Infiniti QX4 (R50). Manual — part 569
Indicated items
Display
Conditions
4WD-mode
2WD
4WD shift switch
In “2WD” position
AUTO
In “AUTO” position
LOCK
In “4H” position
4L
In “4LO” position
Front wheel speed
0 - 255 km/h (0 - 158 MPH)
0 km/h (vehicle at standstill)
Rear wheel speed
0 - 255 km/h (0 - 158 MPH)
0 km/h (vehicle at standstill)
Shift ACTR operating 1,
Shift activating monitor 1
OFF
During normal operation
ON
During shifts from “4H” to “4LO” position
Shift ACTR operating 2,
Shift activating monitor 2
OFF
During normal operation
ON
During shifts from “4LO” to “4H” position
4WD fail lamp
OFF
During normal operation
ON
During 2-second period (after key switch turned to “ON”) or
when system is out of order
Shift ACTR position sensing
switch 1
OFF
4WD shift switch is in a position other than “4LO”.
ON
4WD shift switch in “4LO” position
Shift ACTR position sensing
switch 2
OFF
4WD shift switch in “4LO” position
ON
4WD shift switch is in a position other than “4LO”.
2WD indicator lamp
OFF
Engine at rest or system out of order
ON
Except the above condition
AUTO indicator lamp
OFF
Engine at rest during 2WD-mode operation or system out of
order
ON
4WD shift switch in “4LO” or “4H” position and A/T selector
lever in “AUTO” position
LOCK indicator lamp
OFF
Engine at rest and A/T selector lever in “AUTO” position during
2WD-mode operation or system out of order
ON
4WD shift switch in “4H” or “4LO” position
4L indicator lamp
OFF
Engine at rest and A/T selector lever in “AUTO” position during
2WD-mode operation or system out of order
ON
4WD shift switch in “4LO” position
WORK SUPPORT
NBTF0012S06
Purpose
NBTF0012S0601
When there is no problem with transfer and 4WD system, follow-
ing symptoms in “AUTO” mode may be claimed by a customer.
I
Tight corner braking symptom after accelerator (throttle) open-
ing (Note 1)
I
Vibration when accelerating on a low µ road (snow-covered or
icy road) (Note 2)
It is possible to deal with these symptoms by changing
“CLUTCH FORCE RELEASE LIMIT VALUE”. However, be
careful when changing the values because it may adversely
affect driving performance.
NOTE:
1)
When the accelerator is slightly open (approx. 1/8) or fully
closed after being opened. The tight corner braking symptom
during idle creep driving with accelerator fully closed cannot be
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
Trouble Diagnosis with CONSULT-II (Cont’d)
TF-38
solved by this method. Refer to SYMPTOM 8, TF-108.
2)
A slight shock is felt at a few hertz as if it were being pushed
lightly from behind.
SMT962D
CONSULT-II Setting Procedure
NBTF0012S0602
1.
Turn ignition switch to “OFF” position.
2.
Connect CONSULT-II to data link connector, which is located
in instrument lower panel on driver side.
3.
Turn ignition switch to “ON” position.
4.
Touch “START”.
5.
Touch “ALL MODE 4WD”.
SMT965D
6.
Touch “WORK SUPPORT”.
SMT967D
7.
Select WORK ITEM by touching “CLUTCH/F RLS LIM ADJ”.
NOTE:
“START TORQ OFFSET ADJ” is displayed, but the transfer does
not have this function.
CLUTCH FORCE RELEASE LIMIT ADJUSTMENT
NBTF0012S07
1.2 kg-m: Tight corner braking symptom is alleviated. However,
vibration may occur when accelerating on a low µ road (icy road,
etc.).
0.3 kg-m: Initial set value
0.2 kg-m: Do not set to this value because the tight corner braking
symptom will get worse.
GI
MA
EM
LC
EC
FE
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
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IDX
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
Trouble Diagnosis with CONSULT-II (Cont’d)
TF-39
SMT968D
1.
Current CLUTCH FORCE RELEASE LIMIT value “0.3 kg-m”
appears under “CONDITION SETTING” on CONSULT-II dis-
play.
2.
Touch “1.2” on the display.
SMT969D
3.
Display changes to “NOW ADJUSTING” in a short time.
SMT970D
4.
When clutch force release limit value is set to “1.2 kg-m”, cur-
rent value “0.3 kg-m” shown on display will be replaced by “1.2
kg-m” and “ADJUSTING COMPLETE” will appear at the same
time. Clutch force release limit value setting is now complete.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
Trouble Diagnosis with CONSULT-II (Cont’d)
TF-40
Introduction
NBTF0013
DESCRIPTION
NBTF0013S01
When a malfunction (indicated by the 4WD warning lamp illumination) occurs, collect information first from the
customer about how the malfunction occurs. Then, proceed with the diagnosis presuming it is the cause. Also
inspect the electrical system, paying close attention to other possibilities such as fluid level and leaks.
All-mode 4WD transfer is controlled by transfer control unit and sensors.
If a malfunction occurs in the all-mode 4WD system, the 4WD warning lamp lights up to inform of the system
malfunction. There are two ways to identify the cause of the malfunction.
1) Performing the self-diagnosis. (The 4WD warning lamp will indicate what kind of malfunction has occurred
by flickering.)
2) Performing diagnosis using CONSULT-II.
DIAGNOSTIC WORKSHEET
NBTF0013S02
Information from Customer
NBTF0013S0201
KEY POINTS
WHAT . . Vehicle model
WHEN. . Date, Frequencies
WHERE. . Road conditions
HOW. . Operating conditions, Symptoms
Information sheet from customer
Customer name MR/MS
Model & Year
VIN
Transfer model
ATX14A
Engine
Mileage
Incident Date
Manuf. Date
In Service Date
Frequency
l
Continuous
l
Intermittent (
times a day)
Symptoms
l
4WD shift indicator lamp does not turn on.
l
4WD warning lamp does not turn on.
l
4WD shift indicator lamp does not turn off.
l
ATP warning lamp does not turn on.
l
4LO indicator lamp does not turn on.
l
4WD shift indicator lamp does not indicate “4H”.
l
4WD shift indicator lamp repeats flicking.
l
Tight corner braking symptom occurs.
l
4WD system does not operate.
l
Others.
4WD warning lamp
l
Continuously lit
l
Not lit
GI
MA
EM
LC
EC
FE
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — INTRODUCTION
Introduction
TF-41
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