Infiniti FX35, FX50 (S51). Manual — part 549
AWD WARNING LAMP
DLN-31
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: ETX13C]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
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 error-detected parts.
DLN-32
< ECU DIAGNOSIS INFORMATION >
[TRANSFER: ETX13C]
AWD CONTROL UNIT
ECU DIAGNOSIS INFORMATION
AWD CONTROL UNIT
Reference Value
INFOID:0000000005249075
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%)
AWD CONTROL UNIT
DLN-33
< ECU DIAGNOSIS INFORMATION >
[TRANSFER: ETX13C]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
PHYSICAL VALUES
*: The values are changed by throttle opening and engine speed.
CAUTION:
When using circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.
JSDIA0057ZZ
Terminal No.
(Wire color)
Description
Condition
Value (Approx.)
+
-
Signal name
Input/
Output
1
(BR)
Ground
AWD solenoid power sup-
ply
Output
Engine speed: At idle
0 V
Engine speed: 3,000 rpm or more constant
2.5 V*
2
(Y)
Ground
AWD solenoid ground
—
Engine speed: At idle
0 V
Engine speed: 3,000 rpm or more constant
0 V
3
(W)
Ground
Transfer fluid temperature
sensor ground
—
Always
0 V
7
(GR)
Ground
Ignition switch
Input
Ignition switch: ON
Battery voltage
Ignition switch: OFF
0 V
8
(L)
—
CAN-H
Input/
Output
—
—
9
(O)
Ground
Power supply (AWD sole-
noid)
Input
Always
Battery voltage
10
(B)
Ground
Ground
—
Always
0 V
11
(B)
Ground
Ground
—
Always
0 V
13
(LG)
Ground
Transfer fluid temperature
sensor power supply
Output
Transfer temperature: 20C
°
(68
°
F)
1.56 V
Transfer temperature: 80C
°
(176
°
F)
0.44 V
15
(Y)
Ground
Power supply (AWD con-
trol unit)
Input
Always
Battery voltage
16
(P)
—
CAN-L
Input/
Output
—
—
DLN-34
< ECU DIAGNOSIS INFORMATION >
[TRANSFER: ETX13C]
AWD CONTROL UNIT
Wiring Diagram - AWD SYSTEM -
INFOID:0000000005249076
JCDWA0568GB
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