AT-72
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
36
Slips/Will
Not
EngageWith selector lever in
“R” position, accelera-
tion is extremely poor.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Line pressure testAT- 5 0
3. Accelerator pedal position sensorAT- 1 3 1
4. High and low reverse clutch solenoid valveAT- 1 5 1
5. CAN communication lineAT- 9 4
6. PNP switchAT- 1 0 2
7. A/T positionAT- 2 0 6
8. Control valve with TCMAT- 2 1 5
OFF vehicle9. Gear systemAT- 2 4 610. Output shaftAT- 2 5 5
11. Reverse brakeAT- 2 5 5
37While starting off by
accelerating in 1st,
engine races or slip-
page occurs.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Line pressure testAT- 5 0
3. Accelerator pedal position sensorAT- 1 3 1
4. CAN communication lineAT- 9 4
5. Control valve with TCMAT- 2 1 5
OFF vehicle6. Torque converterAT- 2 5 5
7. Oil pump assemblyAT- 2 7 1
8. 3rd one-way clutchAT- 2 7 4
9. 1st one-way clutchAT- 2 8 1
10. Gear systemAT- 2 4 6
11. Reverse brakeAT- 2 5 5
12. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT-17, "
Cross-sectional View" .)AT- 2 5 5
13. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-sectional View" .)AT- 2 5 5
No. Items Symptom Condition Diagnostic ItemReference
page
TROUBLE DIAGNOSIS
AT-73
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 November2007 350Z
38
Slips/Will
Not
EngageWhile accelerating in
2nd, engine races or
slippage occurs.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Line pressure testAT- 5 0
3. Accelerator pedal position sensorAT-131
4. CAN communication lineAT- 9 4
5. Direct clutch solenoid valveAT-149
6. Control valve with TCMAT-215
OFF vehicle7. Torque converterAT-255
8. Oil pump assemblyAT-271
9. 3rd one-way clutchAT-274
10. Gear systemAT-246
11. Direct clutchAT-288
12. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-sectional View" .)AT-255
39While accelerating in
3rd, engine races or
slippage occurs.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Line pressure testAT- 5 0
3. Accelerator pedal position sensorAT-131
4. CAN communication lineAT- 9 4
5. High and low reverse clutch solenoid valveAT-151
6. Control valve with TCMAT-215
OFF vehicle7. Torque converterAT-255
8. Oil pump assemblyAT-271
9. 3rd one-way clutchAT-274
10. Gear systemAT-246
11. High and low reverse clutchAT-286
12. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT- 1 7 , "
Cross-sectional View" .)AT-255
13. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-sectional View" .)AT-255
No. Items Symptom Condition Diagnostic ItemReference
page
AT-74
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
40
Slips/Will
Not
EngageWhile accelerating in
4th, engine races or
slippage occurs.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Line pressure testAT- 5 0
3. Accelerator pedal position sensorAT- 1 3 1
4. CAN communication lineAT- 9 4
5. Input clutch solenoid valveAT- 1 4 5
6. Control valve with TCMAT- 2 1 5
OFF vehicle7. Torque converterAT- 2 5 5
8. Oil pump assemblyAT- 2 7 1
9. Input clutchAT- 2 7 6
10. Gear systemAT- 2 4 6
11. High and low reverse clutchAT- 2 8 6
12. Direct clutchAT- 2 8 8
41While accelerating in
5th, engine races or
slippage occurs.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Line pressure testAT- 5 0
3. Accelerator pedal position sensorAT- 1 3 1
4. CAN communication lineAT- 9 4
5. Front brake solenoid valveAT- 1 4 7
6. Control valve with TCMAT- 2 1 5
OFF vehicle7. Torque converterAT- 2 5 5
8. Oil pump assemblyAT- 2 7 1
9. Front brake (brake band)AT- 2 5 5
10. Input clutchAT- 2 7 6
11. Gear systemAT- 2 4 6
12. High and low reverse clutchAT- 2 8 6
42 Slips at lock-up.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Line pressure testAT- 5 0
3. Engine speed signalAT- 11 3
4. Turbine revolution sensorAT- 1 0 6
5. Torque converter clutch solenoid valveAT- 1 2 5
6. CAN communication lineAT- 9 4
7. Control valve with TCMAT- 2 1 5
OFF vehicle8. Torque converterAT- 2 5 59. Oil pump assemblyAT- 2 7 1
No. Items Symptom Condition Diagnostic ItemReference
page
TROUBLE DIAGNOSIS
AT-75
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 November2007 350Z
43
Slips/Will
Not
EngageNo creep at all.
Refer to AT-177,
"Vehicle Does Not
Creep Backward in
“R” Position" , AT-179,
"Vehicle Does Not
Creep Forward in “D”
Position" .ON vehicle1. A/T fluid level and stateAT- 4 9
2. Line pressure testAT- 5 0
3. Accelerator pedal position sensorAT-131
4. Direct clutch solenoid valveAT-149
5. PNP switchAT-102
6. CAN communication lineAT- 9 4
7. A/T positionAT-206
8. Control valve with TCMAT-215
OFF vehicle9. Torque converterAT-255
10. Oil pump assemblyAT-271
11. 1st one-way clutchAT-281
12. Gear systemAT-246
13. Reverse brakeAT-255
14. Direct clutchAT-288
15. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT- 1 7 , "
Cross-sectional View" .)AT-255
16. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-sectional View" .)AT-255
44Vehicle cannot run in
all positions.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Line pressure testAT- 5 0
3. PNP switchAT-102
4. A/T positionAT-206
5. Control valve with TCMAT-215
OFF vehicle6. Oil pump assemblyAT-2717. Gear systemAT-246
8. Output shaftAT-255
No. Items Symptom Condition Diagnostic ItemReference
page
AT-76
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
45
Slips/Will
Not
EngageWith selector lever in
“D” position, driving is
not possible.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Line pressure testAT- 5 0
3. PNP switchAT- 1 0 2
4. A/T positionAT- 2 0 6
5. Control valve with TCMAT- 2 1 5
OFF vehicle6. Torque converterAT- 2 5 5
7. Oil pump assembly AT- 2 7 1
8. 1st one-way clutchAT- 2 8 1
9. Gear systemAT- 2 4 6
10. Reverse brakeAT- 2 5 5
11. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT-17, "
Cross-sectional View" .)AT- 2 5 5
12. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-sectional View" .)AT- 2 5 5
46With selector lever in
“R” position, driving is
not possible.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Line pressure testAT- 5 0
3. PNP switchAT- 1 0 2
4. A/T positionAT- 2 0 6
5. Control valve with TCMAT- 2 1 5
OFF vehicle6. Gear systemAT- 2 4 67. Output shaftAT- 2 5 5
8. Reverse brakeAT- 2 5 5
47
Does Not
ChangeDoes not change M
5
→ M
4 .
Refer to AT-196, "
A/T
Does Not Shift: 5th
Gear → 4th Gear" .ON vehicle1. PNP switchAT- 1 0 2
2. A/T fluid level and stateAT- 4 9
3. A/T positionAT- 2 0 6
4. Manual mode switchAT- 1 5 7
5. CAN communication lineAT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle 7. Front brake (brake band)AT- 2 5 5
48Does not change M
4
→ M
3 .
Refer to AT-198, "
A/T
Does Not Shift: 4th
Gear → 3rd Gear" .ON vehicle1. PNP switchAT- 1 0 2
2. A/T fluid level and stateAT- 4 9
3. A/T positionAT- 2 0 6
4. Manual mode switchAT- 1 5 7
5. CAN communication lineAT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle7. Front brake (brake band)AT- 2 5 58. Input clutchAT- 2 7 6
No. Items Symptom Condition Diagnostic ItemReference
page
AT-78
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
54
OthersJudder occurs during
lock-up.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Engine speed signalAT- 11 3
3. Turbine revolution sensorAT- 1 0 6
4. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 9
5. Accelerator pedal position sensorAT- 1 3 1
6. CAN communication lineAT- 9 4
7. Torque converter clutch solenoid valveAT- 1 2 5
8. Control valve with TCMAT- 2 1 5
OFF vehicle 9. Torque converterAT- 2 5 5
55Strange noise in “R”
position.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Engine speed signalAT- 11 3
3. CAN communication lineAT- 9 4
4. Control valve with TCMAT- 2 1 5
OFF vehicle5. Torque converterAT- 2 5 5
6. Oil pump assemblyAT- 2 7 1
7. Gear systemAT- 2 4 6
8. High and low reverse clutchAT- 2 8 6
9. Reverse brakeAT- 2 5 5
56Strange noise in “N”
position.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Engine speed signalAT- 11 3
3. CAN communication lineAT- 9 4
4. Control valve with TCMAT- 2 1 5
OFF vehicle5. Torque converterAT- 2 5 56. Oil pump assemblyAT- 2 7 1
7. Gear systemAT- 2 4 6
57Strange noise in “D”
position.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Engine speed signalAT- 11 3
3. CAN communication lineAT- 9 4
4. Control valve with TCMAT- 2 1 5
OFF vehicle5. Torque converterAT- 2 5 5
6. Oil pump assemblyAT- 2 7 1
7. Gear systemAT- 2 4 6
8. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-sectional View" .)AT- 2 5 5
No. Items Symptom Condition Diagnostic ItemReference
page
AT-80
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
62
OthersEngine brake does
not work M2 → M1 .ON vehicle1. PNP switchAT- 1 0 2
2. A/T fluid level and stateAT- 4 9
3. A/T positionAT- 2 0 6
4. Manual mode switchAT- 1 5 7
5. CAN communication lineAT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle7. Input clutchAT- 2 7 68. High and low reverse clutchAT- 2 8 6
9. Direct clutchAT- 2 8 8
63 Maximum speed low.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Line pressure testAT- 5 0
3. Accelerator pedal position sensorAT- 1 3 1
4. CAN communication lineAT- 9 4
5. Direct clutch solenoid valveAT- 1 4 9
6. Control valve with TCMAT- 2 1 5
OFF vehicle7. Torque converterAT- 2 5 5
8. Oil pump assemblyAT- 2 7 1
9. Input clutchAT- 2 7 6
10. Gear systemAT- 2 4 6
11. High and low reverse clutchAT- 2 8 6
12. Direct clutchAT- 2 8 8
13. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT-17, "
Cross-sectional View" .)AT- 2 5 5
14 Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-sectional View" .)AT- 2 5 5
64Extremely large
creep.ON vehicle1. Engine idle speed EC-76
2. CAN communication lineAT- 9 4
OFF vehicle 3. Torque converterAT- 2 5 5
65With selector lever in
“P” position, vehicle
does not enter parking
condition or, with
selector lever in
another position, park-
ing condition is not
cancelled.ON vehicle1. PNP switchAT- 1 0 2
2. A/T positionAT- 2 0 6
3. Parking pawl componentsAT- 2 4 6
66Vehicle runs with A/T
in “P” position.ON vehicle1. PNP switchAT- 1 0 2
2. A/T fluid level and stateAT- 4 9
3. A/T positionAT- 2 0 6
4. Control valve with TCMAT- 2 1 5
5. Parking pawl componentsAT- 2 4 6
OFF vehicle 6. Gear systemAT- 2 4 6
No. Items Symptom Condition Diagnostic ItemReference
page
TROUBLE DIAGNOSIS
AT-81
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 November2007 350Z
67
OthersVehicle runs with A/T
in “N” position.
Refer to AT-174, "In
“N” Position, Vehicle
Moves" .ON vehicle1. PNP switchAT-102
2. A/T fluid level and stateAT- 4 9
3. A/T positionAT-206
4. Control valve with TCMAT-215
OFF vehicle5. Input clutchAT-276
6. Gear systemAT-246
7. Direct clutchAT-288
8. Reverse brakeAT-255
9. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT- 1 7 , "
Cross-sectional View" .)AT-255
10. Low coast brake (Parts behind drum support is impossi-
ble to perform inspection by disassembly. Refer to AT-17,
"Cross-sectional View" .)AT-255
68Engine does not start
in “N” or “P” position.
Refer to AT-173, "Engine Cannot Be
Started in “P” or “N”
Position" .ON vehicle1. Ignition switch and starterPG-4
,
SC-8
2. A/T positionAT-206
3. PNP switchAT-102
69Engine starts in posi-
tions other than “N” or
“P”.ON vehicle1. Ignition switch and starterPG-4
,
SC-8
2. A/T positionAT-206
3. PNP switchAT-102
70 Engine stall.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Engine speed signalAT- 11 3
3. Turbine revolution sensorAT-106
4. Torque converter clutch solenoid valveAT-125
5. CAN communication lineAT- 9 4
6. Control valve with TCMAT-215
OFF vehicle 7. Torque converterAT-255
71Engine stalls when
selector lever shifted
“N” → “D”, “R”.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Engine speed signalAT- 11 3
3. Turbine revolution sensorAT-106
4. Torque converter clutch solenoid valveAT-125
5. CAN communication lineAT- 9 4
6. Control valve with TCMAT-215
OFF vehicle 7. Torque converterAT-255
No. Items Symptom Condition Diagnostic ItemReference
page