AutoCodes – Generic – C2108

C2108 Code - Drivetrain Supply Voltage Circuit Short To Ground

Quick Answer

The Drive Train Control Module (DTCM) monitors the Drivetrain Sensor Supply voltage. Common causes include Drivetrain Supply Voltage Circuit Short To Ground, Faulty Drive Train Control Module (DTCM), Drive Train Control Module (DTCM) harness is open or shorted. 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: C2108 indicates Drivetrain Supply Voltage Circuit Short To Ground.
Common causes: Common causes include Drivetrain Supply Voltage Circuit Short To Ground, Faulty Drive Train Control Module (DTCM), Drive Train Control Module (DTCM) harness is open or shorted.
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 1,272

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 Mar 15, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C2108 Description

The Drive Train Control Module (DTCM) monitors the Drivetrain Sensor Supply voltage. The Drive Train Control Module (DTCM) sets the OBDII code when it detects that the Drivetrain Sensor Supply voltage is below 2.5 volts for 300 mS.

OBDII Code C2108 - Drivetrain Supply Voltage Circuit Short To Ground - AutoCodes.com — C2108 Code - Drivetrain Supply Voltage Circuit Short To Ground

What does this mean?

What are the Possible Causes of the DTC C2108?

Drivetrain Supply Voltage Circuit Short To Ground
Faulty Drive Train Control Module (DTCM)
Drive Train Control Module (DTCM) harness is open or shorted
Drive Train Control Module (DTCM) circuit poor electrical connection

How to Fix the DTC C2108?

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 C2108 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.

Need more information about the C2108 code?

Need more information on how to fix the C2108 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C2108 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C2108 Chrysler — Drivetrain Supply Voltage Circuit Short To Ground
C2108 Dodge — Drivetrain Supply Voltage Circuit Short To Ground
C2108 Jeep — Drivetrain Supply Voltage Circuit Short To Ground

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 C2108 Code

1. What are common symptoms of OBDII code C2108 (Drivetrain Supply Voltage Circuit Short To Ground)?

Symptoms may include issues with the drivetrain control module, warning lights on the dashboard, drivability problems, and potential stalling of the vehicle.

2. What causes the OBDII code C2108 to trigger?

This code is typically triggered by a short circuit between the drivetrain supply voltage circuit and ground, often caused by damaged wiring, faulty connectors, or a malfunctioning drivetrain control module.

3. How can I diagnose the drivetrain supply voltage circuit short to ground issue?

Diagnosis usually involves using a multimeter to test the voltage at various points in the circuit, inspecting the wiring and connectors for damage, and checking the drivetrain control module for proper functioning.

4. Is it safe to continue driving my vehicle with the C2108 trouble code?

It is not recommended to drive your vehicle with this code present, as it can lead to drivability issues and potential safety concerns. It is best to address the issue promptly.

5. What are some repair tips for fixing the drivetrain supply voltage circuit short to ground?

Repairing this issue often involves repairing or replacing damaged wiring, repairing connectors, or replacing the drivetrain control module if necessary. Proper diagnosis is key to an effective repair.

6. Can a DIY enthusiast fix the C2108 trouble code at home?

While some DIY enthusiasts may have the skills to diagnose and repair this issue, it is recommended to seek professional help, especially when it involves complex electrical systems like the drivetrain supply voltage circuit.

7. How much does it typically cost to repair the drivetrain supply voltage circuit short to ground issue?

The cost of repair can vary depending on the extent of the damage, the need for parts replacement, and labor costs. It is advisable to get a few quotes from different auto repair shops.

8. Will resetting the trouble codes make the C2108 code disappear permanently?

Resetting the trouble codes may temporarily clear the code, but if the underlying issue causing the C2108 code is not addressed, it is likely to reappear once the system detects the problem again.

9. Can extreme weather conditions cause the OBDII code C2108 to trigger?

Extreme weather conditions may not directly cause this code, but they can exacerbate existing issues with wiring or connectors, leading to a drivetrain supply voltage circuit short to ground.

10. How urgent is it to address the drivetrain supply voltage circuit short to ground issue?

It is important to address this issue promptly to prevent further damage to the drivetrain control module and ensure the safe operation of your vehicle.