Contents Wiring diagrams Section: Transfer Case All sections

COMPONENTS FUNCTION Nissan Frontier D40

COMPONENTS FUNCTION

Component partsFunction
Transfer control unitControls transfer control device and switches 4H<==>4LO under 4WD condition and 2WD<==>4WD.
Transfer control deviceActuator motor and actuator position switch are integrated so as to switch driving modes.
Actuator motorControls shift rod by signals from transfer control unit.
Actuator position switchDetects actuator motor position.
Wait detection switchDetects if transfer is under 4WD condition.
4LO switchDetects if transfer is under 4LO condition.
ATP switch (A/T models)Detects if transfer is under neutral condition.
4WD shift switchAble to select from 2WD, 4H or 4LO.
4WD warning lampIlluminates if malfunction is detected in electrical system of 4WD system. There is 1 blink in 2 seconds if rotation difference of front wheels and rear wheels is large.
ATP warning lamp (A/T models)Indicates that A/T parking mechanism does not operate when A/T selector lever is in "P" position and transfer is under neutral condition.
4WD shift indicator lampDisplays driving condition selected by 4WD shift switch.
4LO indicator lampDisplays 4LO condition.
PNP switch (M/T models)Detects that manual transmission is under neutral condition.
ABS actuator and electric unit (control unit)Transmits the following signals via CAN communication to Transfer control unit. Vehicle speed signal Stop lamp switch signal (brake signal)
TCM (A/T models)Transmits the following signal via CAN communication to Transfer control unit. Output shaft revolution signal A/T position indicator signal (PNP switch signal)
ECMTransmits engine speed signal via CAN communication to Transfer control unit.

COMPONENTS FUNCTION CHART