INFINITI QX4 2001 Factory Manual PDF

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.
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TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-67

SAT131K
CONSULT-II Setting ProcedureNBAT0024S04021. Turn ignition switch ªOFFº.
2. Connect CONSULT-II to data link connector, which is located
in instrument lower panel on driver side.
SAT586J
3. Turn ignition switch ªONº.
4. Touch ªSTARTº.
SAT014K
5. Touch ªA/Tº.
SAT971J
6. Touch ªDATA MONITORº.
SAT175K
7. Touch ªMAIN SIGNALSº or ªTCM INPUT SIGNALSº.
8. See ªNumerical Displayº, ªBarchart Displayº or ªLine Graph
Displayº.
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-68

SAT973J
9. Touch ªSETTINGº to set recording condition (ªAUTO TRIGº or
ªMANU TRIGº) and touch ªBACKº.
10. Touch ªStartº.
SAT134K
11. When performing cruise test, touch ªRECORDº.
SAT135K
12. After finishing cruise test part 1, touch ªSTOPº.
SAT987J
SAT974J
13. Touch ªSTOREº and touch ªBACKº.
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TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-69

SAT975J
14. Touch ªDISPLAYº.
15. Touch ªPRINTº.
16. Check the monitor data printed out.
17. Continue cruise test part 2 and 3.
SAT513J
Without CONSULT-IINBAT0024S0403IThrottle position sensor can be checked by voltage across
terminals 41 and 42 of TCM.
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-70

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.
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TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-71

2 CHECK SHIFT UP (D1TO D2)
Does A/T shift from D1to D2at the specified speed?
Read gear position, throttle opening and vehicle speed.
Specified speed when shifting from D
1to D2:
Refer to Shift schedule, AT-356.
SAT954I
YesorNo
Ye s©GO TO 3.
No©Go to ª9. A/T Does Not Shift: D
1,D2or Does Not Kickdown: D4,D2º, AT-236.
3 CHECK SHIFT UP (D2TO D3)
Does A/T shift from D2to D3at the specified speed?
Read gear position, throttle opening and vehicle speed.
Specified speed when shifting from D
2to D3:
Refer to Shift schedule, AT-356.
SAT955I
YesorNo
Ye s©GO TO 4.
No©Go to ª10. A/T Does Not Shift: D
2,D3º, AT-239.
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-72

4 CHECK SHIFT UP (D3TO D4)
Does A/T shift from D3to D4at the specified speed?
Read gear position, throttle opening and vehicle speed.
Specified speed when shifting from D
3to D4:
Refer to Shift schedule, AT-356.
SAT956I
YesorNo
Ye s©GO TO 5.
No©Go to ª11. A/T Does Not Shift: D
3,D4º, AT-242.
5 CHECK LOCK-UP (D4TO D4L/U)
Does A/T perform lock-up at the specified speed?
Read vehicle speed, throttle position when lock-up duty becomes 94%.
Specified speed when lock-up occurs:
Refer to Shift schedule, AT-356.
SAT957I
YesorNo
Ye s©GO TO 6.
No©Go to ª12. A/T Does Not Perform Lock-upº, AT-245.
6 CHECK HOLD LOCK-UP
Does A/T hold lock-up condition for more than 30 seconds?
YesorNo
Ye s©GO TO 7.
No©Go to ª13. A/T Does Not Hold Lock-up Conditionº, AT-247.
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TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-73

7 CHECK LOCK-UP OFF (D4L/U TO D4)
1. Release accelerator pedal.
2. Is lock-up released when accelerator pedal is released?
SAT958I
YesorNo
Ye s©GO TO 8.
No©Go to ª14. Lock-up Is Not Releasedº, AT-249.
8 CHECK SHIFT DOWN (D4TO D3)
1. Decelerate vehicle by applying foot brake lightly.
2. Does engine speed return to idle smoothly when A/T is shifted from D
4to D3?
Read gear position and engine speed.
SAT959I
YesorNo
Ye s©1. Stop vehicle.
2. Go to ªCruise test Ð Part 2º, AT-75.
No©Go to ª15. Engine Speed Does Not Return To Idle (Light Braking D
4,D3)º, AT-250.
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-74

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.
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TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-75