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U0103 Dodge Code - Lost Communication With Electric Gear Shift Module

- Code Popularity: 2,904 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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Code U0103 Dodge 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 Dodge?

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 Dodge have Safety Recalls? → Check here

What is the Cost to Diagnose the Code U0103 Dodge?

Labor: 1.0

The cost of diagnosing the U0103 Dodge 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 Dodge Possible Symptoms?

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

Code U0103 Dodge 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 Dodge - Lost Communication With Electric Gear Shift Module -
U0103 Dodge Code - Lost Communication With Electric Gear Shift Module

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