Page 2345 of 2395
3 CHECK PROCEDURES FROM THE BEGINNING
Check again.
OK or NG
OK©INSPECTION END
NG©Recheck each connector's pin terminals for damage or loose connection.
TROUBLE DIAGNOSES FOR SYMPTOMS
Symptom 9. 4WD System Does Not Operate (Cont'd)
TF-110
Page 2346 of 2395

NBTF0038
SMT858D
4WD Shift SwitchNBTF0038S01Check continuity between each terminal.
Terminals Switch position Continuity
1-22WD Yes
Except 2WD No
1-3,1-4AUTO Yes
Except AUTO No
1-4,1-54H Yes
Except 4H No
1-4,1-64LO Yes
Except 4LO No
SMT079D
2-4WD Shift Solenoid Valve and Transfer Fluid
Temperature Sensor
NBTF0038S02Measure resistance between terminals of transfer terminal cord
assembly sub-harness connector located on rear-right of transfer
unit.
Component parts Terminals Resistance
2-4WD shift solenoid valve 4 - 5Approx. 20ÉC (68ÉF):
Approx. 22.8 - 25.2W
Transfer fluid temperature
sensor2-3Approx. 20ÉC (68ÉF): Approx. 2.5 kW
Approx. 80ÉC (176ÉF): Approx. 0.3
kW
SMT080D
4WD Solenoid Valve, Clutch Pressure Switch
and Line Pressure Switch
NBTF0038S03Measure resistance between terminals of transfer terminal cord
assembly sub-harness connector located on rear-right of transfer
unit.
GI
MA
EM
LC
EC
FE
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
COMPONENT INSPECTION
4WD Shift Switch
TF-111
Page 2347 of 2395

Component
partsTerminals Remarks
4WD solenoid
valve6
Ground
terminalApprox. 20ÉC (68ÉF): Approx. 3.0 - 3.4W
Clutch pres-
sure switch7In room temperature
I2-4WD shift solenoid valve ªOFFº: No
continuity
I2-4WD shift solenoid valve and transfer
motor ªONº: Continuity exists
Line pressure
switch1In room temperature
ITurn ignition switch to ªOFFº position
and leave vehicle for more than 5 min-
utes. (OFF): No continuity
ITransfer motor ªONº: Continuity exists
SMT081D
Front Revolution SensorNBTF0038S04Measure resistance between terminals of front revolution sensor
sub-harness connector located on rear-right of transfer unit.
Terminals Resistance
16 - 17 500 - 650W
18 - 17 No continuity
18 - 16 No continuity
SMT806D
Transfer Dropping ResistorNBTF0038S07Check resistance between terminals.
Resistance: 11.2 - 12.8W
SMT083D
ATP Switch, Neutral-4LO Switch and Wait
Detection Switch
NBTF0038S06Measure resistance between terminals of transfer switch assembly
sub-harness connector located on rear-right of transfer unit.
COMPONENT INSPECTION
4WD Solenoid Valve, Clutch Pressure Switch and Line Pressure Switch (Cont'd)
TF-112
Page 2348 of 2395

Switch Terminals4WD shift switch position
4H (N) 4LO
ATP switch 8 - 9No conti-
nuityContinuityNo conti-
nuity
Neutral-4LO
switch12 - 13 No continuity Continuity
Wait detection
switch10-11No continuity Continuity
(Note)
+---------------------------
NOTE:
When shifting from ª4LOº to ª4Hº, continuity exists while ªWaitº function is operat-
ing. (No continuity exists when ªWaitº function is canceled.)
SMT082D
Transfer MotorNBTF0038S05Apply battery voltage directly to transfer motor assembly sub-har-
ness connector located on rear-right of transfer unit. (Positive: Ter-
minal 14, Negative: Terminal 15)
Transfer motor should operate.
SMT085D
Transfer Motor RelayNBTF0038S081. Apply battery voltage directly to terminals 3 and 4.
2. Check continuity between terminals 1 and 2.
Condition Continuity (1 - 2)
Battery voltage is applied Yes
No voltage is applied No
SMT086DB
Transfer Sub-harnessNBTF0038S09FRONT REVOLUTION SENSOR SUB-HARNESS
CONNECTOR
NBTF0038S0901Check continuity between terminals shown in the figure.
GI
MA
EM
LC
EC
FE
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
COMPONENT INSPECTION
ATP Switch, Neutral-4LO Switch and Wait Detection Switch (Cont'd)
TF-113
Page 2349 of 2395
SMT087D
TRANSFER SWITCH ASSEMBLY SUB-HARNESS
CONNECTOR
NBTF0038S0902Check continuity between terminals shown in the figure.
SMT088D
TRANSFER TERMINAL CORD ASSEMBLY
SUB-HARNESS CONNECTOR
NBTF0038S0903Check continuity between terminals shown in the figure.
Terminals on solenoid valve
Terminals Components
6 4WD solenoid valve
4, 5 2-4WD shift solenoid valve
2, 3 Transfer fluid temperature sensor
7 Clutch pressure switch
1 Line pressure switch
SMT807D
Transfer Shift Relay (High & low)NBTF0038S10Check continuity between terminals 3 and 4.
Condition Continuity
12V direct current supply
between terminals 1 and 2No
No current supply Yes
COMPONENT INSPECTION
Transfer Sub-harness (Cont'd)
TF-114
Page 2350 of 2395
SMT812D
Actuator & Actuator Position SwitchNBTF0038S11ACTUATORNBTF0038S1101Operation & resistance check
IApply battery voltage directly to actuator assembly.
Operating check Battery positive terminal Battery negative terminal
143
234
Check Approx. 0.2W(When the motor is not operated.)
SMT838D
ACTUATOR POSITION SWITCHNBTF0038S1102Continuity check
Continuity checkBattery positive
terminalBattery negative
terminalContinuity
14 3 1-5
23 4 2-5
GI
MA
EM
LC
EC
FE
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
COMPONENT INSPECTION
Actuator & Actuator Position Switch
TF-115
Page 2351 of 2395
SMT844DB
Replacing Oil SealNBTF0068FRONT CASE OIL SEALNBTF0068S011. Drain transfer fluid.
2. Remove exhaust front tube and heat insulator. Refer to
ªRemovalº, TF-119.
3. Remove front propeller shaft. Refer to PD-6, ªRemoval and
Installationº.
4. Remove companion flange lock nut.
IDo not reuse lock nut.
SMT112D
5. Put a matchmark on top of drive pinion thread. The mark
should be in line with the mark on the companion flange.
IAlways mark top of drive pinion screw using paint.
SMT802C
6. Remove companion flange.
SMT803C
7. Remove front case oil seal.
8. Install front case oil seal.
IBefore installing, apply multi-purpose grease to seal lip.
9. Install companion flange.
SMT845DB
10. Tighten nut to the specified torque.
Refer to TF-121.
11. Install front propeller shaft.
ON-VEHICLE SERVICE
Replacing Oil Seal
TF-116
Page 2352 of 2395

SMT808D
SHIFT SHAFT OIL SEALNBTF0068S021. Remove front propeller shaft. Refer to PD-6, ªRemoval and
Installationº.
2. Remove companion flange. Refer to ªFRONT CASE OIL
SEALº, TF-116.
3. Remove actuator lever from transfer outer shift lever. Then
remove outer shift lever.
SMT491A
4. Remove shift shaft oil seal.
IBe careful not to damage cross shaft.
SMT805C
5. Install shift shaft oil seal.
IBefore installing, apply multi-purpose grease to seal lip.
6. Install transfer control linkage.
7. Install companion flange. Refer to ªFRONT CASE OIL SEALº,
TF-116.
8. Install front propeller shaft.
SMT892C
REAR OIL SEALNBTF0068S031. Remove rear propeller shaft. Refer to PD-6, ªRemoval and
Installationº.
2. Remove rear oil seal.
3. Install rear oil seal.
IBefore installing, apply multi-purpose grease to seal lip.
4. Install rear propeller shaft.
SMT874C
Transfer Motor
REMOVALNBTF00691. Disconnect transfer motor harness connector.
2. Remove breather pipe from transfer motor.
3. Remove bolts to detach transfer motor.
IAfter removing transfer motor, be sure to replace O-ring
with new one.
INSTALLATIONNBTF00701. Apply petroleum jelly or ATF to O-ring.
GI
MA
EM
LC
EC
FE
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
ON-VEHICLE SERVICE
Replacing Oil Seal (Cont'd)
TF-117