AutoCodes – Dodge – B2108 Dodge

B2108 Dodge Code - Ignition Switch Sense Input Circuit Low

Quick Answer

The Instrument Cluster monitors Ignition Switch Sense Input Circuit. Common causes include Faulty Ignition Switch, Ignition Switch harness is open or shorted, Ignition 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: B2108 Dodge indicates Ignition Switch Sense Input Circuit Low.
Common causes: Common causes include Faulty Ignition Switch, Ignition Switch harness is open or shorted, Ignition 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 739

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 17, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2108 Dodge Description

The Instrument Cluster monitors Ignition Switch Sense Input Circuit. The Instrument Cluster sets the OBDII code when the Ignition Switch Sense circuit voltage less than 0.3 volts.

OBDII Code B2108 Dodge - Ignition Switch Sense Input Circuit Low - AutoCodes.com — B2108 Dodge Code - Ignition Switch Sense Input Circuit Low

What does this mean?

What are the Possible Causes of the DTC B2108 Dodge?

Faulty Ignition Switch
Ignition Switch harness is open or shorted
Ignition Switch circuit poor electrical connection
Faulty Instrument Cluster

How to Fix the DTC B2108 Dodge?

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 B2108 Dodge 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 B2108 Dodge Code

1. What are the common symptoms of OBDII code B2108 in a Dodge related to the Ignition Switch Sense Input Circuit Low?

The common symptoms include issues starting the vehicle, intermittent stalling, and possible loss of power to accessories.

2. What are the possible causes of the Ignition Switch Sense Input Circuit Low code B2108 in a Dodge?

The code can be triggered by a faulty ignition switch, damaged wiring or connectors in the ignition circuit, or a malfunctioning ignition switch sense input circuit.

3. How can I diagnose the cause of OBDII code B2108 related to the Ignition Switch Sense Input Circuit Low in my Dodge?

You can start by checking the wiring and connectors for any visible damage, testing the ignition switch for proper functionality, and using a diagnostic scanner to analyze the circuit input readings.

4. Can a DIY enthusiast repair the Ignition Switch Sense Input Circuit Low issue causing OBDII code B2108 in a Dodge?

If the issue is related to a simple wiring or connector problem, it might be possible for a skilled DIY enthusiast to repair. However, diagnosing and fixing issues with the ignition switch itself may require professional expertise.

5. Is it safe to continue driving my Dodge with OBDII code B2108 indicating an Ignition Switch Sense Input Circuit Low problem?

It is not recommended to drive the vehicle with this issue as it can lead to potential safety hazards like stalling while driving or loss of control over the vehicle.

6. Will resetting the OBDII code B2108 related to the Ignition Switch Sense Input Circuit Low in my Dodge make the problem go away?

Resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the fault code to appear.

7. How much does it typically cost to repair the Ignition Switch Sense Input Circuit Low problem causing OBDII code B2108 in a Dodge?

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

8. Can extreme weather conditions impact the occurrence of OBDII code B2108 related to the Ignition Switch Sense Input Circuit Low in a Dodge?

Extreme temperatures or moisture can potentially exacerbate existing issues with the ignition switch or wiring, leading to the triggering of the fault code.

9. Are there any preventive maintenance steps I can take to avoid encountering the Ignition Switch Sense Input Circuit Low issue triggering OBDII code B2108 in my Dodge?

Regularly checking and maintaining the condition of the ignition system components, such as the switch and wiring, can help prevent issues that may lead to the fault code.

10. How long does it typically take for a mechanic to diagnose and repair the Ignition Switch Sense Input Circuit Low problem causing OBDII code B2108 in a Dodge?

The diagnosis and repair process can usually be completed within a few hours, but it may vary depending on the complexity of the issue and the availability of parts.