What is the diagnostic code for transfer case?
Diagnostic Trouble Code C0306 is set once the Transfer Case Control Module detects an open, short-to-ground, or low voltage in the Motor Control A or B circuit, or an open or short-to-ground fault inside of the transfer case motor.
Where is the encoder motor on a GM transfer case?
Access to datastream information for GM’s NVG 246 system makes most problems simple to locate and diagnose, as our case studies demonstrate. These systems also allow bidirectional control for many outputs. The encoder motor (arrow) is mounted on the front of the transfer case and is used to lock it into 4WD.
When to use transfer case shift control module?
If no buttons are pressed, and the transfer case shift control module detects a voltage level outside the possible range (approx. 0.5-1.0 volts) for longer than 5 minutes, the transfer case shift control module will set this DTC if a button is held down or sticks for a period longer than 5 min- utes.
What does transfer case encoder do in 4WD?
The transfer case encoder motor moves the transfer case selector automatically. In Auto 4WD, it continually moves the input shaft of the transfer case to vary the amount of torque that goes to the front driveshaft. In 4Hi, 4Lo, or Neutral, it just moves to the proper position and locks in place.
Can a transfer case be changed in a 4WD truck?
The entire motor can be replaced, or just the less expensive encoder inside can be changed. The transfer case encoder motor moves the transfer case selector automatically. In Auto 4WD, it continually moves the input shaft of the transfer case to vary the amount of torque that goes to the front driveshaft.
Diagnostic Trouble Code C0306 is set once the Transfer Case Control Module detects an open, short-to-ground, or low voltage in the Motor Control A or B circuit, or an open or short-to-ground fault inside of the transfer case motor.
Access to datastream information for GM’s NVG 246 system makes most problems simple to locate and diagnose, as our case studies demonstrate. These systems also allow bidirectional control for many outputs. The encoder motor (arrow) is mounted on the front of the transfer case and is used to lock it into 4WD.