Infiniti EX35. Manual — part 518
DLN-22
< COMPONENT DIAGNOSIS >
[TRANSFER: ETX13B]
POWER SUPPLY AND GROUND CIRCUIT
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
CHECK AWD SOLENOID POWER SUPPLY (2)
1.
Check the 10A fuse (#33).
2.
Check the harness for open or short between AWD control unit harness connector No.9 terminal and fuse
box.
Is the inspection result normal?
YES
>> Perform the trouble diagnosis for power supply circuit. Refer to
NO
>> Repair or replace damaged parts.
5.
CHECK AWD SOLENOID GROUND
1.
Turn the ignition switch OFF.
2.
Check the continuity between AWD control unit harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace damaged parts.
AWD control unit
—
Voltage
Connector
Terminal
F108
9
Ground
Battery voltage
AWD control unit
—
Continuity
Connector
Terminal
F108
10
Ground
Existed
11
AWD WARNING LAMP
DLN-23
< COMPONENT DIAGNOSIS >
[TRANSFER: ETX13B]
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AWD WARNING LAMP
Description
INFOID:0000000003773515
• Turns ON when there is a malfunction in AWD system. AWD warning lamp indicates the vehicle is in fail-safe
mode and shifting to rear-wheel drive or 4-wheel drive (front-wheels still have some driving torque).
• Also turns ON when ignition switch is turned ON, for the purpose of lamp check. Turns OFF approximately
for 1 second after the engine starts if system is normal.
AWD WARNING LAMP INDICATION
CAUTION:
• AWD warning lamp also turns ON due to data reception error, CAN communication error etc.
Component Function Check
INFOID:0000000003773516
1.
CHECK AWD WARNING LAMP FUNCTION
1.
Turn ignition switch ON.
2.
Make sure that AWD warning lamp lights up.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Proceed to diagnosis procedure. Refer to
Diagnosis Procedure
INFOID:0000000003773517
1.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Perform the trouble diagnosis for power supply and ground circuit. Refer to
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace the malfunctioning part.
2.
PERFORM SELF-DIAGNOSIS
With CONSULT-III
Perform AWD control unit self-diagnosis.
Is any DTC detected?
YES
>> Check the DTC.
NO
>> GO TO 3.
3.
CHECK AWD WARNING LAMP SIGNAL
With CONSULT-III
1.
Turn the ignition switch ON.
CAUTION:
Never start the engine.
2.
Check “4WD WARN LAMP” of AWD control unit CONSULT-III “DATA MONITOR”.
Does the item on “DATA MONITOR” indicate “On”?
YES
>> GO TO 4.
Condition
AWD warning lamp
Lamp check
Turns ON when ignition switch is turned ON. Turns OFF ap-
prox. 1 second after the engine start.
AWD system malfunction
ON
Protection function is activated due to heavy load to electric controlled
coupling. (AWD system is not malfunctioning and AWD system chang-
es to rear wheel drive.)
Quick blinking: 2 times/second
(Blinking in approx. 1 minute and then turning OFF)
Large difference in diameter of front/rear tires
Slow blinking: 1 time/2 seconds
(Continuing to blink until turning ignition switch OFF)
Other than above (system normal)
OFF
DLN-24
< COMPONENT DIAGNOSIS >
[TRANSFER: ETX13B]
AWD WARNING LAMP
NO
>> Replace AWD control unit. Refer to
4.
CHECK COMBINATION METER POWER SUPPLY CIRCUIT
Perform the trouble diagnosis for combination meter power supply circuit. Refer to
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace the malfunctioning part.
AWD CONTROL UNIT
DLN-25
< ECU DIAGNOSIS >
[TRANSFER: ETX13B]
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ECU DIAGNOSIS
AWD CONTROL UNIT
Reference Value
INFOID:0000000003561203
VALUES ON THE DIAGNOSIS TOOL
*: The values are changed by throttle opening and engine speed.
TERMINAL LAYOUT
Monitor item
Condition
Value/Status
STOP LAMP SW
Brake pedal: Depressed
On
Brake pedal: Released
Off
ENG SPEED SIG
Engine stopped
(Engine speed: Less than 400 rpm)
Stop
Engine running
(Engine speed: 400 rpm or more)
Run
ETS ACTUATOR
Engine stopped (Ignition switch: ON)
Off
Engine running
On
4WD WARN LAMP
AWD warning lamp: ON
On
AWD warning lamp: OFF
Off
4WD MODE SW
Always
##
4WD MODE MON
Engine running
AUTO
DIS-TIRE MONI
Vehicle running with normal size tire installed
0 – 4 mm
Vehicle running with improper size tire installed (Front/rear tire size
difference, wear condition)
4 – 8 mm, 8 – mm
P BRAKE SW
Parking brake operated
On
Parking brake not operated
Off
BATTERY VOLT
Always
Battery voltage
THRTL POS SEN
When depressing accelerator pedal
(Value rises gradually in response to throttle position.)
0 – 100%
ETS SOLENOID
Engine running
• At idle speed
Approx. 0.000 A
Engine running
• 3,000 rpm or more constant
Approx. 0.000 – 0.500 A*
FR RH SENSOR
Vehicle stopped
0.00 km/h (0.00 mph)
Vehicle running
CAUTION:
Check air pressure of tire under standard condition.
Approx. equal to the indication
on speedometer (Inside of
±
10%)
FR LH SENSOR
Vehicle stopped
0.00 km/h (0.00 mph)
Vehicle running
CAUTION:
Check air pressure of tire under standard condition.
Approx. equal to the indication
on speedometer (Inside of
±
10%)
RR RH SENSOR
Vehicle stopped
0.00 km/h (0.00 mph)
Vehicle running
CAUTION:
Check air pressure of tire under standard condition.
Approx. equal to the indication
on speedometer (Inside of
±
10%)
RR LH SENSOR
Vehicle stopped
0.00 km/h (0.00 mph)
Vehicle running
CAUTION:
Check air pressure of tire under standard condition.
Approx. equal to the indication
on speedometer (Inside of
±
10%)
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