Nissan Murano Z50 (2003 year). Manual - part 276

TF-16

TRANSFER ASSEMBLY

Revision; 2004 April

2003 Murano

●

If the tooth contact is near the face (face contact), or near the
heal (heel contact), thin the pinion sleeve shims to move the
drive pinion gear closer to the drive gear.

●

If the tooth contact is near the flank (flank contact), or near the
toe (toe contact), thicken the pinion sleeve shims to move the
drive pinion gear farther from the drive gear.

PRELOAD TORQUE
Pinion Bearing Preload Torque

1.

Remove the pinion sleeve assembly. Refer to 

TF-18, "Pinion Sleeve Assembly"

 .

2.

Rotate the companion flange back and forth 2 to 3 times. Check for unusual noise, rotation malfunction,
and other malfunctions.

3.

Rotate the companion flange at least 20 times to check for smooth operation of the bearing.

SDIA0518E

SDIA0519E

TRANSFER ASSEMBLY

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4.

Using a preload gauge, measure the preload torque of the pin-
ion bearing.

CAUTION:

Every rotational part shall rotate smoothly with the speci-
fied gear oil.

●

If measured value is out of the specification, disassemble the
pinion sleeve assembly to check and adjust each part.

Total Preload Torque

1.

Measure pinion bearing preload torque (P

1

 ).

2.

Install the pinion sleeve shims and pinion sleeve assembly.

3.

Rotate the companion flange at least 20 times to check for smooth operation of the bearing.

4.

Using a preload gauge, measure the Total preload torque.

●

If measured value is out of the specification, disassemble it to
check and adjust each part. If measuring the Total preload
torque after the disassembly, measure it with the transfer case oil seals and gear ring oil seals
removed, then install the oil seals.

COMPANION FLANGE RUNOUT 

1.

Fit a dial gauge onto the companion flange face (inner side of
the propeller shaft mounting bolt holes).

2.

Rotate the companion flange to check for runout.

3.

Fit a test indicator to the inner side of the companion flange
(socket diameter).

4.

Rotate the companion flange to check for runout.

5.

If the runout value is outside the repair limit, follow the procedure
below to adjust.

a.

While changing the phase between companion flange and drive pinion gear by 90

°

 at a time, check runout

and determine which phase angle minimizes the runout.

b.

If the runout value is still outside of the limit after the phase has been changed, replace the companion
flange.

c.

If the runout is out of the specification after replacement of companion flange, adjust the assembly status
of the pinion bearings and drive pinion gear, or replace the pinion bearings.

Tool number

: ST3127S000 (J25765-A)

Preload torque

: 0.10 - 0.39 N·m (0.01 - 0.04 kg-m, 1 - 3 in-lb)

SDIA1526E

Pinion bearing preload torque (P1)

: 0.10 - 0.39 N·m (0.01 - 0.04 kg-m, 1 - 3 in-lb)

Tool number

: ST3127S000 (J25765-A)

Total preload torque

When all oil seals are installed

: P

1

  + 0.16 - 0.22 N·m (0.016 - 0.023 kg-m, 1.4 - 1.9 in-lb)

Without transfer case oil seal and gear ring oil seal

: P

1

  + 0.06 - 0.12 N·m (0.006 - 0.013 kg-m, 0.6 - 1.1 in-lb)

SDIA1556E

Runout limit

: 0.1 mm (0.004 in)

Runout limit

: 0.1 mm (0.004 in)

SDIA0524E

TF-18

TRANSFER ASSEMBLY

Revision; 2004 April

2003 Murano

Disassembly and Assembly

ADS000GS

DISASSEMBLY
Pinion Sleeve Assembly

1.

Remove pinion sleeve mounting bolts.

2.

Temporarily tighten 2 bolts. Using a plastic hammer, tap com-
panion flange to remove pinion sleeve assembly.

3.

Remove the pinion sleeve shim.

4.

Remove the pinion nut.

5.

Using a drift, remove drive pinion from pinion sleeve with a
press.

6.

Remove drive pinion assembly.

7.

Remove the O-ring from pinion sleeve.

8.

Using a flat-bladed screwdriver, remove the oil seal.

CAUTION:

Be careful not to damage the pinion sleeve.

9.

Remove the pinion rear bearing inner race.

TFB0302D

TFB0284D

Tool number

: ST33220000 (J25804-01)

SDIA1557E

TFB0286D

TRANSFER ASSEMBLY

TF-19

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10. Using a puller, remove the pinion rear bearing outer race.

11. Using a puller, remove the pinion front bearing outer race.

12. Remove the collapsible spacer from the drive pinion gear.

13. Using a replacer, press the pinion front bearing inner race out of

the drive pinion gear.

Adapter Case

1.

Remove the adapter case mounting bolts.

Tool number

: KV381054S0 (J34286)

SDIA1527E

Tool number

: KV381054S0 (J34286)

SDIA1558E

Tool number

: ST30031000 (J22912-01)

SDIA1559E

SDIA1528E

TF-20

TRANSFER ASSEMBLY

Revision; 2004 April

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2.

Using a plastic hammer, tap the adapter case to remove.

3.

Remove the O-ring.

4.

Using a flat-bladed screwdriver, remove the oil seal.

CAUTION:

Be careful not to damage the adapter case.

5.

Using a brass rod, tap the adjusting shim from the cutout on the
adapter case to remove the adjusting shim and gear ring bear-
ing outer race.

6.

Remove the oil gutter.

7.

Remove the drain plug.

Drive Gear Assembly

1.

Remove the adapter case.

2.

Remove the drive gear assembly from the transfer case.

SDIA1529E

SDIA1530E

SDIA1531E

SDIA1532E

TRANSFER ASSEMBLY

TF-21

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3.

Using a drift and replacer, remove the gear ring bearing inner
race on the adapter case.

4.

Using a drift and puller, remove the gear ring bearing inner race
on the gear ring.

5.

Remove the drive gear mounting bolts.

6.

Using a plastic hammer, tap the drive gear to remove the drive
gear from the gear ring.

7.

Using a puller, remove the oil seal from the gear ring.

Transfer Case

1.

Remove the pinion sleeve assembly.

2.

Remove the adapter case.

3.

Remove the drive gear assembly from the transfer case.

Tool number

: ST33200000 (J26082)

SDIA1560E

Tool number

: ST33061000 (J8107-2)

SDIA1561E

TFB0295D

Tool number

: KV381054S0 (J34286)

SDIA1562E

TF-22

TRANSFER ASSEMBLY

Revision; 2004 April

2003 Murano

4.

Using a flat-bladed screwdriver, remove the oil seal.

CAUTION:

Be careful not to damage the transfer case.

5.

Remove the oil defense.

6.

Using a brass rod, tap the adjusting shim evenly from the 2 cut-
outs on the transfer case to remove the adjusting shim and gear
ring bearing outer race.

7.

Remove the filler plug, and breather tube.

INSPECTION 
Gears

●

Check the gear faces and shaft for wear, cracks, damage, and seizure.

CAUTION:

If a malfunction is detected on the drive gear or drive pinion gear, replace the drive gear and drive pin-
ion gear as a set.

Bearings

●

Check for seizure, peeling, wear, corrosion, sticking/abnormal noise/roughness in hand turning, and other
damage.

CAUTION:

When replacing the bearing, always replace the inner race and outer race as a pair.

Washers and Shims

●

Check for seizure, damage, and unusual wear.

Oil Seals

●

Discard old oil seals, replace with new ones.

●

If wear, deterioration of adherence (sealing force of lips), or damage is detected on the lips, replace them.

TFB0297D

SDIA1533E

SDIA0536E

TRANSFER ASSEMBLY

TF-23

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SELECTING ADJUSTING SHIMS

Measuring point

At Gear Ring Bearing on Transfer Case

1.

Measure the points F, H, I, R, and U shown in the measurement points.

2.

Convert the values F, H, I, R, and U according to the standards below.

3.

Check dimension Z on the drive gear side face.

NOTE:
Dimension Z indicates the difference between the optimum engagement and the standard dimensions in
increments of 0.01 mm (0.0004 in) written on the drive gear side face.

4.

Use the formula below to calculate adjusting shim thickness T

1

  at the gear ring bearing on the transfer

case.

5.

Select the adjusting shim.

●

For information on selecting an adjusting shim, refer to 

TF-72, "Gear Ring Bearing Adjusting Shim"

 .

CAUTION:

●

Only one adjusting shim can be selected.

●

If no adjusting shim with the calculated value is available, select the thicker and closest one.

SDIA1179E

F

: Value obtained by subtracting 163.00 mm (6.42 in) from 
the reading [in increments of 0.01 mm (0.0004 in)].

H

: Value obtained by subtracting 83.00 mm (3.27 in) from 
the reading [in increments of 0.01 mm (0.0004 in)].

I

: Value obtained by subtracting 131.90 mm (5.19 in) from 
the reading [in increments of 0.01 mm (0.0004 in)].

R

: Value obtained by subtracting 17.00 mm (0.67 in) from 
the reading [in increments of 0.01 mm (0.0004 in)].

U

: Value obtained by subtracting 89.50 mm (3.524 in) from 
the reading [in increments of 0.01 mm (0.0004 in)].

T

1

  = (I - F + H + Z - U - R) 

×

 0.01 mm (0.0004 in) + 1.49 mm (0.0587 in)

TF-24

TRANSFER ASSEMBLY

Revision; 2004 April

2003 Murano

At the Gear Ring Bearing on the Adapter Case

1.

Measure the points F, H, J, K, U, and V shown in the measurement points.

2.

Convert the values F, H, J, K, U, and V according to the standards below.

3.

Check dimension Z on the drive gear side face.

NOTE:
Dimension Z indicates the difference between the optimum engagement and the standard dimensions in
increments of 0.01mm (0.0004 in) written on the drive gear side face.

4.

Use the formula below to calculate the thickness of adjusting shim T

2

  at the gear ring bearing on the

adapter case.

5.

Select the adjusting shim.

●

For information on selecting an adjusting shim, refer to 

TF-72, "Gear Ring Bearing Adjusting Shim"

 .

CAUTION:

●

Only one adjusting shim can be selected.

●

If no adjusting shim with the calculated value is available, select the thicker and closest one.

Pinion Sleeve Shim

1.

Measure the points L, N and Q shown in the measurement points.

2.

Check the dimension S written on the gear end of the drive pinion gear.

NOTE:
The dimension S indicates the difference between the optimum engagement and the standard dimensions
in increments of 0.01 mm (0.0004 in) written on the gear end of the drive pinion gear.

3.

Use the formula below to calculate pinion sleeve shim thickness T

3

 .

4.

Select the pinion sleeve shim.

●

For information on selecting a pinion sleeve shim, refer to 

TF-73, "Pinion Sleeve Shim"

 .

CAUTION:

Only one pinion sleeve shim can be selected.

ASSEMBLY
Transfer Case

1.

Select the adjusting shim on the gear ring bearing. Refer to 

TF-72, "Gear Ring Bearing Adjusting Shim"

 .

F

: Value obtained by subtracting 163.00 mm (6.42 in) from 
the reading [in increments of 0.01 mm (0.0004 in)].

H

: Value obtained by subtracting 83.00 mm (3.27 in) from the 
reading [in increments of 0.01 mm (0.0004 in)].

J

: Value obtained by subtracting 109.50 mm (4.31 in) from 
the reading [in increments of 0.01 mm (0.0004 in)].

K

: Value obtained by subtracting 14.40 mm (0.5669 in) from 
the reading ([in increments of 0.01 mm (0.0004 in)].

U

: Value obtained by subtracting 89.50 mm (3.524 in) from 
the reading [in increments of 0.01 mm (0.0004 in)].

V

: Value obtained by subtracting 17.00 mm (0.67 in) from the 
reading [in increments of 0.01 mm (0.0004 in)].

T

2

  = (K + F - H - Z + U - J - V) 

×

 0.01 mm (0.0004 in) + 1.49 mm (0.0587 in)

T

3 

 = [74.6 mm (2.937 in) + S] + N + Q - L

TRANSFER ASSEMBLY

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2.

Using a drift, install the selected adjusting shim and gear ring
bearing outer race.

3.

Install the oil defense, and tighten the mounting bolts to the
specified torque. The clearance between the oil defense and
transfer case (dimension A) should be the following.

CAUTION:

Do not reuse the mounting bolts.

4.

Using a drift, drive the oil seal until it becomes flush with the
case end.

CAUTION:

●

When checking the Total preload torque, measure it with-
out the oil seal, then install the oil seal.

●

Discard old oil seals, replace with new ones.

●

Apply multi-purpose grease onto oil seal lips, and gear
oil onto the circumference of the oil seal.

5.

Apply recommended sealant to plug before installing it to the
transfer case.

6.

Apply recommended sealant to breather tube and install it to the transfer case.

7.

Install the drive gear assembly.

8.

Install the adapter case.

9.

Install the pinion sleeve assembly.

10. Check backlash, preload torque, tooth contact, and companion flange runout. Refer to 

TF-14, "Pre-

Inspection"

 .

CAUTION:

Measure the Total preload torque without the oil seal.

Tool number

A: ST30720000 (J25405)

B: KV40101840 (

—

)

SDIA1563E

Tightening torque

: 6.9 - 8.8 N·m (0.71 - 0.89 kg-m, 61 - 77 in-lb)

Clearance between oil defense and transfer case

Dimension A

: 1.0 - 3.5 mm (0.04 - 0.138 in)

SDIA1534E

Tool number

: ST30720000 (J25405)

Plug tightening torque

: 15 - 19 N·m (1.6 - 1.9 kg-m, 11 - 14 ft-lb)

SDIA1564E

TF-26

TRANSFER ASSEMBLY

Revision; 2004 April

2003 Murano

Drive Gear Assembly

1.

Using a drift, drive the oil seal into the gear ring.

CAUTION:

●

When checking the Total preload torque, measure it with-
out the oil seal, then install the oil seal.

●

Discard old oil seals, replace with new ones.

●

Apply multi-purpose grease onto oil seal lips, and gear
oil onto the circumference of the oil seal.

●

The oil seal back position after the installation shall be
56.5 mm (2.22 in) from the gear ring end.

2.

Apply a thread locking adhesive into the thread hole for the drive
gear.

a.

Completely clean and de grease the drive gear back face,
thread holes, and drive gear mounting bolts. (Use a gasket
remover to remove the thread locking adhesive.)

b.

Apply a thread locking adhesive onto the first and second
threads under the thread hole chamfering of the drive gear on 3
or more different points.

3.

Install the drive gear to gear ring, and apply anti-corrosive oil
onto threads and seats on the mounting bolts, and then tighten
to the specified torque.

CAUTION:

●

Temporary installation before tightening the bolts through to the completion of the tightening
should be within 90 seconds.

●

If the thread locking adhesive is applied aside, quickly wipe it off.

4.

Apply gear oil to gear ring bearing inner race on the transfer
case. Using a drift, install gear ring bearing inner race.

5.

Apply gear oil to gear ring bearing inner race on the adapter
case. Using a drift, install gear ring bearing inner race.

6.

Install the drive gear assembly to the transfer case.

7.

Install the adapter case.

8.

Check backlash, preload torque, tooth contact, and companion
flange runout. Refer to 

TF-14, "Pre- Inspection"

 .

CAUTION:

Measure the Total preload torque without the oil seal.

Tool number

: ST33230000 (J25805-01)

SDIA1565E

Tightening torque

 First (temporary tightening)

: 25 - 29 N·m (2.5 - 3.0 kg-m, 18 - 21 ft-lb)

 Second (final tightening)

: 82 - 115 N·m (8.3 - 11.7 kg-m, 60 - 84 ft-lb)

SDIA1576E

Tool number

A: ST30720000 (J25405)

B: ST27863000 (

—

)

C: KV40101630 (J35870)

SDIA1566E

Tool number

A: ST30720000 (J25405)

B: KV38102510 (

—

)

SDIA1567E

TRANSFER ASSEMBLY

TF-27

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Adapter Case

1.

Select the adjusting shim on the gear ring bearing. Refer to 

TF-72, "Gear Ring Bearing Adjusting Shim"

 .

2.

Install the oil gutter.

3.

Using a drift, install the selected adjusting shim and gear ring
bearing outer race to the adapter case.

4.

Using a drift, drive the oil seal until it becomes flush with the
case end.

CAUTION:

●

When checking the Total preload torque, measure it with-
out the oil seal, then install the oil seal.

●

Discard old oil seals, replace with new ones.

●

Apply multi-purpose grease onto oil seal lips, and gear
oil onto the circumference of the oil seal.

5.

Apply recommended sealant on drain plug and install it to the
adapter case.

6.

Apply multi-purpose grease lightly and evenly onto an O-ring, and install it to the adapter case.

CAUTION:

Do not reuse the O-ring.

7.

Install the adapter case to the transfer case, and apply anti-cor-
rosive oil onto threads and seats on the mounting bolts. Tighten
to the specified torque.

8.

Check backlash, preload torque, tooth contact, and companion
flange runout. Refer to 

TF-14, "Pre- Inspection"

 .

CAUTION:

Measure the Total preload torque without the oil seal.

Tool number

A: ST30720000 (J25405)

B: KV40105230 (

—

)

SDIA1535E

Tool number

: KV38101700 (

—

)

Drain plug tightening torque

: 9.8 - 19.6 N·m (1.0 -1.9 kg-m, 87 - 173 in-lb)

Bolt nominal length

Tightening torque

A

45 mm (1.77 in)

14 - 16 N·m 

(1.5 - 1.6 kg-m, 10.4 - 11.8 ft-lb)

B

30 mm (1.18 in)

SDIA1568E

SDIA1536E

TF-28

TRANSFER ASSEMBLY

Revision; 2004 April

2003 Murano

Pinion Sleeve Assembly

1.

Select the pinion sleeve shim. Refer to 

TF-73, "Pinion Sleeve Shim"

 .

2.

Using a drift, install the pinion rear bearing outer race.

3.

Using a drift, install the pinion front bearing outer race.

4.

Apply gear oil to pinion front bearing inner race and mating posi-
tion on the drive pinion gear. Using a drift, install pinion front
bearing inner race to the drive pinion gear.

5.

Install a collapsible spacer to the drive pinion gear.

CAUTION:

Do not reuse the collapsible spacer.

6.

Apply gear oil to pinion rear bearing inner race and install it to
the pinion sleeve.

7.

Using a drift, install an oil seal to the pinion sleeve.

CAUTION:

●

Discard old oil seals, replace with new ones.

●

Apply multi-purpose grease onto oil seal lips, and gear
oil onto the circumference of the oil seal.

Tool number

: KV38100300 (J25523)

SDIA1569E

Tool number

A: ST33400001 (J26082)

B: ST30901000 (J26010-01)

SDIA1570E

Tool number

: ST30901000 (J26010-01)

SDIA1571E

Tool number

: ST33400001 (J26082)

SDIA1572E

TRANSFER ASSEMBLY

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8.

Using a drift and press in the companion flange.

9.

Apply anti-corrosion oil onto threads and seat of the pinion nut
and adjust the pinion nut tightening torque and pinion bearing
preload torque (P’

1

 ).

CAUTION:

●

Discard the old pinion nut, replace with new ones.

●

Adjust the lower limit of the pinion nut tightening torque first.

●

If specified preload torque is exceeded, replace the collapsible spacer and tighten again. Never
loosen the pinion nut for further preload torque adjustment.

●

After the adjustment, rotate the companion flange back and forth 2 to 3 times to check for
unusual noise, rotation malfunction, and other malfunctions.

10. Apply multi-purpose grease lightly and evenly onto an O-ring, and install it to the pinion sleeve.

CAUTION:

Discard the old O-ring, replace with new one.

11. Assemble the selected pinion sleeve shim.
12. Install the pinion sleeve assembly, and apply anti-corrosive oil onto threads and seats on the mounting

bolts. Tighten to the specified torque.

13. Check backlash, preload torque, tooth contact, and companion flange runout. Refer to 

TF-14, "Pre-

Inspection"

 .

The Total preload torque is as follows:

Tool number

: ST33200000 (J26082)

Pinion nut tightening torque

: 128 - 294 N·m (13 - 29 kg-m, 95 - 216 ft-lb)

Pinion bearing preload torque (P’

1

 )

: 0.40 - 0.78 N·m (0.04 - 0.08 kg-m, 4 - 6 in-lb)

Tightening torque

: 26 - 33 N·m (2.7 - 3.3 kg-m, 20 - 24 ft-lb)

Total preload torque

With all oil seals installed

: P’

1

  + 0.45 - 0.47 N·m (0.045 - 0.048 kg-m, 3.9 - 4.1 in-lb)

Without transfer case oil seal and gear ring oil seal

: P’

1

  + 0.35 - 0.37 N·m (0.035 - 0.038 kg-m, 3.1 - 3.2 in-lb)

SDIA1573E

TF-30

AWD SYSTEM

Revision; 2004 April

2003 Murano

AWD SYSTEM

PFP:41650

System Component

ADS000KV

System Description

ADS000KW

ELECTRIC CONTROLLED COUPLING

●

In response to command current from AWD control unit, control
clutch pull-in force is generated at the electromagnet and torque
is generated at the control clutch.

●

The cam operates in response to control clutch torque and
applies pressure to main clutch.

●

 Main clutch transmits torque from input shaft to output shaft,
according to the amount of pressure.

●

The actual amount of torque transfer is determined by control
current as shown in figure.

AWD CONTROL UNIT  

●

Controls distribution of drive power between front-wheel drive
(100:0) and AWD (50:50) conditions circuit according to signals
from sensors.

●

If malfunction occurs in AWD system, AWD warning lamp turns
ON and vehicle changes to front-wheel drive.

●

 Self-diagnosis can be done with CONSULT-II.

AWD LOCK SWITCH
AUTO Mode 

●

Electronic control allows optimal distribution of torque to front/rear wheels to match road conditions.

●

Makes possible stable driving, with no wheel spin, on snowy roads or other slippery surfaces.

SDIA1607E

SDIA1574E

SDIA1844E

SDIA1490E

AWD SYSTEM

TF-31

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On roads which do not require AWD, it contributes to improved fuel economy by driving in conditions close
to front-wheel drive.

●

Sensors determine the vehicle's turning condition, and in response tight cornering/braking are controlled
by distributing optimum torque to rear wheels.

NOTE:

●

When driving in AUTO mode or LOCK mode, if there is a large difference between front and rear wheel
speed which continues for a long time, oil temperature of drive system parts becomes too high and AWD
warning lamp flashes rapidly. (When AWD warning lamp flashes, vehicle changes to front-wheel drive
conditions.)

●

 When driving in AUTO mode, AWD warning lamp may flash slowly if there is a significant difference in
pressure or wear between tires. At this time, vehicle performance is not fully available and cautious driving
is required. (Continues until engine is turned OFF.)

●

If AWD warning lamp is flashing rapidly, stop vehicle and allow it to idle for some time. Flashing will stop
and AUTO mode will be restored.

●

If the warning lamp flashes slowly during driving but remains OFF after engine is restarted, the system is
normal. If it again flashes slowly after driving for some time, vehicle must be inspected.

●

When the difference of revolution speed between the front and rear wheel with AUTO mode the shift
occasionally changes to LOCK mode automatically. This is not malfunction.

LOCK Mode (AWD LOCK Indicator Lamp ON) 

●

Front/rear wheel torque distribution is fixed, ensuring stable driving when climbing slopes.

●

When LOCK mode is selected, vehicle will switch automatically to AUTO mode if vehicle speed increases.
If vehicle speed then decreases, the vehicle automatically returns to direct 4-wheel driving conditions.

NOTE:
If there is a significant difference in pressure or wear between tires, full vehicle performance is not available.
Tire conditions are detected, and LOCK mode may be prohibited, or else speeds at which LOCK mode is
enabled may be restricted.

AWD WARNING LAMP

Turns ON when there is a malfunction in AWD system. It indicates that fail-safe mode is engaged and vehicle
change to front-wheel drive.
Also turns ON when ignition switch is turned ON, for purpose of bulb check. Turns OFF approximately for 1
seconds after the engine starts if system is normal.

AWD Warning Lamp Indication

FAIL- SAFE FUNCTION

●

If a malfunction occurs in AWD system, and control unit detects the malfunction, AWD warning lamp turns
ON to indicate of system malfunction.

●

When AWD warning lamp is ON, vehicle change to front-wheel drive.

Condition

Display

AWD warning lamp

Lamp check

Turns ON when engine is started to check for burned-out 
lamps.

Turns ON when ignition switch 
is turned ON. Turns OFF 
approximately 1 seconds after 
engine start.

AWD system malfunction

Turns ON if there is malfunction in AWD system.

ON

Large difference in diameter of front/
rear tires

AWD warning lamp flashes slowly.

Flashes once every 2 seconds.

Difference in front/rear wheel speed 
continues and oil temperature of 
drive system has increased.

AWD warning lamp flashes rapidly.

Flashes twice each second.

Other than above (system normal)

OFF

OFF