Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer is having trouble controlling the part that helps switch between two-wheel drive and four-wheel drive. It's like when a toy car can't switch gears properly.
The C0600 code indicates a problem with the system that moves the vehicle between different drive modes, such as from two-wheel drive to four-wheel drive.
The C0600 code is triggered when the vehicle's control module detects an issue with the range actuator, which is responsible for shifting between different drive modes. This could be due to a malfunctioning actuator, wiring issues, or a faulty sensor.
• Inability to switch between 2WD and 4WD
• Warning light on the dashboard
• Unusual noises when attempting to change drive modes
• Faulty range actuator
• Wiring or electrical issues
• Malfunctioning position sensor
Actuator: A device that causes a machine or other device to operate.
Transfer Case: A part of the drivetrain of four-wheel-drive and all-wheel-drive vehicles.
• Check for any stored trouble codes
• Inspect the actuator and wiring for damage
• Test the position sensor for proper operation
• Replace or repair the range actuator
• Fix any wiring or electrical issues
• Replace the position sensor if faulty
• OBD-II scanner
• Multimeter
• Wrench set
$200 - $600
Moderate
• Chevrolet Silverado
• GMC Sierra
• Ford F-150
• Regular maintenance checks
• Inspect wiring for wear and tear
• Ensure proper lubrication of moving parts
Actuator Control Issue
• Avoid switching drive modes frequently if unnecessary
• Have the vehicle inspected if you notice any warning lights
• Schedule regular maintenance checks
Check with the vehicle manufacturer for warranty coverage on drivetrain components.
This code is commonly associated with vehicles that frequently switch between drive modes, often due to environmental conditions or usage patterns.
Moderate – While the vehicle may still be drivable, it is important to address the issue to ensure proper functionality of the 4WD/AWD system.
Driving with a malfunctioning 4WD/AWD system can lead to reduced vehicle control, especially in adverse conditions. It is advisable to address this issue promptly.
• Vehicle parked on a flat surface
• Ignition in the 'on' position
The range actuator is typically located on the transfer case of the vehicle.
Q: Can I drive my car with a C0600 code?
A: You can drive, but it's best to get it fixed soon to avoid further issues.
Q: How can I prevent this code from appearing?
A: Regular maintenance and avoiding unnecessary switching between drive modes can help prevent this issue.
Pro · Four-system diagnostics
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Chassis and ABS faults usually need a scanner that can read brake-system data directly.
View on Amazon
Universal · Torque wrench
Useful when reassembly torque matters for wheel, suspension, and under-hood fasteners.
Useful when wheel, hub, or suspension hardware needs correct reassembly torque.
View on Amazon
Universal · Drive-on ramps
Helpful for safer access underneath the vehicle during exhaust, EVAP, and underbody inspection work.
Helpful for safer access during underbody inspection work.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.