This code indicates a fault detected in the front axle disconnect actuator circuit, which engages and disengages the front axle in part-time four-wheel-drive systems. The control module monitors actuator current and position feedback, and sets the code when it detects an open, short, incorrect position, or performance problem. As a result, the vehicle may be unable to switch between two-wheel and four-wheel drive.
The actuator motor or internal clutch fork commonly fails due to moisture ingress, corrosion, or mechanical wear, preventing the axle from coupling or decoupling properly.
Road debris, vibration, or corrosion can damage the harness between the actuator and control module, causing high resistance or a dead short.
Corroded, bent, or backed-out terminals at the actuator or module connector disrupt current flow and position feedback signals.
Mechanical resistance from a damaged shift fork or collar can stall the actuator and trigger an overcurrent or position fault.
Although uncommon, an internal fault in the module that commands the actuator can set this code; this should only be considered after wiring and actuator are proven good.
You can usually drive in two-wheel drive, but four-wheel-drive function may be unavailable; avoid slippery or off-road conditions until repaired.
A weak actuator may click without fully shifting the collar, or the position sensor inside may be reporting an incorrect state to the control module.
No. The root cause is almost always the actuator or its wiring. Replacing the control module is rarely the correct fix and should only be done after the circuit and actuator are thoroughly tested.
Yes. The actuator sits low on the vehicle and is prone to water and salt intrusion, which commonly causes internal corrosion or connector issues.