K 2500 Truck 4WD V8-454 7.4L VIN J SFI (1997)
Transfer Case Actuator: Testing and Inspection
Encoder Signal Check
The Transfer Case Control Module (TCCM) checks the encoder signal to verify that the transfer case is in either 2HI, 4HI, or 4LO.
GMC Workshop Service and Repair Manuals
Encoder Signal Check|Page 8778 >
< Motor/Encoder Channel Signal Table|Page 8775
Page 1
