| All About OBDII Engine Codes
AutoCodes - RAM - U0103 RAM

U0103 RAM Code - Lost Communication With Electric Gear Shift Module

- Code Popularity: 561 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
Share on Facebook   Share on Twitter   Share on Linkedin

Code U0103 RAM Possible Causes

  • Faulty Transmission Control Module (TCM)
  • Transmission Control Module harness is open or shorted
  • Transmission Control Module circuit poor electrical connection

How do I Fix the Code U0103 RAM?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Does your RAM have Safety Recalls? → Check here

What is the Cost to Diagnose the Code U0103 RAM?

Labor: 1.0

The cost of diagnosing the U0103 RAM code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

What are Code U0103 RAM Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code U0103 RAM Description

The Transmission Control Module (TCM) receives information from the Engine, Anti-lock Brake System, and the Electronic Shift Modules (ESM) over the CAN C bus. The CAN C bus is a high-speed communication bus that allows real-time control capability between various controllers. Most messages are sent every 20 mSec, this means critical information can be shared between multiple controllers almost instantaneously. The CAN C bus is a two-wire bus with a CAN (+) and a CAN (-) circuit. To reduce the potential of radio and other electrical noise interference, the CAN Bus circuit wiring is manufactured using a twisted pair configuration within the electrical wiring harness. The Diagnostic Trouble Code (DTC) will set if a valid CAN ID was not received in the required time from the Electronic Gear Shift Module.

OBDII Code U0103 RAM - Lost Communication With Electric Gear Shift Module -
U0103 RAM Code - Lost Communication With Electric Gear Shift Module

Need More Information on the U0103 RAM Code?

Need more information on how to fix the U0103 RAM code? Get Access to Factory Service Manuals

Need Help with the U0103 RAM Code?

Get the U0103 RAM code diagnosed by a professional: Find a repair shop in your area

Code U0103 RAM comments

Help us improve Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the U0103 RAM code? Have you replaced any parts?
Any information is appreciated. Thanks