AutoCodes – RAM – B1F08 RAM

B1F08 RAM Code - Terrain Switch Bank Module Internal

Quick Answer

The Terrain Switch Bank Module monitors the Transfer Case Switch. Common causes include Faulty Transfer Case Switch, Transfer Case Switch harness is open or shorted, Transfer Case Switch 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: B1F08 RAM indicates Terrain Switch Bank Module Internal.
Common causes: Common causes include Faulty Transfer Case Switch, Transfer Case Switch harness is open or shorted, Transfer Case Switch 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 652

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 Sep 05, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1F08 RAM Description

The Terrain Switch Bank Module monitors the Transfer Case Switch. The Terrain Switch Bank Module sets the OBDII code when the Transfer Case Switch detects an internal fault.

OBDII Code B1F08 RAM - Terrain Switch Bank Module Internal - AutoCodes.com — B1F08 RAM Code - Terrain Switch Bank Module Internal

What does this mean?

What are the Possible Causes of the DTC B1F08 RAM?

Faulty Transfer Case Switch
Transfer Case Switch harness is open or shorted
Transfer Case Switch circuit poor electrical connection

How to Fix the DTC B1F08 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 B1F08 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 B1F08 RAM Code

1. What are the common symptoms of OBDII code B1F08 RAM Terrain Switch Bank Module Internal?

The common symptoms include issues with the terrain selection system, erratic vehicle behavior, and possible warning lights on the dashboard.

2. What are the possible causes of OBDII code B1F08 RAM Terrain Switch Bank Module Internal?

The code can be triggered by a faulty terrain switch bank module, wiring issues, or a malfunction in the vehicle's control system.

3. How can I diagnose the OBDII code B1F08 RAM Terrain Switch Bank Module Internal?

Diagnosing the code typically involves using a diagnostic scanner to retrieve the code, inspecting the wiring and connections, and testing the terrain switch bank module for proper functionality.

4. Can I still drive my vehicle with the OBDII code B1F08 RAM Terrain Switch Bank Module Internal?

It is not recommended to drive the vehicle with this code present, as it can lead to unsafe driving conditions and potential further damage to the vehicle.

5. How can I repair OBDII code B1F08 RAM Terrain Switch Bank Module Internal?

Repairing the issue may involve replacing the faulty terrain switch bank module, repairing any damaged wiring, or reprogramming the vehicle's control system.

6. Is it possible to reset the OBDII code B1F08 RAM Terrain Switch Bank Module Internal?

Resetting the code can be done using a diagnostic scanner to clear the code after the underlying issue has been addressed and repaired.

7. Can a DIY enthusiast fix the OBDII code B1F08 RAM Terrain Switch Bank Module Internal?

While some basic troubleshooting steps can be performed by a DIY enthusiast, diagnosing and repairing this code may require advanced automotive knowledge and specialized tools.

8. How much does it typically cost to repair OBDII code B1F08 RAM Terrain Switch Bank Module Internal?

The cost of repair can vary depending on the exact cause of the issue, but it may involve parts and labor expenses ranging from a few hundred to over a thousand dollars.

9. Are there any preventive maintenance tips to avoid OBDII code B1F08 RAM Terrain Switch Bank Module Internal?

Regularly inspecting the terrain switch bank module, ensuring proper wiring connections, and following the manufacturer's recommended maintenance schedule can help prevent this issue.

10. Can OBDII code B1F08 RAM Terrain Switch Bank Module Internal affect the overall performance of the vehicle?

Yes, this code can affect the vehicle's performance by causing issues with the terrain selection system, which may impact drivability and overall vehicle control.