C05F84WD/AWD Range Actuator Control Circuit High
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- A range actuator drive line carries more voltage than the controller expects, for example from a short to battery voltage or because a low-side switch no longer pulls the line down. The risk is a motor that runs or is braked when it should be idle, or a driver that cannot complete a commanded direction. The TI DRV8873-Q1 lists short to battery as its own protection case and disables the output that sees it. Magna drives the range shift motor with pulse width modulation and controls speed, direction and revolutions per shift, which presumes both motor leads can be switched cleanly. Stellantis bulletin 08-237-23 shows how many transfer case codes an unseated shift motor connector can trigger at once. No maker documents C05F8 itself; C05F7 covers the ground side.
- What you may notice
- 4WD service message, range shift disabled
- Shift motor may hum or run unexpectedly
- Transfer case remains in the last selected range
- Likely causes
- LikelyMotor lead shorted to a battery-fed wire
- PossibleLow-side switch in the control module failed open
- PossibleCorrosion bridging pins in the shift motor connector
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.