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U3509 CADILLAC Code - Control Module Supply Circuit 3 Low Voltage

- Code Popularity: 287 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
By AutoCodes.com - Updated Jun 18, 2020
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|U3509 CADILLAC code possible causes

  • Faulty Control Module setting the code
  • Control Module harness is open or shorted
  • Control Module circuit poor electrical connection

|How do I fix code U3509 CADILLAC 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.

Does your car have Safety Recalls? → Check here

|Cost of diagnosing U3509 CADILLAC code

Labor: 1.0

The cost of diagnosing the U3509 CADILLAC 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 U3509 CADILLAC code possible symptoms?

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

|U3509 CADILLAC code description

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. With the ignition is ON, the Diagnostic Trouble Code (DTC) will set when the control module or sensor detects a system voltage of less than approximately 9 V for approximately 5 s.

OBDII Code u3509 cadillac - Control Module Supply Circuit 3 Low Voltage - AutoCodes.com
U3509 CADILLAC Code - Control Module Supply Circuit 3 Low Voltage

|Need more information with the U3509 CADILLAC code?

Need more information on how to fix the U3509 CADILLAC code? Get Access to Factory Service Manuals

|Need help with a U3509 CADILLAC code?

Get the u3509 cadillac code diagnosed by a professional: Find a repair shop in your area

|U3509 CADILLAC code comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the u3509 cadillac code? Have you replaced any parts?
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