AT-60
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
4
Shift
ShockShock is too large
when changing D3 →
D
4 or M3 → M4 .ON vehicle1. Accelerator pedal position sensorAT- 1 3 1
2. A/T positionAT- 2 0 6
3. Input clutch solenoid valveAT- 1 4 5
4. CAN communication lineAT- 9 4
5. Engine speed signalAT- 11 3
6. Turbine revolution sensorAT- 1 0 6
7. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 9
8. A/T fluid level and stateAT- 4 9
9. Control valve with TCMAT- 2 1 5
OFF vehicle 10. Input clutchAT- 2 7 6
5Shock is too large
when changing D4 →
D
5 or M4 → M5 .ON vehicle1. Accelerator pedal position sensorAT- 1 3 1
2. A/T positionAT- 2 0 6
3. Front brake solenoid valveAT- 1 4 7
4. CAN communication lineAT- 9 4
5. Engine speed signalAT- 11 3
6. Turbine revolution sensorAT- 1 0 6
7. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 9
8. A/T fluid level and stateAT- 4 9
9. Control valve with TCMAT- 2 1 5
OFF vehicle10. Front brake (brake band)AT- 2 5 511. Input clutchAT- 2 7 6
6Shock is too large for
downshift when accel-
erator pedal is
pressed.ON vehicle1. Accelerator pedal position sensorAT- 1 3 1
2. A/T positionAT- 2 0 6
3. CAN communication lineAT- 9 4
4. Engine speed signalAT- 11 3
5. Turbine revolution sensorAT- 1 0 6
6. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 9
7. A/T fluid level and stateAT- 4 9
8. Control valve with TCMAT- 2 1 5
OFF vehicle9. Front brake (brake band)AT- 2 5 510. Input clutchAT- 2 7 6
11. High and low reverse clutchAT- 2 8 6
12. Direct clutchAT- 2 8 8
No. Items Symptom Condition Diagnostic ItemReference
page
TROUBLE DIAGNOSIS
AT-61
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 November2007 350Z
7
Shift
ShockShock is too large for
upshift when acceler-
ator pedal is released.ON vehicle1. Accelerator pedal position sensorAT-131
2. A/T positionAT-206
3. Engine speed signalAT- 11 3
4. CAN communication lineAT- 9 4
5. Turbine revolution sensorAT-106
6. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-108,
AT-139
7. A/T fluid level and stateAT- 4 9
8. Control valve with TCMAT-215
OFF vehicle9. Front brake (brake band)AT-25510. Input clutchAT-276
11. High and low reverse clutchAT-286
12. Direct clutchAT-288
8Shock is too large for
lock-up.ON vehicle1. Accelerator pedal position sensorAT-131
2. A/T positionAT-206
3. Engine speed signalAT- 11 3
4. CAN communication lineAT- 9 4
5. Turbine revolution sensorAT-106
6. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-108,
AT-139
7. Torque converter clutch solenoid valveAT-125
8. A/T fluid level and stateAT- 4 9
9. Control valve with TCMAT-215
OFF vehicle 10. Torque converterAT-255
9Shock is too large
during engine brake.ON vehicle1. Accelerator pedal position sensorAT-131
2. A/T positionAT-206
3. CAN communication lineAT- 9 4
4. A/T fluid level and stateAT- 4 9
5. Control valve with TCMAT-215
OFF vehicle6. Front brake (brake band)AT-2557. Input clutchAT-276
8. High and low reverse clutchAT-286
9. Direct clutchAT-288
No. Items Symptom Condition Diagnostic ItemReference
page
AT-62
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
10
No Up
ShiftGear does not change
from D
1 → D2 or from
M
1 → M2 .
Refer to AT-183, "
A/T
Does Not Shift: D1 →
D2" .ON vehicle1. A/T fluid level and stateAT- 4 9
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 9
3. Direct clutch solenoid valveAT- 1 4 9
4. Line pressure testAT- 5 0
5. CAN communication lineAT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle 7. Direct clutchAT- 2 8 8
11Gear does not change
from D
2 → D3 or from
M
2 → M3 .
Refer to AT-185, "
A/T
Does Not Shift: D2 →
D3" .ON vehicle1. A/T fluid level and stateAT- 4 9
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 9
3. High and low reverse clutch solenoid valveAT- 1 5 1
4. Line pressure testAT- 5 0
5. CAN communication lineAT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle 7. High and low reverse clutchAT- 2 8 6
12Gear does not change
from D
3 → D4 or from
M
3 → M4 .
Refer to AT-187, "
A/T
Does Not Shift: D3 →
D4" .ON vehicle1. A/T fluid level and stateAT- 4 9
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 9
3. Input clutch solenoid valveAT- 1 4 5
4. Front brake solenoid valveAT- 1 4 7
5. Line pressure testAT- 5 0
6. CAN communication lineAT- 9 4
7. Control valve with TCMAT- 2 1 5
OFF vehicle 8. Input clutchAT- 2 7 6
13Gear does not change
from D
4 → D5 or from
M
4 → M5 .
Refer to AT-189, "
A/T
Does Not Shift: D4 →
D5" .ON vehicle1. A/T fluid level and stateAT- 4 9
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 9
3. Front brake solenoid valveAT- 1 4 7
4. Direct clutch solenoid valveAT- 1 4 9
5. Turbine revolution sensorAT- 1 0 6
6. Line pressure testAT- 5 0
7. CAN communication lineAT- 9 4
8. Control valve with TCMAT- 2 1 5
OFF vehicle9. Front brake (brake band)AT- 2 5 510. Input clutchAT- 2 7 6
No. Items Symptom Condition Diagnostic ItemReference
page
AT-66
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
23
Slips/Will
Not
EngageVehicle cannot be
started from D
1 .
Refer to AT-181,
"Vehicle Cannot Be
Started from D1" .ON vehicle1. A/T fluid level and stateAT- 4 9
2. Accelerator pedal position sensorAT- 1 3 1
3. Line pressure testAT- 5 0
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
24Does not lock-up.
Refer to AT-191, "A/T
Does Not 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
25Does not hold lock-up
condition.
Refer to AT-193, "A/T
Does Not Hold Lock-
up Condition" .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-67
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 November2007 350Z26
Slips/Will
Not
EngageLock-up is not
released.
Refer to AT-194,
"Lock-up Is Not
Released" .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-106
5. Torque converter clutch solenoid valveAT-125
6. CAN communication lineAT- 9 4
7. Control valve with TCMAT-215
OFF vehicle8. Torque converterAT-2559. Oil pump assemblyAT-271
27No shock at all or the
clutch slips when
vehicle changes
speed D
1 → D2 or
M
1 → M2 . ON vehicle1. A/T fluid level and stateAT- 4 9
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-108,
AT-139
3. Direct clutch solenoid valveAT-149
4. CAN communication lineAT- 9 4
5. Line pressure testAT- 5 0
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
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-77
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 November2007 350Z49
Does Not
ChangeDoes not change M
3
→ M
2 .
Refer to AT-199, "
A/T
Does Not Shift: 3rd
Gear → 2nd Gear" .ON vehicle1. PNP switchAT-102
2. A/T fluid level and stateAT- 4 9
3. A/T positionAT-206
4. Manual mode switchAT-157
5. CAN communication lineAT- 9 4
6. Control valve with TCMAT-215
OFF vehicle7. Front brake (brake band)AT-2558. Input clutchAT-276
9. High and low reverse clutchAT-286
50Does not change M
2
→ M
1 .
Refer to AT-201, "
A/T
Does Not Shift: 2nd
Gear → 1st Gear" .ON vehicle1. PNP switchAT-102
2. A/T fluid level and stateAT- 4 9
3. A/T positionAT-206
4. Manual mode switchAT-157
5. CAN communication lineAT- 9 4
6. Control valve with TCMAT-215
OFF vehicle7. Input clutchAT-2768. High and low reverse clutchAT-286
9. Direct clutchAT-288
51Cannot be changed to
manual mode.
Refer to AT-196,
"Cannot Be Changed
to Manual Mode" .ON vehicle1. Manual mode switchAT-157
2. Turbine revolution sensorAT-106
3. CAN communication lineAT- 9 4
52
OthersShift point is high in
“D” position.ON vehicle1. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-108
,
AT-139
2. Accelerator pedal position sensorAT-131
3. CAN communication lineAT- 9 4
4. A/T fluid temperature sensorAT-134
5. Control valve with TCMAT-215
53Shift point is low in “D”
position.ON vehicle1. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-108
,
AT-139
2. Accelerator pedal position sensorAT-131
3. CAN communication lineAT- 9 4
4. Control valve with TCMAT-215
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