Transfer Case Encoder

The encoder is mounted to the transfer case encoder motor assembly and is replaced only as an assembly. The encoder converts the shift detent lever shaft position, representing a mode/range into electrical signal inputs to the transfer case shift control module. The module detects what position the transfer case is in by monitoring the 4 encoder channels, P, B, A, and C. These inputs translate into 4HI, 4HI Lock, 4LO Lock, and NEUTRAL, or whether the motor is still in transition between gears.

The transfer case encoder channel circuits may be monitored using a scan tool.