Part number NISSAN 350Z 2007 Z33 Automatic Transmission Workshop Manual

TROUBLE DIAGNOSIS
AT-59
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 November2007 350Z
Symptom ChartNCS0002C

The diagnostics item numbers show the sequence for inspection. Inspect in order from item 1.

Overhaul and inspect inside the A/T only if A/T fluid condition is NG. Refer to AT- 4 9 , "A/T Fluid Con-
dition Check".
No. Items Symptom Condition Diagnostic ItemReference
page
1
Shift
ShockLarge shock. (“N” → “
D” position)
Refer to AT-175,
"Large Shock (“N” to
“D” Position)" .ON vehicle1. Engine idle speedEC-76
2. Engine speed signalAT- 11 3
3. Accelerator pedal position sensorAT-131
4. A/T positionAT-206
5. A/T fluid temperature sensorAT-134
6. Front brake solenoid valveAT-147
7. CAN communication lineAT- 9 4
8. A/T fluid level and stateAT- 4 9
9. Line pressure testAT- 5 0
10. Control valve with TCMAT-215
OFF vehicle11. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-sectional View" .)AT-255
2Shock is too large
when changing D1 →
D
2 or M1 → M2 .ON vehicle1. Accelerator pedal position sensorAT-131
2. A/T positionAT-206
3. Direct clutch solenoid valveAT-149
4. CAN communication lineAT- 9 4
5. Engine speed signalAT- 11 3
6. Turbine revolution sensorAT-106
7. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-108,
AT-139
8. A/T fluid level and stateAT- 4 9
9. Control valve with TCMAT-215
OFF vehicle 10. Direct clutchAT-288
3Shock is too large
when changing D2 →
D
3 or M2 → M3 .ON vehicle1. Accelerator pedal position sensorAT-131
2. A/T positionAT-206
3. High and low reverse clutch solenoid valveAT-151
4. CAN communication lineAT- 9 4
5. Engine speed signalAT- 11 3
6. Turbine revolution sensorAT-106
7. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-108,
AT-139
8. A/T fluid level and stateAT- 4 9
9. Control valve with TCMAT-215
OFF vehicle 10. High and low reverse clutchAT-286

AT-84
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
CONSULT-III Function (TRANSMISSION)NCS0002E
CONSULT-III can display each diagnostic item using the diagnostic test mode shown following.
FUNCTION
CONSULT-III REFERENCE VALUE
NOTICE:
1. The CONSULT-III electrically displays shift timing and lock-up timing (that is, operation timing of each
solenoid).
Check for time difference between actual shift timing and the CONSULT-III display. If the difference is
noticeable, mechanical parts (except solenoids, sensors, etc.) may be malfunctioning. Check mechanical
parts using applicable diagnostic procedures.
2. Shift schedule (which implies gear position) displayed on CONSULT-III and that indicated in Service Man-
ual may differ slightly. This occurs because of the following reasons:
–Actual shift schedule has more or less tolerance or allowance,
–Shift schedule indicated in Service Manual refers to the point where shifts start, and
–Gear position displayed on CONSULT-III indicates the point where shifts are completed.
3. Display of solenoid valves on CONSULT-III changes at the start of shifting, while gear position is dis-
played upon completion of shifting (which is computed by TCM).
Diagnostic test mode Function
Work supportThis mode enables a technician to adjust some devices faster and more accurately by following the
indications on CONSULT-III.
Self-diagnostic results Self-diagnostic results can be read and erased quickly.
Data monitor Input/Output data in the ECU can be read.
CAN diagnostic support monitor The results of transmit/receive diagnosis of CAN communication can be read.
Function testPerformed by CONSULT-III instead of a technician to determine whether each system is “OK” or
“NG”.
DTC work support Select the operating condition to confirm Diagnosis Trouble Codes.
ECU part number TCM part number can be read.
Item name Condition Display value (Approx.)
ATF TEMP SE 1
0°C (32° F) – 20°C (68°F) – 80°C (176°F)3.3 – 2.7 – 0.9 V
ATF TEMP SE 23.3 – 2.5 – 0.7 V
ATF TEMP 1 Ignition switch ONMeasured ATF temperature is dis-
played.
TCC SOLENOID Lock-up is active 0.4 – 0.6 A
SLCT LVR POSISelector lever in “N” and “P” positions. N/P
Selector lever in “R” position. R
Selector lever in “D” position. D
VHCL/S SE-A/T During drivingApproximately matches the speed-
ometer reading.
VEHICLE SPEED During drivingApproximately matches the speed-
ometer reading.
ENGINE SPEED Engine runningClosely matches the tachometer
reading.
LINE PRES SOL During driving 0.2 – 0.6 A
TURBINE REV During driving (lock-up ON)Approximately matches the engine
speed.
VHCL/S SE-MTR During drivingApproximately matches the speed-
ometer reading.
ATF PRES SW 2Low coast brake engaged. Refer to AT- 1 9
.ON
Low coast brake disengaged. Refer to AT- 1 9
.OFF

AT-244
TRANSMISSION ASSEMBLY
Revision: 2006 November2007 350Z
25. Remove engine mounting insulator (rear) with power tool. Refer to AT- 2 4 2 , "Removal and Installation" .
26. Remove bolts fixing A/T assembly to engine assembly with power tool.
27. Remove A/T assembly from vehicle with a transmission jack.

Secure torque converter to prevent it from dropping.

Secure A/T assembly to a transmission jack.
28. Remove air breather hose. Refer to AT- 2 4 1 , "
Removal and
Installation" .
INSPECTION
Installation and Inspection of Torque Converter

After inserting a torque converter to a A/T, be sure to check dis-
tance “A” to ensure it is within the reference value limit.
INSTALLATION
Install the removed parts in the reverse order of the removal, while paying attention to the following work.

When installing A/T assembly to the engine assembly, attach the
fixing bolts in accordance with the following standard.
–: Engine to transmission
–: Transmission to engine

Align the positions of tightening bolts for drive plate with those of
the torque converter, and temporarily tighten the bolts. Then
tighten the bolts with the specified torque.
CAUTION:

When turning crankshaft, turn it clockwise as viewed from
the front of the engine.

When tightening the tightening bolts for torque converter
after fixing crankshaft pulley bolts, be sure to confirm the
tightening torque of crankshaft pulley mounting bolts.
Refer to EM-53, "
TIMING CHAIN" .

After converter is installed to drive plate, rotate crankshaft several turns and check to be sure that
transmission rotates freely without binding.

Install crankshaft position sensor (POS). Refer to EM-26, "Removal and Installation" .
SCIA0499E
Distance “A”: 25.0 mm (0.98 in) or more
SCIA5694E
Bolt symbol A B
Number of bolts 8 4
Bolt length mm (in) 65 (2.56) 35 (1.38)
Tightening torque
N·m (kg-m, ft-lb)75 (7.7, 55) 46.6 (4.8, 34)
SCIA8152E
: 51 N·m (5.2 kg-m, 38 ft-lb)
SCIA1493E