Electric Shift Motor Outputs

Electric Shift Motor Schematic:

OPERATION
The Transfer Case Control Module (TCCM) provides the output for the electric shift motor as the schematic shows.

- Motor control is achieved by energizing one of the two motor control relays located in the TCCM, by way of the transfer case selector switch.

The TCCM operates the motor in one direction by energizing one relay while the second relay is de-energized. The TCCM operates the motor in the reverse direction by energizing the second relay while the first relay is de-energized.

- Motor power to actuate the motor drive relays is input at TCCM connector pins D14 and D15. This power is supplied by the ignition through the 30-amp power circuit breaker.
- Motor ground is input at TCCM connector pins D12 and D13 to provide the return line for the motor drive relays.