Engine-Codes -
Generic -
U18D3
U18D3 - Lost Communication With Transmission Range Selector Control Module On Powertrain Expansion CAN Bus
Table of contents
U18D3 Possible Causes
- Faulty Transmission Range Control Module
- Transmission Range Control Module harness is open or shorted
- Transmission Range Control Module circuit poor electrical connection
How is the U18D3 code repair?
Start by checking 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.What is the cost to diagnose the U18D3 code
Labor: 1.0
The cost to diagnose the U18D3 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
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Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
U18D3 Meaning
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.More Information
Need more information on how to fix the U18D3 code?Get Access to Factory Service Manuals
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