AutoCodes - Buick - U240A BUICK

U240A BUICK Code - Transmission Range Control Module Chassis Expansion CAN Bus Off

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

|U240A BUICK code 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 do I fix the U240A BUICK code?

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.

|Cost of diagnosing the U240A BUICK code

Labor: 1.0

The cost of diagnosing the U240A BUICK 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.

|What are U240A BUICK code possible symptoms?

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

|U240A BUICK code description

The chassis high-speed General Motors Local Area Network (GMLAN)serial data circuits are serial data buses used to communicate information between the devices. The chassis high speed GMLAN serial data circuits also connect directly to the X84 Data Link Connector (DLC) for programming purposes. If this serial data system is inoperative, the devices will still communicate with the scan tool due to other serial data systems but not with each other. The device setting the Diagnostic Trouble Code (DTC) has attempted to establish communications on the chassis high-speed GMLAN serial data circuits more than 3 times.
OBDII Code U240a Buick - Transmission Range Control Module Chassis Expansion CAN Bus Off -

|Need more information with the U240A BUICK code?

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|Need help with a U240A BUICK code?

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|U240A BUICK code comments

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