U0104 Buick Code - Lost Communication With Distance Sensing and Cruise Control Module
Quick Answer
Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Distance Sensing and Cruise Control (DSCC) Module, DSCC Module harness is open or shorted, DSCC Module circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- U0104 Buick indicates Lost Communication With Distance Sensing and Cruise Control Module.
- Common causes
- Common causes include Faulty Distance Sensing and Cruise Control (DSCC) Module, DSCC Module harness is open or shorted, DSCC Module circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code U0104 Buick Description
What are the Possible Causes of the DTC U0104 Buick?
- Faulty Distance Sensing and Cruise Control (DSCC) Module
- DSCC Module harness is open or shorted
- DSCC Module circuit poor electrical connection
How to Fix the DTC U0104 Buick?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the U0104 Buick code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the U0104 Buick code?
Need more information on how to fix the U0104 Buick code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the U0104 Buick code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about U0104 Buick Code
What does the OBDII code U0104 mean on a Buick?
The U0104 code indicates a loss of communication between the vehicle's main computer and the Distance Sensing and Cruise Control Module (DSCCM).
What are the common symptoms of the U0104 code in a Buick?
Symptoms may include the cruise control not working, erratic behavior of driver-assist features, or the illumination of the check engine light.
What causes the U0104 code to appear in a Buick?
Common causes include damaged wiring or connectors, a failed DSCCM, a malfunctioning CAN bus network, or a problem with the power or ground supply to the module.
Can I still drive my Buick with the U0104 code active?
Yes, but some systems like adaptive cruise control or other driver-assist features may not function properly, which could affect safety.
How can I diagnose the U0104 code on my Buick?
Start by inspecting the wiring and connectors for damage, check the power and ground supply to the DSCCM, and use a scan tool to confirm communication issues with the module.
What tools are needed to troubleshoot the U0104 code?
You'll need a diagnostic scan tool with CAN bus capabilities, a multimeter for checking power and ground, and wiring diagrams specific to your Buick model.
How do I fix the U0104 code in my Buick?
Repairs may involve fixing or replacing damaged wiring or connectors, replacing the DSCCM if it’s faulty, or addressing issues with the CAN bus network.
How much does it cost to repair the U0104 code on a Buick?
Repair costs vary but can range from $100 for simple wiring repairs to $1,000 or more if the DSCCM needs replacement.
Can a low battery cause the U0104 code in a Buick?
Yes, a weak or low battery can disrupt communication between modules and potentially trigger the U0104 code.
Is it necessary to reprogram the DSCCM after replacement?
In most cases, the new DSCCM will require programming or calibration using a professional-grade scan tool to ensure proper operation.
Discuss the causes and fixes for U0104 Buick OBDII Code
Code U0104 Buick comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
