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U240D Code - Transmission Range Selector Control Module Powertrain Expansion CAN Bus Off

- Code Popularity: 269 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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By AutoCodes.com - Updated Jun 17, 2020
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|Code U240D Possible Causes

  • Faulty Transmission Range Selector Control Module
  • Transmission Range Selector Control Module harness is open or shorted
  • Transmission Range Selector Control Module circuit poor electrical connection

|How do I Fix the Code U240D?

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 Car have Safety Recalls? → Check here

|What is the Cost to Diagnose the Code U240D?

Labor: 1.0

The cost of diagnosing the U240D 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 U240D Possible Symptoms?

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

|Code U240D Description

The powertrain high-speed General Motors Local Area Network (GMLAN)serial data circuits are serial data buses used to communicate information between the devices. The powertrain 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 powertrain high-speed GMLAN serial data circuits more than 3 times.

OBDII Code U240D - Transmission Range Selector Control Module Powertrain Expansion CAN Bus Off - AutoCodes.com
U240D Code - Transmission Range Selector Control Module Powertrain Expansion CAN Bus Off

|Need More Information on the U240D Code?

Need more information on how to fix the U240D code? Get Access to Factory Service Manuals

|Information for Specific Makes

  • U240D Buick Transmission Range Selector Control Module Powertrain Expansion CAN Bus Off
  • U240D Cadillac Transmission Range Selector Control Module Powertrain Expansion CAN Bus Off
  • U240D Chevrolet Transmission Range Selector Control Module Powertrain Expansion CAN Bus Off
  • U240D GMC Transmission Range Selector Control Module Powertrain Expansion CAN Bus Off

|Need Help with the U240D Code?

Get the U240D code diagnosed by a professional: Find a repair shop in your area

|Code U240D comments

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