2004 INFINITI QX56 Factory Service Manual

ESP fuel cap release infotainment open gas tank oil viscosity service reset

Page 153 of 3371

INFINITI QX56 2004 Factory Service Manual AT-82
TROUBLE DIAGNOSIS
Revision: August 20072004 QX56
39
Slips/Will
Not
EngageWhile accelerating in
3rd, engine races or
slippage occurs.ON vehicle1. Fluid level and stateAT-5 8
2. Line pressure

Page 154 of 3371

INFINITI QX56 2004 Factory Service Manual TROUBLE DIAGNOSIS
AT-83
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: August 20072004 QX56
41
Slips/Will
Not
Engage While accelerating in
5th, engine races or
slippage occurs.ON vehicle1. Fluid level and st

TROUBLE DIAGNOSIS
AT-83
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: August 20072004 QX56
41
Slips/Will
Not
Engage While accelerating in
5th, engine races or
slippage occurs.ON vehicle1. Fluid level and stateAT- 5 8
2. Line pressure testAT- 5 9
3. Accelerator pedal position sensorAT- 1 2 9
4. CAN communication lineAT- 1 0 3
5. ATF pressure switch 1 and front brake solenoid valveAT- 1 7 5,
AT- 1 5 1
6. Control valve with TCMAT- 2 4 1
OFF vehicle7. Torque converterAT- 2 7 3
8. Oil pump assemblyAT- 2 9 0
9. Front brake (brake band)AT- 2 7 3
10. Input clutchAT- 2 9 5
11. Gear systemAT- 2 6 1
12. High and low reverse clutchAT- 3 0 5
42 Slips at lock-up.ON vehicle1. Fluid level and stateAT- 5 8
2. Line pressure testAT- 5 9
3. Engine speed signalAT- 11 5
4. Turbine revolution sensorAT- 1 3 4
5. Torque converter clutch solenoid valveAT- 11 8
6. CAN communication lineAT- 1 0 3
7. Control valve with TCMAT- 2 4 1
OFF vehicle8. Torque converterAT- 2 7 39. Oil pump assemblyAT- 2 9 0
43No creep at all.
Refer toAT- 1 9 8 , "
Vehi-
cle Does Not Creep
Backward In “R” Posi-
tion" , AT-201, "Ve hi-
cle Does Not Creep
Forward In “D” Posi-
tion"
ON vehicle1. Fluid level and stateAT- 5 8
2. Line pressure testAT- 5 9
3. Accelerator pedal position sensorAT- 1 2 9
4. ATF pressure switch 5 and direct clutch solenoid valveAT- 1 8 1,
AT- 1 5 7
5. PNP switchAT- 1 0 9
6. CAN communication lineAT- 1 0 3
7. Control cable adjustmentAT- 2 3 4
8. Control valve with TCMAT- 2 4 1
OFF vehicle9. Torque converterAT- 2 7 3
10. Oil pump assemblyAT- 2 9 0
11. 1st one-way clutchAT- 3 0 0
12. Gear systemAT- 2 6 1
13. Reverse brakeAT- 2 7 3
14. Direct clutchAT- 3 0 7
15. Forward one- way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT- 1 8
, AT-1 9 .)AT- 2 7 3
16. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-1 8
, AT - 1 9
.)AT- 2 7 3
No. Items Symptom Condition Diagnostic ItemReference
page

Page 155 of 3371

INFINITI QX56 2004 Factory Service Manual AT-84
TROUBLE DIAGNOSIS
Revision: August 20072004 QX56
44
Slips/Will
Not
EngageVehicle cannot run in
all positions.ON vehicle1. Fluid level and stateAT-5 8
2. Line pressure testAT-5 9
3. PNP switch

Page 156 of 3371

INFINITI QX56 2004 Factory Service Manual TROUBLE DIAGNOSIS
AT-85
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: August 20072004 QX56
48
OthersShift point is low in “D”
position.ON vehicle1. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-

Page 157 of 3371

INFINITI QX56 2004 Factory Service Manual AT-86
TROUBLE DIAGNOSIS
Revision: August 20072004 QX56
53
OthersVehicle dose not
decelerate by engine
brake.
Refer to AT-230,
"Vehicle Does Not
Decelerate By Engine
Brake" .ON vehicle1. PNP swit

Page 158 of 3371

INFINITI QX56 2004 Factory Service Manual TROUBLE DIAGNOSIS
AT-87
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: August 20072004 QX56
56
OthersMaximum speed low.ON vehicle1. Fluid level and stateAT- 5 8
2. Line pressure testAT- 5 9
3. Accelerator pedal

Page 159 of 3371

INFINITI QX56 2004 Factory Service Manual AT-88
TROUBLE DIAGNOSIS
Revision: August 20072004 QX56
60
OthersVehicle runs with
transmission in “N”
position.
Refer to AT-194, "In
“N” Position, Vehicle
Moves" .ON vehicle1. PNP switchA

Page 160 of 3371

INFINITI QX56 2004 Factory Service Manual TROUBLE DIAGNOSIS
AT-89
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: August 20072004 QX56
65 OthersEngine speed does
not return to idle.
Refer to AT- 2 2 0 ,
"Engine Speed Does
Not Return to Idle" .ON veh

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