Electronic Shift
The electronic shift on the fly system is an electronically-shifted four wheel drive system that allows the operator to choose between three different modes. The operator can switch between 2WD and 4WD HIGH modes at any speed. To engage or disengage 4WD LOW range, the vehicle speed must be less than 5 km/h (3 mph), the brake depressed, and the transmission must be in NEUTRAL (automatic transmission) or the clutch pedal must be depressed (manual transmission).
The shift motor sense plate, an integral part of the transfer case shift motor, informs the Four-Wheel Drive (4WD) control module of the transfer case position.
The Digital Transmission Range (DTR) sensor is located on the left side of the automatic transmission; this sensor informs the 4WD control module when the automatic transmission is in the NEUTRAL position.
The clutch pedal position (CPP) switch is present on manual transmission vehicles; this switch informs the 4WD control module when the clutch pedal is depressed. The transfer case shift motor is mounted externally at the rear of the transfer case. It drives a rotary cam which moves the mode fork and range fork within the transfer case between the 4WD HIGH, 4WD LOW and 2WD positions. The transfer case shift motor is controlled by the 4WD control module to shift the transfer case between 4WD HIGH, 4WD LOW and 2WD modes.