Repairs may include replacing the liftgate latch release ratchet switch, repairing damaged wiring, cleaning corroded connectors, or reprogramming the liftgate control module.

7. How much does it cost to fix the B1672 code?

Repair costs vary but typically range from $100 to $400, depending on whether the primary switch or additional components need replacement.

8. Can a weak battery cause the B1672 code?

Yes, a weak or failing battery can cause electrical issues, including improper operation of the liftgate system, potentially triggering the code.

9. Is it necessary to reprogram the liftgate control module after fixing the B1672 code?

In some cases, reprogramming or resetting the control module may be required to ensure proper functionality of the power liftgate system.

10. How can I prevent the B1672 code from returning?

Regular maintenance, such as keeping the liftgate components clean and inspecting wiring and connectors for damage, can help prevent this code from recurring.

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