2006 SUZUKI SX4 check oil

Downloaded from www.Manualslib.com manuals search engine 3B-1 Differential:
Driveline / Axle
Differential
Precautions
Precaution for Rear Differential Oil LeakageS6RW0D3200001
Whenever vehicle is hoisted for any other service work than oil change, also be sure to check for oil leakage.
Precautions in Diagnosing TroubleS6RW0D3200002
• Do not disconnect the following parts before confirming diagnostic information (DTC, etc.) stored in 4WD control
module memory. These actions will erase memorized information in 4WD control module memory.
– Disconnection of coupler from 4WD control module
– Disconnection of battery cable from battery
– Disconnection of ground wire harness of 4WD control module
– Disconnect main fuse from fuse box
• Diagnostic information stored in 4WD control module memory can be cleared as well as checked by using SUZUKI
scan tool. Before using scan tool, read its Operator’s (Instruction) Manual carefully to have good understanding as
to what functions are available and how to use it.
• Be sure to read “Precautions for Electrical Circuit Service:” before inspection and observe what is written there.

Downloaded from www.Manualslib.com manuals search engine 3B-11 Differential:
Visual InspectionS6RW0D3204004
Check the following parts and systems visually.
DTC CheckS6RW0D3204005
1) Turn ignition switch to OFF position.
2) Connect SUZUKI scan tool to data link connector
(DLC) (1) located on underside of instrument panel.
Special tool
(A): SUZUKI scan tool
3) Turn ignition switch to ON position.
4) Read DTC according to instructions displayed on
SUZUKI scan tool and print it or write it down. Refer
to SUZUKI scan tool operator’s manual for further
details.
If communication between SUZUKI scan tool and
4WD control module is not possible, check if
SUZUKI scan tool is communicable by connecting it
to 4WD control module in another vehicle. If
communication is possible in this case, SUZUKI
scan tool is in good condition. Then check data link
connector and serial data line (circuit) in the vehicle
with which communication was not possible.
5) After completing the check, turn ignition switch OFF
and disconnect SUZUKI scan tool from data link
connector (DLC).
DTC ClearanceS6RW0D3204006
1) Turn ignition switch to OFF position.
2) Connect SUZUKI scan tool to data link connector
(DLC) (1) located on underside of instrument panel.
Special tool
(A): SUZUKI scan tool
3) Turn ignition switch to ON position.
4) Erase DTC according to instructions displayed on
SUZUKI scan tool. Refer to SUZUKI scan tool
operator’s manual for further details.
5) After completing clearance, turn ignition switch OFF
and disconnect SUZUKI scan tool from data link
connector (DLC).
6) Perform “DTC Check” and confirm that NO CODES
is displayed.
NOTE
DTC stored in 4WD control module memory
are also cleared in the following cases. Be
careful not to clear them before keeping their
record.
• When power to 4WD control module is cut
off (by disconnecting battery cable,
removing fuse or disconnecting 4WD
control module connectors).
• When the same malfunction (DTC) is not
detected again during 40 engine warm-up
cycles.

Inspection Item Referring
• Rear differential oil ---- level, leakage “Rear Differential Oil Change”
• Transfer gear oil ---- level, leakage “Transfer Oil Change in Section 3C”
• Manual transmission oil ---- level, leakage “Manual Transaxle Oil Change in Section 5B”
• Rear differential mounting(s) ---- wear and looseness
• Fuses ---- burning
• Battery ---- fluid level, corrosion of terminal “Battery Inspection in Section 1J”
• Connectors of electric wire harness ---- disconnection,
friction“Intermittent and Poor Connection Inspection in Section
00”
• Other parts that can be checked visually
1(A)I5RW0A320008-011(A)I5RW0A320008-01

Downloaded from www.Manualslib.com manuals search engine Differential: 3B-14
Rear Differential Symptom DiagnosisS6RW0D3204011
4WD Control Symptom DiagnosisS6RW0D3204012
Diagnose 4WD system after performing the following inspections.
• Perform 4WD control system check referring to “4WD Control System Check”. Condition Possible cause Correction / Reference Item
Gear noiseDeteriorated or water mixed lubricantRepair and replenish referring to “Rear
Differential Oil Change”.
Inadequate or insufficient lubricantRepair and replenish referring to “Rear
Differential Oil Change”.
Maladjusted backlash between drive
bevel pinion and gearAdjust as prescribed referring to “Rear
Differential Disassembly and Reassembly”.
Improper tooth contact in the mesh
between drive bevel pinion and gearAdjust or replace referring to “Rear Differential
Disassembly and Reassembly”.
Loose drive bevel gear securing boltsReplace or retighten referring to “Rear
Differential Disassembly and Reassembly”.
Damaged differential gear(s) or
differential pinion(s)Replace referring to “Rear Differential
Inspection”.
Bearing noise(Constant noise) Deteriorated or water
mixed lubricantRepair and replenish referring to “Rear
Differential Oil Change”.
(Constant noise) Inadequate or
insufficient lubricantRepair and replenish referring to “Rear
Differential Oil Change”.
(Noise while coasting) Damaged
bearing(s) of drive bevel pinionReplace referring to “Rear Differential
Inspection”.
(Noise while turning) Damaged
differential side bearing(s) or axle
bearing(s)Replace referring to “Rear Differential
Inspection”.
Oil leakageClogged breather plugClean.
Worn or damaged oil sealReplace.
Excessive oilAdjust oil level referring to “Rear Differential Oil
Change”.
Loose differential carrier boltsReplace or retighten.
Condition Possible cause Correction / Reference Item
4WD system does not
operate2WD/4WD switch faultyCheck switch referring to “2WD/4WD Switch
Inspection”.
Coupling air temperature sensor faultyCheck coupling air temperature sensor
referring to “Coupling Air Temperature Sensor
Inspection”.
Coupling assembly faultyCheck coupling assembly referring to
“Coupling Assembly Inspection”.
Wiring or grounding faultyRepair as necessary.
4WD control module faultyCheck 4WD control module referring to
“Inspection of 4WD Control Module and Its
Circuits”.
MAF sensor faultyCheck MAF sensor and its circuit.
Accelerator pedal position (APP) sensor
faultyCheck accelerator pedal position (APP) sensor
and its circuit.
CKP sensor faultyCheck CKP sensor and its circuit.
Front and/or rear wheel speed sensor
faultyCheck front and/or rear wheel speed sensor
and its circuit.
Steering angle sensor faultyCheck steering angle sensor and its circuit.
ABS / ESP® control module faultyCheck ABS / ESP
® control module and its
circuit.
ECM faultyCheck ECM and its circuit.
NoiseDamaged or worn bearing(s)Refer to “Rear Differential Inspection”.

Downloaded from www.Manualslib.com manuals search engine 3B-17 Differential:
DTC C1240: 4WD Control Module Power Supply Circuit MalfunctionS6RW0D3204015
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Clear DTC using scan tool.
2) Turn ignition switch to ON position for 10 seconds.
3) Check DTC.
Troubleshooting
[A]: 4WD control module connector “G26” (viewed from harness side) 3. “4WD” fuse
1. 4WD control module 4. Main fuse box
2. “IG COIL” fuse
DTC detecting condition Trouble area
4WD control module power supply voltage is out of specification. 4WD control module power supply circuit
5V
5V
G26-12
G26-11
G26-10BLK
WHT/RED
RED/BLK
1
2
3
4
YEL
1 2 3
4 5
6 7 8 9 10 11
12
13
14 15 16
17 18 19
20
21 22
23
24 25 26
[A]
I7RW01320005-01
Step Action Yes No
1Was “4WD control system check” performed?Go to Step 2. Go to “4WD Control
System Check”.
24WD control module power circuit check
1) Disconnect 4WD control module connector with ignition
switch OFF.
2) Check for proper connection to “G26” terminal of 4WD
control module connector.
3) If connection is OK, measure voltage between “G26-11”
terminal of 4WD control module connector and vehicle
body ground with ignition switch ON.
Is it 10 – 14 V?Poor “G26-11”
connection or
intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”. If wire and
connections are OK,
substitute a known-
good 4WD control
module and recheck.“4WD” fuse blown,
“WHT/RED” or “YEL”
wire is circuit open or
circuit short.

Downloaded from www.Manualslib.com manuals search engine Differential: 3B-30
Repair Instructions
Rear Differential Oil Level CheckS6RW0D3206001
1) Lift up vehicle and check oil leakage. Repair leaky
point, if any.
2) Remove oil level / filler plug (1) and check oil
contamination and oil level is lower end of oil level /
filler plug hole (2).
If oil is excessive dirty or insufficient, replace oil or
pour specified oil up to plug hole.
3) Apply sealant to thread of level / filler plug, and then
tighten it to specified torque.
“A”: Sealant 99000–31260 (SUZUKI Bond
No.1217G)
Tightening torque
Differential oil level / filler plug (a): 23 N·m (2.3
kgf-m, 17.0 lb-ft)
Rear Differential Oil ChangeS6RW0D3206002
1) Before changing or inspecting oil, be sure to stop
engine and lift vehicle horizontally.
2) With vehicle lifted up, check leakage.
If leakage exists, correct it.
NOTE
Whenever vehicle is hoisted for any other
service work than oil change, also be sure to
check for oil leakage.

3) Remove oil filler plug (2).
4) Remove drain plug (1), and drain old oil.
5) Apply sealant to thread of drain plug (1), and tighten
it to specified torque.
“A”: Sealant 99000–31260 (SUZUKI Bond
No.1217G)Tightening torque
Differential oil drain plug (a): 23 N·m (2.3 kgf-m,
17.0 lb-ft)
6) Pour new specified oil until oil level reaches bottom
of oil filler plug hole (3) as shown in figure.
NOTE
• Hypoid gear oil must be used for
differential.
• It is highly recommended to use API GL-5
80W-90 gear oil.

Differential oil specification
: API GL-5 (For SAE classification, refer to
viscosity chart [A] in figure.)
Rear differential oil capacity
Reference: 0.7 – 0.9 liters (1.5/1.2 – 1.9/1.6 US/
Imp. pt.)
7) Apply sealant to thread of level / filler plug, and then
tighten it to specified torque.
“A”: Sealant 99000–31260 (SUZUKI Bond
No.1217G)
Tightening torque
Differential oil level / filler plug (b): 23 N·m (2.3
kgf-m, 17.0 lb-ft)
I5RW0A320015-01
I5RW0A320016-02

Downloaded from www.Manualslib.com manuals search engine Differential: 3B-32
Coupling Air Temperature Sensor InspectionS6RW0D3206007
CAUTION!
Do not heat up coupling air temperature
sensor more than 100 °C (212 °F). Otherwise,
coupling air temperature sensor will be
damaged.

• Blow hot air to temperature sensing part (2) of
coupling air temperature sensor (3) using hot air drier
(4) and measure resistance between sensor terminals
while heating air gradually.
If measured resistance does not show such
characteristic as shown, replace air temperature
sensor.
Coupling Assembly InspectionS6RW0D3206008
• Check coupling assembly for oil leakage. If leakage
exists, replace it.
• Measure resistance between “a” terminal and “b”
terminal of coupling connector (1).
If measured resistance is out of specification, check
harness for open or short.
If OK, replace coupling assembly.
Coupling assembly resistance
: 2 – 3 Ω
[A]: Lower limit [D]: Resistance
[B]: Normal [E]: Temperature
[C]: Upper limit 1. Temperature gauge
020
32 68 17680 (6.00)
(0.34) (2.56)
1
4
23
[D]
[C]
[B]
[A]
[E]
I5RW0A320021-01
1
“a” “b”I5RW0A320064-01

Downloaded from www.Manualslib.com manuals search engine Differential: 3B-38
14) Using a hammer and brass bar (1), drive out front
bearing outer race (2).
15) Using a hammer and brass bar (1), drive out rear
bearing outer race (2).
Reassembly
Judging from faulty conditions noted before disassembly
and what is found through visual check of bearing and
gear tooth etc. after disassembly, prepare replacing
parts and proceed to reassembly according to
procedures as described in the following.
CAUTION!
• Bevel gear and pinion must be replaced as
a set when either replacement becomes
necessary.
• When replacing taper roller bearing,
replace as inner race & outer race
assembly.

1) Press-fit bevel pinion bearing outer races to
differential carrier (1) by using special tools and
hydraulic press as shown in the figure.
Special tool
(A): 09913–85210
(B): 09913–75510
2) After applying differential oil to differential gears (4),
pinions (5), pinion shaft (3), side washers (1), spring
washers (7) and pinion washers (2), install them in
differential case (6).
For correct installing direction of side washers and
spring washers, refer to figure.
NOTE
Used left and right differential side washers
are not interchangeable.

3) Check pinion gear (1) for smooth rotation.
1
2
I5RW0A320038-01
1
2
I5RW0A320039-01
(B)(A)
1
I5RW0A320040-02
7 6
4
5
3
21
I5RW0A320041-01
I3RH01322031-01

Downloaded from www.Manualslib.com manuals search engine 3B-41 Differential:
9) Set special tools and make drive bevel pinion
mounting dummy.
Special tool
(A): 09922–76120
(B): 09922–76250
10) Install dial gauge (1) to mounting dummy as shown
in figure.
Special tool set distance
“a”: 38.0 mm (1.496 in.)
“b”: 0 mm (0.000 in.)
11) Set special tools and make drive bevel pinion
dummy.
Special tool
(A): 09922–76140
(B): 09922–76420
(C): 09922–76330
(D): 09922–7634012) Apply gear oil to drive bevel pinion bearings, install
special tools with bearings to differential carrier as
shown in figure.
Special tool
(A): 09922–76140
(B): 09922–76420
(C): 09922–76330
(D): 09922–76340
(E): 09922–76150
(F): 09922–76530
NOTE
This installation requires no spacer or oil
seal.

13) Tighten bevel pinion nut (special tool) (1) so that
specified bearing preload is obtained.
NOTE
Before taking measurement, check for
rotation by hand more than 15 revolutions.

Pinion bearing preload (at 50 r/min)
: 1.3 – 2.6 N⋅m (13.0 – 26.0 kgf-cm, 11.3 – 22.6 lb-
in.)
I5RW0A320047-01
(C)
(D)
(A)
(A)(B)I5RW0A320048-01
(E) (D) (C)(B) (A) (F)I5RW0A320049-01
1
I5RW0A320050-01