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AutoCodes - Generic - U18D3

U18D3 Code - Lost Communication With Transmission Range Selector Control Module On Powertrain Expansion CAN Bus

- Code Popularity: 1,299 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC U18D3?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Transmission Range Control Module
  • Transmission Range Control Module harness is open or shorted
  • Transmission Range Control Module circuit poor electrical connection
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How to Fix the DTC U18D3?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U18D3 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code U18D3 Description

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the devices. The devices have prerecorded information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are used by the receiver device as an availability indication of the transmitter device. Each message contains the identification number of the transmitter device. The Diagnostic Trouble Code (DTC) will set a supervised periodic message that includes the transmitter device availability that has not been received.

OBDII Code U18D3 - Lost Communication With Transmission Range Selector Control Module On Powertrain Expansion CAN Bus - AutoCodes.com
U18D3 Code - Lost Communication With Transmission Range Selector Control Module On Powertrain Expansion CAN Bus

Need More Information on the Code?

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Information for Specific Makes

  • U18D3 Buick Lost Communication With Transmission Range Selector Control Module On Powertrain Expansion CAN Bus
  • U18D3 Cadillac Lost Communication With Transmission Range Selector Control Module On Powertrain Expansion CAN Bus
  • U18D3 Chevrolet Lost Communication With Transmission Range Selector Control Module On Powertrain Expansion CAN Bus
  • U18D3 GMC Lost Communication With Transmission Range Selector Control Module On Powertrain Expansion CAN Bus

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Code U18D3 comments

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