C06004WD/AWD Range Actuator Position Control Error
- Generic OBD-II code · Chassis
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- The position loop that drives the range actuator to a target does not reach or hold it: commanded and measured position stay apart for too long, although sensor and drive circuit pass their own checks. Magna describes such a loop for a transfer case range shift, with speed profiles per shift phase and PID control over the last tenth of travel down to a stop at the target. Lear's actuator patent notes that the feedback should stop the worm gear at about 270 degrees but can overrun towards the 330 degree stop. Typical causes are binding, a weak motor, low voltage or poor learned limits. GM used C0600 earlier for a suspension accelerometer (PI0954, 2010 LaCrosse); that is a different, older assignment. No maker documents C0600 in this meaning.
- What you may notice
- Range shift incomplete, indicator flashes
- 4WD service message and range shifts blocked
- Noise from the transfer case while the motor hunts for position
- Likely causes
- LikelyStiff range fork, cam or shift rail slows the actuator
- PossibleWeak shift motor or low supply voltage
- PossibleLearned end positions no longer match the hardware
- RarePlay between sensor target and shift mechanism
- Repair
- Hard · Usually a job for a workshop.Typical cost: €100 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.