2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE

Specifications with CONSULT-II

WARNING: This page is about a different car, the 2005 Nissan Frontier. However, it is still accessible from the selected car via links, so may be relevant.
TRANSFER CONTROL UNIT INSPECTION TABLE

Monitored item [Unit] Content Condition Display value
VHCL/S SEN.FR [km/h] or [mph] Wheel speed (Front wheel) Vehicle stopped 0 km/h (0 mph)
Vehicle running
CAUTION: Check air pressure of tire under standard condition.
 Approximately equal to the indication on speedometer (Inside of +/-10%)
VHCL/S SEN.RR [km/h] or [mph] Wheel speed (Rear wheel) Vehicle stopped 0 km/h (0 mph)
Vehicle running
CAUTION: Check air pressure of tire under standard condition.
 Approximately equal to the indication on speedometer (Inside of +/-10%)
ENGINE SPEED [rpm] Engine speed Engine stopped (Engine speed: Less than 400 rpm) 0 rpm
Engine running (Engine speed: 400 rpm or more) Approximately equal to the indication on tachometer
BATTERY VOLT [V] Power supply voltage for transfer control unit Ignition switch: ON Battery voltage
2WD SWITCH [ON/OFF] Input condition from 4WD shift switch 4WD shift switch: 2WD ON
4WD shift switch: 4H and 4LO OFF
4H SWITCH [ON/OFF] Input condition from 4WD shift switch 4WD shift switch: 4H ON
4WD shift switch: 2WD and 4LO OFF
4L SWITCH [ON/OFF] Input condition from 4WD shift switch 4WD shift switch: 4LO ON
4WD shift switch: 2WD and 4H OFF
4L POSI SW [ON/OFF] Condition of 4LO switch
  • Vehicle stopped
  • Engine running
  • For A/T models, A/T selector lever "N" position with brake pedal depressed.
  • For M/T models, M/T shift lever neutral position with clutch and brake pedal depressed.
 4WD shift switch: 4LO ON
Except the above OFF
ATP SWITCH [ON/OFF] Condition of ATP switch
  • Vehicle stopped
  • Engine running
  • A/T selector lever "N" position with brake pedal depressed.
 4WD shift switch: 4H to 4LO or 4LO to 4H (While actuator motor is operating.) ON
Except the above OFF
WAIT DETCT SW [ON/OFF] Condition of wait detection switch
  • Vehicle stopped
  • Engine running
  • For A/T models, A/T selector lever "N" position with brake pedal depressed.
  • For M/T models, M/T shift lever neutral position with clutch and brake pedal depressed.
 4WD shift switch: 4H and 4LO ON
4WD shift switch: 2WD OFF
4WD MODE [2H/4H/4L] Control status of 4WD (Output condition of 4WD shift indicator lamp and 4LO indicator lamp) 4WD shift switch (Engine running) 2WD 2H
4H 4H
4LO 4L
VHCL/S COMP [km/h] or [mph] Vehicle speed Vehicle stopped 0 km/h (0 mph)
Vehicle running
CAUTION: Check air pressure of tires under standard condition.
 Approximately equal to the indication on speedometer (Inside of +/-10%)
SHIFT ACT 1 [ON/OFF] Output condition to actuator motor (clockwise)
  • Vehicle stopped
  • Engine running
  • For A/T models, A/T selector lever "N" position with brake pedal depressed.
  • For M/T models, M/T shift lever neutral position with clutch and brake pedal depressed.
 4WD shift switch: 2WD to 4H or 4H to 4LO or 2WD to 4LO ON
Except the above OFF
SHIFT AC MON1 [ON/OFF] Check signal for transfer control unit signal output
  • Vehicle stopped
  • Engine running
  • For A/T models, A/T selector lever "N" position with brake pedal depressed.
  • For M/T models, M/T shift lever neutral position with clutch and brake pedal depressed.
 4WD shift switch: 2WD to 4H or 4H to 4LO or 2WD to 4LO ON
Except the above OFF
SHIFT ACT 2 [ON/OFF] Output condition to actuator motor (counterclockwise)
  • Vehicle stopped
  • Engine running
  • For A/T models, A/T selector lever "N" position with brake pedal depressed.
  • For M/T models, M/T shift lever neutral position with clutch and brake pedal depressed.
 4WD shift switch: 4LO to 4H or 4H to 2WD or 4LO to 2WD ON
Except the above OFF
SHIFT AC MON2 [ON/OFF] Check signal for transfer control unit signal output
  • Vehicle stopped
  • Engine running
  • For A/T models, A/T selector lever "N" position with brake pedal depressed.
  • For M/T models, M/T shift lever neutral position with clutch and brake pedal depressed.
 4WD shift switch: 4LO to 4H or 4H to 2WD or 4LO to 2WD ON
Except the above OFF
SHIFT ACT/R MON [ON/OFF] Operating condition of actuator motor relay (integrated in transfer control unit)
  • Vehicle stopped
  • Engine running
  • For A/T models, A/T selector lever "N" position with brake pedal depressed.
  • For M/T models, M/T shift lever neutral position with clutch and brake pedal depressed.
 When 4WD shift switch is operated ON
When 4WD shift switch is not operated OFF
SHIFT POS SW1 [ON/OFF] Condition of actuator position switch 1
  • Vehicle stopped
  • Engine running
  • For A/T models, A/T selector lever "N" position with brake pedal depressed.
  • For M/T models, M/T shift lever neutral position with clutch and brake pedal depressed.
 4WD shift switch: 2WD and 4LO ON
4WD shift switch: 4H OFF
SHIFT POS SW2 [ON/OFF] Condition of actuator position switch 2 4WD shift switch: 4LO ON
4WD shift switch: 2WD and 4H OFF
SHIFT POS SW3 [ON/OFF] Condition of actuator position switch 3 4WD shift switch: 2WD and 4H ON
4WD shift switch: 4LO OFF
SHIFT POS SW4 [ON/OFF] Condition of actuator position switch 4 4WD shift switch: 4H and 4LO ON
4WD shift switch: 2WD OFF
4WD FAIL LAMP [ON/OFF] 4WD warning lamp condition 4WD warning lamp: ON ON
4WD warning lamp: OFF OFF
2WD IND [ON/OFF] Rear indicator of 4WD shift indicator lamp condition Rear indicator of 4WD shift indicator lamp: ON ON
Rear indicator of 4WD shift indicator lamp: OFF OFF
4H IND [ON/OFF] Front and center indicator of 4WD shift indicator lamp condition Front and center indicator of 4WD shift indicator lamp: ON ON
Front and center indicator of 4WD shift indicator lamp: OFF OFF
4L IND [ON/OFF] 4LO indicator lamp condition 4LO indicator lamp: ON ON
4LO indicator lamp: OFF OFF
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  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.