2005 INFINITI QX4 Factory Service Manual

change wheel recommended oil fog light fuse box tyre pressure bolt pattern

Page 145 of 3419

INFINITI QX4 2005 Factory Service Manual AT-74
TROUBLE DIAGNOSIS
Revision: October 20052005 QX56
39
Slips/Will
Not
EngageWhile accelerating in
3rd, engine races or
slippage occurs.ON vehicle1. Fluid level and stateAT-5 0
2. Line pressure

Page 146 of 3419

INFINITI QX4 2005 Factory Service Manual TROUBLE DIAGNOSIS
AT-75
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: October 20052005 QX56
41
Slips/Will
Not
Engage While accelerating in
5th, engine races or
slippage occurs.ON vehicle1. Fluid level and s

TROUBLE DIAGNOSIS
AT-75
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: October 20052005 QX56
41
Slips/Will
Not
Engage While accelerating in
5th, engine races or
slippage occurs.ON vehicle1. Fluid level and stateAT- 5 0
2. Line pressure testAT- 5 1
3. Accelerator pedal position sensorAT- 1 2 3
4. CAN communication lineAT- 9 5
5. ATF pressure switch 1 and front brake solenoid valveAT- 1 6 0,
AT- 1 4 4
6. Control valve with TCMAT- 2 3 1
OFF vehicle7. Torque converterAT- 2 6 2
8. Oil pump assemblyAT- 2 8 0
9. Front brake (brake band)AT- 2 6 2
10. Input clutchAT- 2 8 4
11. Gear systemAT- 2 5 0
12. High and low reverse clutchAT- 2 9 4
42 Slips at lock-up.ON vehicle1. Fluid level and stateAT- 5 0
2. Line pressure testAT- 5 1
3. Engine speed signalAT- 11 3
4. Turbine revolution sensorAT- 1 3 1
5. Torque converter clutch solenoid valveAT- 11 5
6. CAN communication lineAT- 9 5
7. Control valve with TCMAT- 2 3 1
OFF vehicle8. Torque converterAT- 2 6 29. Oil pump assemblyAT- 2 8 0
43No creep at all.
Refer toAT- 1 8 7 , "
Vehi-
cle Does Not Creep
Backward In “R” Posi-
tion" , AT- 1 9 0 , "Ve h i -
cle Does Not Creep
Forward In “D” Posi-
tion"
ON vehicle1. Fluid level and stateAT- 5 0
2. Line pressure testAT- 5 1
3. Accelerator pedal position sensorAT- 1 2 3
4. ATF pressure switch 5 and direct clutch solenoid valveAT- 1 6 4,
AT- 1 4 8
5. PNP switchAT- 1 0 4
6. CAN communication lineAT- 9 5
7. Control cable adjustmentAT- 2 2 8
8. Control valve with TCMAT- 2 3 1
OFF vehicle9. Torque converterAT- 2 6 2
10. Oil pump assemblyAT- 2 8 0
11. 1st one-way clutchAT- 2 8 9
12. Gear systemAT- 2 5 0
13. Reverse brakeAT- 2 6 2
14. Direct clutchAT- 2 9 6
15. Forward one- way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT- 1 6
, AT-1 7 .)AT- 2 6 2
16. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT- 1 6
, AT- 1 7
.)AT- 2 6 2
No. Items Symptom Condition Diagnostic ItemReference
page

Page 147 of 3419

INFINITI QX4 2005 Factory Service Manual AT-76
TROUBLE DIAGNOSIS
Revision: October 20052005 QX56
44
Slips/Will
Not
EngageVehicle cannot run in
all positions.ON vehicle1. Fluid level and stateAT-5 0
2. Line pressure testAT-5 1
3. PNP switc

Page 148 of 3419

INFINITI QX4 2005 Factory Service Manual TROUBLE DIAGNOSIS
AT-77
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: October 20052005 QX56
48
OthersShift point is low in “D”
position.ON vehicle1. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-

Page 149 of 3419

INFINITI QX4 2005 Factory Service Manual AT-78
TROUBLE DIAGNOSIS
Revision: October 20052005 QX56
53
OthersVehicle dose not
decelerate by engine
brake.
Refer to AT-219,
"Vehicle Does Not
Decelerate By Engine
Brake" .ON vehicle1. PNP swit

Page 150 of 3419

INFINITI QX4 2005 Factory Service Manual TROUBLE DIAGNOSIS
AT-79
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: October 20052005 QX56
56
OthersMaximum speed low.ON vehicle1. Fluid level and stateAT- 5 0
2. Line pressure testAT- 5 1
3. Accelerator pedal

Page 151 of 3419

INFINITI QX4 2005 Factory Service Manual AT-80
TROUBLE DIAGNOSIS
Revision: October 20052005 QX56
60
OthersVehicle runs with
transmission in “N”
position.
Refer to AT-182, "In
“N” Position, Vehicle
Moves" .ON vehicle1. PNP switchA

Page 152 of 3419

INFINITI QX4 2005 Factory Service Manual TROUBLE DIAGNOSIS
AT-81
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: October 20052005 QX56
65 OthersEngine speed does
not return to idle.
Refer to AT- 2 0 9 ,
"Engine Speed Does
Not Return to Idle" .ON veh

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