2001 INFINITI QX4 elec

2. CHECK AT IDLE=NBAT0024S03
1 CHECK ENGINE START
1. Park vehicle on flat surface.
2. Turn ignition switch to ªOFFº position.
3. Move selector lever to ªPº or ªNº position.
4. Turn ignition switch to start position.
5. Is engine started?
YesorNo
Ye s©GO TO 2.
No©Go to ª2. Engine Cannot Be Started In ªPº and ªNº Positionº, AT-221.
2 CHECK ENGINE START
1. Turn ignition switch to ªOFFº position.
2. Move selector lever to ªDº, ª1º, ª2º or ªRº position.
3. Turn ignition switch to start position.
4. Is engine started?
YesorNo
Ye s©Go to ª2. Engine Cannot Be Started In ªPº and ªNº Positionº, AT-221.
No©GO TO 3.
3 CHECK VEHICLE MOVE
1. Turn ignition switch to ªOFFº position.
2. Move selector lever to ªPº position.
3. Release parking brake.
4. Push vehicle forward or backward.
5. Does vehicle move when it is pushed forward or backward?
SAT796A
YesorNo
Ye s©Go to ª3. In ªPº Position, Vehicle Moves Forward Or Backward When Pushedº, AT-222.
No©GO TO 4.
4 CHECK VEHICLE MOVE
1. Apply parking brake.
2. Move selector lever to ªNº position.
3. Turn ignition switch to ªSTARTº position and start engine.
4. Release parking brake.
5. Does vehicle move forward or backward?
YesorNo
Ye s©Go to ª4. In ªNº Position, Vehicle Movesº, AT-223.
No©GO TO 5.
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-66

5 CHECK SHIFT SHOCK
1. Apply foot brake.
2. Move selector lever to ªRº position.
3. Is there large shock when changing from ªNº to ªRº position?
SAT082J
YesorNo
Ye s©Go to ª5. Large Shock. ªNº,ªRº Positionº, AT-225.
No©GO TO 6.
6 CHECK VEHICLE MOVE
1. Release foot brake for several seconds.
2. Does vehicle creep backward when foot brake is released?
YesorNo
Ye s©GO TO 7.
No©Go to ª6. Vehicle Does Not Creep Backward In ªRº Positionº, AT-227.
7 CHECK VEHICLE MOVE
1. Move selector lever to ªDº, ª2º and ª1º position and check if vehicle creeps forward.
2. Does vehicle creep forward in all three positions?
YesorNo
Ye s©Go to ª3. Cruise testº, AT-67.
No©Go to ª7. Vehicle Does Not Creep Forward In ªDº, ª2º Or ª1º Positionº, AT-230.
SAT601J
3. CRUISE TESTNBAT0024S04ICheck all items listed in Parts 1 through 3.
With CONSULT-IINBAT0024S0401IUsing CONSULT-II, conduct a cruise test and record the result.
IPrint the result and ensure that shifts and lock-ups take place
as per ªShift Scheduleº.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-67

Cruise Test Ð Part 1=NBAT0024S0404
1 CHECK STARTING GEAR (D1) POSITION
1. Drive vehicle for approx. 10 minutes to warm engine oil and ATF up to operating temperature.
ATF operating temperature:
50 - 80ÉC (122 - 176ÉF)
2. Park vehicle on flat surface.
3. Set overdrive control switch to ªONº position.
4. Move selector lever to ªPº position.
SAT001J
5. Start engine.
6. Move selector lever to ªDº position.
SAT952I
7. Accelerate vehicle by constantly depressing accelerator pedal halfway.
SAT953I
8. Does vehicle start from D1?
Read gear position.
YesorNo
Ye s©GO TO 2.
No©Go to ª8. Vehicle Cannot Be Started From D
1º, AT-233.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-71

Cruise Test Ð Part 2=NBAT0024S0405
1 CHECK STARTING GEAR (D1) POSITION
1. Confirm overdrive control switch is in ªONº position.
2. Confirm selector lever is in ªDº position.
3. Accelerate vehicle by half throttle again.
4. Does vehicle start from D
1?
Read gear position.
SAT495G
YesorNo
Ye s©GO TO 2.
No©Go to ª16. Vehicle Does Not Start From D
1º, AT-252.
2 CHECK SHIFT UP AND SHIFT DOWN (D3TO D4TO D2)
1. Accelerate vehicle to 80 km/h (50 MPH) as shown in illustration.
2. Release accelerator pedal and then quickly depress it fully.
3. Does A/T shift from D
4to D2as soon as accelerator pedal is depressed fully?
Read gear position and throttle position.
SAT404H
YesorNo
Ye s©GO TO 3.
No©Go to ª9. A/T Does Not Shift: D
3,D4Or Does Not Kickdown: D4,D2º, AT-236.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-75

Cruise Test Ð Part 3=NBAT0024S0406
1 VEHICLE SPEED D4POSITION
1. Confirm overdrive control switch is in ªONº position.
2. Confirm selector lever is in ªDº position.
3. Accelerate vehicle using half-throttle to D
4.
SAT812A
©GO TO 2.
2 CHECK SHIFT DOWN (D4TO D3)
1. Release accelerator pedal.
2. Set overdrive control switch to ªOFFº position while driving in D
4.
3. Does A/T shift from D
4to D3(O/D OFF)?
Read gear position and vehicle speed.
SAT999IA
YesorNo
Ye s©GO TO 3.
No©Go to ª17. A/T Does Not Shift: D
4,D3, When Overdrive Control Switch ªONº,ªOFFº,
AT-253.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-77

3 CHECK ENGINE BRAKE
Does vehicle decelerate by engine brake?
SAT999IA
YesorNo
Ye s©GO TO 4.
No©Go to ª15. Engine Speed Does Not Return To Idle (Light Braking D
4,D3)º, AT-250.
4 CHECK SHIFT DOWN (D3TO D2)
1. Move selector lever from ªDº to ª2º position while driving in D3(O/D OFF).
2. Does A/T shift from D
3(O/D OFF) to 22?
Read gear position.
SAT791GB
YesorNo
Ye s©GO TO 5.
No©Go to ª18. A/T Does Not Shift: D
3,D2, When Selector Lever ªDº,ª2º Positionº,
AT-254.
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-78

5 CHECK ENGINE BRAKE
Does vehicle decelerate by engine brake?
SAT791GB
YesorNo
Ye s©GO TO 6.
No©Go to ª15. Engine Speed Does Not Return To Idle (Light Braking D
4,D3)º, AT-250.
6 CHECK SHIFT DOWN (22TO 11)
1. Move selector lever from ª2º to ª1º position while driving in 22.
2. Does A/T shift from 2
2to 11position?
SAT778B
YesorNo
Ye s©GO TO 7.
No©Go to ª19. A/T Does Not Shift: 2
2,11, When Selector lever ª2º,ª1º Positionº, AT-255.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-79

Terminal
No.Wire color Item ConditionJudgement
standard
(Approx.)
24 W/GASCD OD cut
signal
When ªACCELº set switch on ASCD cruise is
released.5 - 10V
When ªACCELº set switch on ASCD cruise is
applied.Less than 2V
25 B Ground
Ð0V
26 GPNP switch ª1º
position
When setting selector lever to ª1º position.Battery volt-
age
When setting selector lever to other positions. 0V
27 G/WPNP switch ª2º
positionWhen setting selector lever to ª2º position.Battery volt-
age
When setting selector lever to other positions. 0V
28 R/YPower source
(Memory back-up)
or
When turning ignition switch to ªOFFº.Battery volt-
age
When turning ignition switch to ªONº.Battery volt-
age
29 WRevolution sensor
(Measure in AC
range)
When vehicle cruises at 30 km/h (19 MPH).1V or more
Voltage rises
gradually in
response to
vehicle speed.
When vehicle parks. 0V
30*2 W (RX)
ÐÐ
31*2 L (TX) Ð Ð
32 P/BThrottle position
sensor
(Power source)Ignition switch ªONº. 4.5 - 5.5V
Ignition switch ªOFFº. 0V
33*1 G/R LAN Ð Ð
34 LPNP switch ªDº
position
When setting selector lever to ªDº position.Battery volt-
age
When setting selector lever to other positions. 0V
35 YPNP switch ªRº
positionWhen setting selector lever to ªRº position.Battery volt-
age
When setting selector lever to other positions. 0V
36 PPNP switch ªNº or
ªPº positionWhen setting selector lever to ªNº or ªPº posi-
tion.Battery volt-
age
When setting selector lever to other positions. 0V
37 Ð Ð Ð Ð
38 WTurbine revolution
sensor (Measure
in AC range)
When engine is running at 1,000 rpm1.2V
Voltage rises
gradually in
response to
engine speed.
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
TCM Terminals and Reference Value (Cont'd)
AT-94