transfer SUZUKI JIMNY 2005 3.G Service User Guide

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OPERATION
2WD
→ 4WD
When the transfer shift control lever is shifted from the 2WD (2H) position to the 4WD (4H or 4L) position, a 4WD
“ON” signal is transmitted to the 4WD controller which then activates VSV2 to apply vacuum in the intake mani-
fold to the chamber “B” in the hub housing.
When vacuum is applied, the slide gear is separated from the magnet, moves toward the center of the vehicle
body and gets engaged with the outer gear. In this way, the front axle shaft and the front wheel hub rotate as one
unit.
If vacuum in the circuit fails to reach 260 mmHg within 15 seconds after operation of VSV2 due to such trouble
as a hole in the vacuum pipe, the slide gear does not operate and the 4WD indicator light flashes to warn that
the hub is unlocked.
1. ECM 8. Engine speed signal 15. Chamber B 22. Slide gear
2. 4WD controller 9. Intake manifold 16. Piston A 23. Wheel hub
3. 4WD indicator lamp 10. Check valve 17. Magnet 24. Spindle
4.4WD switch 11. Vacuum tank 18. Housing 25. Front axle shaft
5. A/C switch (if equipped) 12. VSV1 19. Spring 26. To opposite side
6. Vacuum switch 13. VSV2 20. Diaphragm 27. A/C controller
7. A/C cut signal (if equipped) 14. Outer gear 21. Sleeve A: Vacuum circuit

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4WD
→ 2WD
When the transfer shift control lever is shifted from the 4WD (4H or 4L) to the 2WD (2H) position, the 4WD con-
troller activates VSV1 and the intake manifold vacuum is applied to the chamber “A” in the hub housing. As the
slide gear is shifted to the wheel side by the vacuum force and disengaged from the outer gear, rotation of the
front wheel hub is not transmitted to the front axle shaft.
1. EPI & A/C controller 8. Engine speed signal 15. Chamber A 22. Slide gear
2. 4WD controller 9. Intake manifold 16. Piston A 23. Wheel hub
3. 4WD indicator lamp 10. Check valve 17. Magnet 24. Spindle
4.4WD switch 11. Vacuum tank 18. Housing 25. Front axle shaft
5. A/C switch (if equipped) 12. VSV1 19. Spring 26. To opposite side
6. Vacuum switch 13. VSV2 20. Diaphragm 27. A/C controller
7. A/C cut signal (if equipped) 14. Outer gear 21. Sleeve A: Vacuum circuit

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Diagnosis
Diagnosis Table
For description not found in the table below, refer to “Diagnosis Table” in Section 3.
4WD CONTROL SYSTEM
4WD CONTROL SYSTEM DIAGNOSTIC FLOW TABLE
Before performing the trouble diagnosis, check that the air locking hub assemblies are in good condition and
there is no air leakage from vacuum hoses and vacuum pipe. Refer to “4WD Control System Check” in this sec-
tion for air leakage.
[NOTES ON SYSTEM CIRCUIT INSPECTION]
Be sure to read “Precautions for Electrical Circuit Service” in Section 0A before circuit inspection and
observe what is written there.
For system circuit, refer to the figure of “System Circuit” in this section. Condition Possible Cause Correction
4WD Indicator light
flashingHub locking procedure error
Defective VSV2
Defective vacuum switch
Defective check valve or vacuum tank
Air leak from vacuum circuit
Clogged vacuum hose or pipe
Faulty 4WD controllerShift transfer shift control lever
2WD → 4WD once again
Replace
Replace
Replace
Check and repair
Replace
Check and replace
2WD/4WD switching
errorDefective air locking hub assembly
Abnormality in 4WD control system
Air leakage from vacuum circuit
Clogged vacuum hose or pipe
Defective check valve or vacuum tankReplace
Inspect referring to “4WD Control
System Diagnostic Flow Table”
Check and replace
Replace
Replace
Step Action Yes No
1 Check ground circuit.
1) Disconnect coupler from 4WD controller
with ignition switch OFF.
2) Check for proper connection to 4WD con-
troller at all terminals.
3) If OK, check continuity between A5 terminal
and body ground.
Is there continuity between A5 terminal and
body ground?Go to Step 2.“B” wire is open.
2 Check power circuit.
1) Disconnect coupler from 4WD controller.
2) Turn ignition switch ON.
3) Check voltage between A10 terminal and
ground.
Is it 10 – 14 V?Go to Step 3.“Y/R” circuit is open or
short.

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3 Check 4WD switch circuit.
1) Connect coupler to 4WD controller.
2) Turn ignition switch ON and check voltage
between A7 terminal and ground.
Transfer lever is in 2H : about 10 – 14 V
Transfer lever is in 4L or 4H : about 0 V
Is check result satisfactory?Go to Step 4. Check 4WD switch (refer
to “4WD Switch” in Sec-
tion 7D), “Bl/B” and “B”
circuits of 4WD switch.
If OK, substitute a known-
good 4WD controller and
recheck.
4 Check VSV1 circuit.
1) Turn ignition switch ON.
2) Check voltage between A1 terminal and
ground.
Is it 10 – 14 V when transfer lever is in 4H or 4L
range and about 0 V for 10 seconds after it is
shifted to 2H range?Go to Step 5. Check VSV1 (refer to
“4WD Control System
Check” in this section),
“Y/R” and “Gr/B” circuits
of VSV1.
If OK, substitute a known-
good 4WD controller and
recheck.
5 Check VSV2 circuit.
1) Turn ignition switch ON.
2) Check voltage between A2 terminal and
ground.
Is it 10 – 14 V when transfer lever is in 2H range
and about 0 V for 5 seconds after it is shifted to
4H or 4L range?Go to Step 6. Check VSV2 (refer to
“4WD Control System
Check” in this section),
“Y/R” and “Gr/R” circuits
of VSV2.
If OK, substitute a known-
good 4WD controller and
recheck.
6 Check vacuum switch circuit.
1) Turn ignition switch ON (stating engine).
2) Check voltage between A6 terminal and
ground.
Is it 10 – 14 V when transfer lever is in 2H range
and about 0 V for 5 seconds after it is shifted to
4H or 4L range?Go to Step 7. Check vacuum switch
(refer to “4WD Control
System Check” in this
section), “Gr” and “B” cir-
cuits of vacuum switch.
If OK, substitute a known-
good 4WD controller and
recheck.
7 Check 4WD indicator light circuit.
1) Turn ignition switch ON.
2) Check voltage between A3 terminal and
ground.
Is it 10 – 14 V when transfer lever is in 2H range
and about 0 V within 15 seconds after it is
shifted to 4H or 4L range?Substitute a known-good
4WD controller and
recheck.Check “Bl” circuit (includ-
ing indicator light and
combination meter refer to
“Combination Meter” in
Section 8).
If OK, substitute a known-
good 4WD controller and
recheck. Step Action Yes No

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4WD Controller and ITS Circuit Check
VOLTAGE CHECK
Check for input or output voltage of 4WD controller (1) (voltage
between each circuit and body ground) with 4WD controller con-
nector connected and ignition switch turned START (engine run).
* : With engine runningCAUTION:
Disable air bag system (if equipped with Air Bag), refer
to “Disabling Air Bag System” in Section 10B.
This check must be carried out in a well-ventilated
place.
Terminal Circuit Wire Color Normal Voltage Condition
A1 VSV1 Gr/Babout 0 V10 seconds after transfer shift con-
trol lever : 4WD → 2WD
10 – 14 V Transfer shift control lever: 4WD
A2 VSV2 Gr/R*about 0 V5 seconds after transfer shift control
lever : 2WD → 4WD
10 – 14 V Transfer shift control lever: 2WD
A34WD indicator
lampBl*about 0 V Transfer shift control lever: 4WD
10 – 14 V Transfer shift control lever: 2WD
A4 A/C controller G/W*10 – 12 V5 – 10 seconds after engine starts or
transfer shift control lever switches.
about 0 VA/C switch and blower fan switch
ON.
A5 Ground B about 0 V any time
A6 Vacuum switch Gr*about 0 V5 seconds after transfer shift control
lever : 2WD → 4WD
10 – 14 V Other than above
A7 4WD switch Bl/Babout 0 V Transfer shift control lever: 4WD
10 – 14 V Transfer shift control lever: 2WD
A8 A/C switch G/Babout 0 VA/C switch ON and blower fan switch
ON
10 – 14 V Other than above
A9 Ignition coil Br0 – 1 V IG: ON
Voltage varies according to engine speed.
A10 Ignition switch Y/R 10 – 14 V IG: ON

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4WD Control System Check
AIR LOCKING HUB
1) Start engine and shift transfer shift control lever to 2H posi-
tion.
2) Connect vacuum pump gauge (special tool) to the spindle
hose (2) which is disconnected from upper side pipe as
shown. Apply vacuum and check operating sound from air
locking hub (1).
If there is not operating sound, replace air locking hub
assembly.
Vacuum specification
More than 40 kPa (0.40 kg/cm
2, 5.70 Psi)
Special tool
(A) : 09917-47910
3) Connect hose, then start engine and shift transfer shift con-
trol lever to 4H or 4L position.
4) Connect vacuum pump gauge to the spindle hose (2) dis-
connected from lower side pipe.
Apply vacuum and check operating sound from air locking
hub (1).
If there is no operating sound, replace air locking hub
assembly.
Vacuum specification
More than 40 kPa (0.40 kg/cm
2, 5.70 Psi)
Special tool
(A) : 09917-47910
VSV1 AND VSV2
1) Disconnect coupler from VSV1 (1) (VSV2) (2) and check
resistance between two terminals of VSV1 (1) (VSV2) (2).
If resistance is out of specification, replace.
Resistance of VSV1 and VSV2
: 33 – 39
Ω

Downloaded from www.Manualslib.com manuals search engine 3E-22 REAR SUSPENSION
Tightening Torque Specifications
Required Service Materials
Fastening portionTightening torque
Nm kg-m lb-ft
Shock absorber upper and lower bolt 85 8.5 61.5
Bump stopper 50 5.0 36.5
Lateral rod bolt and nut
90 9.0 65.0
Trailing arm nut (Front and Rear)
Brake back plate nut 23 2.3 17.0
Brake pipe flare nut 16 1.6 11.5
Rear differential carrier bolt 23 2.3 17.0
Rear propeller shaft bolt (Differential case side) 50 5.0 36.5
Rear propeller shaft bolt (Shaft No.3 transfer case side) 33 3.3 24.0
Wheel nut 95 9.5 69.0
Wheel speed sensor bolt and harness clamp bolt 10 1.0 7.5
MaterialRecommended SUZUKI product
(Part Number)Use
Lithium greaseSUZUKI SUPER GREASE A
(99000-25010)Oil seal lip
SealantSUZUKI BOND NO. 1215
(99000-31110)Joint seam of differential carrier and
axle housing
Water tight sealantSEALING COMPOUND 366E
(99000-31090)To apply to mating surfaces of brake
back plate and rear axle.
Gear oilFor gear oil information, refer to “Mainte-
nance Service” in Section 7E of this manual.Differential gear
(Rear axle housing)

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INSTALLATION
Install propeller shaft(s) reversing removal procedure noting fol-
lowing points :
When installing propeller shaft, align the match marks.
Otherwise, vibration may occur during driving.
Use following specification to torque universal joint flange.
Tightening torque
Propeller shaft bolt (propeller shaft No.1, No.2 and No.3
rear differential side)
(a) : 50 N·m (5.0 kg-m, 36.5 lb-ft)
Propeller shaft bolt (propeller shaft No.3 transfer case
side)
(b) : 33 N·m (3.3 kg-m, 24 lb-ft)
Grease splines of propeller shaft No. 2 and No. 3.
“A” : Chassis Grease 99000-25030
Match marks (1) are provided on slip-on spline connections
of propeller shaft No. 2 and No. 3. Inserting splined end into
spIined bore without regard to match marks can be a possi-
ble cause of noise or vibration of propeller shaft. Be sure to
index marks. NOTE:
If transmission oil was drained for front propeller shaft
removal, pour specified gear oil into transmission case
to specified level.

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3) Insert bearing race into opposite side of shaft yoke until it is
flush with side face of shaft yoke, tapping it by a copper
hammer.
4) In the same way as Step 2) to Step 3), insert bearing races
into flange yoke.
5) Using round bar of 22 – 24 mm (0.87 in. – 0.94 in.) in diame-
ter and hammer, tap bearing races into shaft or flange yoke
until circlips can be installed in its groove on yoke bores.
6) Install 4 circlips in each groove on shaft and flange yoke
bores.
Tightening Torque Specification
Required Service Material
NOTE:
After reassembly, ensure that both shaft yoke and
flange yoke move smoothly.
Make sure that each circlip is fitted in groove securely.
Fastening portionTightening torque
Nm kg-m lb-ft
Propeller shaft bolt (propeller shaft No.1 No.2 and No.3 rear dif-
ferential side)50 5.0 36.5
Propeller shaft bolt (propeller shaft No.3 transfer case side) 33 3.3 24
MaterialRecommended SUZUKI product
(Part Number)Use
Lithium greaseSUPER GREASE C
(99000-25030)To apply to spider bearing race and propel-
ler shaft No.2 and No.3 splines.

Downloaded from www.Manualslib.com manuals search engine 5-28 BRAKES
CHECK FOR FRONT BRAKE AFTER INSTALLATION
Mount tires and make certain that they rotate smoothly, with a
force of less than 3.0 kg (6.6 Ib).
If tire rotation is heavy, check the following:
Piston, piston seal and cylinder slide bush of caliper for
installation.
Wheel bearings for breakage.
Disc for flatness (Improper flatness brings disc into contact
with lining during rotation and makes rotation heavy).
To check this, measure disc deflection.NOTE:
For above check the following must be observed.
Jack up front wheels, both right and left, off the
ground.
Shift transfer shift lever to 2H (rear wheel) position (if
equipped) and start engine for a few seconds then
stop.
Side figure shows outer periphery of tire.
Be careful not to depress brake pedal when checking
tire for rotation.
1. String
2. Spring measure