What are the common causes of C0600?

A failed 4WD range actuator. Open or short in the range actuator supply or control circuit. A blown fuse or poor ground feeding the range actuator. A binding transfer case range fork or linkage.

Read the 4WD codes and confirm the range actuator fault. Check the fuse and ground for the range actuator circuit. Test the range actuator supply and control wires for opens and shorts. Command the range actuator and watch position in live data. Replace the range actuator if it does not reach commanded position. Clear the code and retest.

C0600

4WD/AWD Range Actuator Position Control Error

System: Chassis control (C code)
Lamp: Chassis Warning Light
Category: Chassis

What it means

C0600 means 4WD/AWD Range Actuator Position Control Error.

Where it lives

For C0600, start at the actuator the description names.

Check these first

A failed 4WD range actuator
Open or short in the range actuator supply or control circuit
A blown fuse or poor ground feeding the range actuator
A binding transfer case range fork or linkage

What to do next

Read the 4WD codes and confirm the range actuator fault
Check the fuse and ground for the range actuator circuit
Test the range actuator supply and control wires for opens and shorts
Command the range actuator and watch position in live data
Replace the range actuator if it does not reach commanded position
Clear the code and retest

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Code or symptom

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.