AutoCodes.com | All About OBDII Engine Codes
AutoCodes - Cadillac - C0306 Cadillac

C0306 Cadillac Code - Range Actuator Control Circuit

- Code Popularity: 1,362 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
Share on Facebook   Share on Twitter   Share on Linkedin

What are the Possible Causes of the DTC C0306 Cadillac?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Transfer Case Motor (Transfer Case Two/Four Wheel Drive Actuator)
  • Transfer Case Motor harness is open or shorted
  • Transfer Case Motor circuit poor electrical connection
  • Faulty Transfer Case Control Module
⚠ Does your Cadillac have Safety Recalls? → Check here

How to Fix the DTC C0306 Cadillac?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Search for C0306 Cadillac Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C0306 Cadillac code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code C0306 Cadillac Description

The Transfer Case Motor, also known as the transfer case range actuator, is a bi-directional, permanent magnet, DC motor. When energized, through the transfer case clockwise circuit or transfer case counterclockwise circuit, the ground is provided by the opposing motor control circuit which becomes grounded through the transfer case control module ground circuit. The transfer case range actuator, through a series of gears, rotates the transfer case control actuator shaft which moves the transfer case two/four-wheel drive actuator cam and transfer case high/low shift fork in order to shift the transfer case between the following modes or ranges: 2WD, 4WD/AWD Automatic, 4WD High/Locked, 4WD Low and Neutral.

OBDII Code C0306 Cadillac - Range Actuator Control Circuit - AutoCodes.com
C0306 Cadillac Code - Range Actuator Control Circuit

Need More Information on the Code?

Need more information on how to fix the C0306 Cadillac code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0306 Cadillac code diagnosed by a professional: Find a repair shop in your area

Code C0306 Cadillac 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 C0306 Cadillac code? Have you replaced any parts?
Any information is appreciated. Thanks