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
AT-82
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
72 OthersEngine speed does
not return to idle.
Refer to AT-195,
"Engine Speed Does
Not Return to Idle" .ON vehicle1. A/T fluid level and stateAT- 4 9
2. Direct clutch solenoid valveAT- 1 4 9
3. Front brake solenoid valveAT- 1 4 7
4. Accelerator pedal position sensorAT- 1 3 1
5. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 9
6. CAN communication lineAT- 9 4
7. Control valve with TCMAT- 2 1 5
OFF vehicle8. Front brake (brake band)AT- 2 5 59. Direct clutchAT- 2 8 8
No. Items Symptom Condition Diagnostic ItemReference
page
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
TROUBLE DIAGNOSIS
AT-85
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 November2007 350Z
I/C SOLENOIDInput clutch disengaged. Refer to AT- 1 9 . 0.6 – 0.8 A
Input clutch engaged. Refer to AT- 1 9
. 0 – 0.05 A
FR/B SOLENOIDFront brake engaged. Refer to AT- 1 9
. 0.6 – 0.8 A
Front brake disengaged. Refer to AT- 1 9
. 0 – 0.05 A
D/C SOLENOIDDirect clutch disengaged. Refer to AT- 1 9
. 0.6 – 0.8 A
Direct clutch engaged. Refer to AT- 1 9
. 0 – 0.05 A
HLR/C SOLHigh and low reverse clutch disengaged. Refer to AT- 1 9
. 0.6 – 0.8 A
High and low reverse clutch engaged. Refer to AT- 1 9
. 0 – 0.05 A
ON OFF SOLLow coast brake engaged. Refer to AT- 1 9
.ON
Low coast brake disengaged. Refer to AT- 1 9
.OFF
MANU MODE SWManual shift gate position (neutral) ON
Other than the above OFF
NON M-MODE SWManual shift gate position OFF
Other than the above ON
UP SW LEVERSelector lever: + side ON
Other than the above OFF
DOWN SW LEVERSelector lever: - side ON
Other than the above OFF
STARTER RELAYSelector lever in “N” and “P” positions. ON
Selector lever in other positions. OFF
ACCELE POSIReleased accelerator pedal. 0.0/8
Fully depressed accelerator pedal. 8.0/8
CLSD THL POSReleased accelerator pedal. ON
Fully depressed accelerator pedal. OFF
W/O THL POSFully depressed accelerator pedal. ON
Released accelerator pedal. OFF
BRAKE SWDepressed brake pedal. ON
Released brake pedal. OFF
GEAR During driving 1, 2, 3, 4, 5 Item name Condition Display value (Approx.)
AT-88
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
DATA MONITOR MODE
Display Items List
X: Standard, —: Not applicable, : Option
Monitored item (Unit)Monitor Item Selection
Remarks
ECU INPUT
SIGNALSMAIN SIG-
NALSSELEC-
TION FROM
MENU
VHCL/S SE-A/T (km/h) X X Revolution sensor
VHCL/S SE-MTR (km/h) X —
ACCELE POSI (0.0/8) X — Accelerator pedal position signal
THROTTLE POSI (0.0/8) X XDegree of opening for accelerator recognized by
the TCM.
For fail-safe operation, the specific value used for
control is displayed.
CLSD THL POS (ON/OFF) X —
Signal input with CAN communications.
W/O THL POS (ON/OFF) X —
BRAKE SW (ON/OFF) X — Stop lamp switch
GEAR — XGear position recognized by the TCM updated
after gear-shifting.
ENGINE SPEED (rpm) X X
TURBINE REV (rpm) X X
OUTPUT REV (rpm) X X
GEAR RATIO — X
TC SLIP SPEED (rpm) — XDifference between engine speed and torque
converter input shaft speed.
F SUN GR REV (rpm) — —
F CARR GR REV (rpm) — —
ATF TEMP SE 1 (V) X —
ATF TEMP SE 2 (V) X —
ATF TEMP 1 (°C) — X
ATF TEMP 2 (°C) — X
BATTERY VOLT (V) X —
ATF PRES SW 1 (ON/OFF) X X (for FR/B solenoid)
ATF PRES SW 2 (ON/OFF) X X (for LC/B solenoid)
ATF PRES SW 3 (ON/OFF) X X (for I/C solenoid)
ATF PRES SW 5 (ON/OFF) X X (for D/C solenoid)
ATF PRES SW 6 (ON/OFF) X X (for HLR/C solenoid)
PNP SW 1 (ON/OFF) X —
PNP SW 2 (ON/OFF) X —
PNP SW 3 (ON/OFF) X —
PNP SW 4 (ON/OFF) X —
1 POSITION SW (ON/OFF) X —
TROUBLE DIAGNOSIS
AT-91
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 November2007 350Z
DTC WORK SUPPORT MODE
Display Items List
Frequency (Hz) — —
The value measured by the pulse probe is dis-
played. DUTY-HI (high) (%) — —
DUTY-LOW (low) (%) — —
PLS WIDTH-HI (ms) — —
PLS WIDTH-LOW (ms) — —Monitored item (Unit)Monitor Item Selection
Remarks
ECU INPUT
SIGNALSMAIN SIG-
NALSSELEC-
TION FROM
MENU
DTC work support item Description Check item
1ST GR FUNCTN P0731Following items for “1st gear function” can be confirmed.
Self-diagnosis status (whether the diagnosis is being performed or not)
Self-diagnostic results (OK or NG)
Input clutch solenoid
valve
Front brake solenoid
valve
Direct clutch solenoid
valve
High and low reverse
clutch solenoid valve
Each clutch
Hydraulic control circuit 2ND GR FUNCTN P0732Following items for “2nd gear function” can be confirmed.
Self-diagnosis status (whether the diagnosis is being performed or not)
Self-diagnostic results (OK or NG)
3RD GR FUNCTN P0733Following items for “3rd gear function” can be confirmed.
Self-diagnosis status (whether the diagnosis is being performed or not)
Self-diagnostic results (OK or NG)
4TH GR FUNCTN P0734Following items for “4th gear function” can be confirmed.
Self-diagnosis status (whether the diagnosis is being performed or not)
Self-diagnostic results (OK or NG)
5TH GR FUNCTN P0735Following items for “5th gear function” can be confirmed.
Self-diagnosis status (whether the diagnosis is being performed or not)
Self-diagnostic results (OK or NG)
AT-92
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
Diagnostic Procedure Without CONSULT-IIINCS0002F
OBD-II SELF-DIAGNOSTIC PROCEDURE (WITH GST)
Refer to EC-125, "Generic Scan Tool (GST) Function" .
OBD-II SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)
Refer to EC-62, "Malfunction Indicator Lamp (MIL)" .
TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)
Description
When the ignition switch is turned ON, the indicator lamp lights up 2 seconds. As a method for locating the
suspect circuit, when the self-diagnostics start signal is input, the memory for the malfunction location is output
and A/T CHECK indicator lamp flashes to display the corresponding DTC.
Diagnostic Procedure
1. CHECK A/T CHECK INDICATOR LAMP
1. Start the engine with selector lever in “P” position. Warm engine to normal operating temperature.
2. Turn ignition switch ON and OFF at least twice, then leave it in the OFF position.
3. Wait 10 seconds.
4. Turn ignition switch ON. (Do not start engine.)
Does A/T CHECK indicator lamp come on for about 2 seconds?
YES >> GO TO 2.
NO >> Go to AT- 1 7 2 , "
A/T Check Indicator Lamp Does Not Come On" .
2. JUDGMENT PROCEDURE
1. Turn ignition switch OFF.
2. Keep pressing shift lock release button.
3. Move selector lever from “P” to “D” position.
4. Release accelerator pedal. (Set the closed throttle position signal ON.)
5. Depress brake pedal. (Stop lamp switch signal ON.)
6. Turn ignition switch ON. (Do not start engine.)
7. Wait 3 seconds.
8. Move the selector lever to the manual shift gate side. (Manual mode switch ON.)
9. Release brake pedal. (Stop lamp switch signal OFF.)
10. Move the selector lever to “D” position. (Manual mode switch OFF.)
11. Depress brake pedal. (Stop lamp switch signal ON.)
12. Release brake pedal. (Stop lamp switch signal OFF.)
13. Depress accelerator pedal fully and release it.
>> GO TO 3.
3. CHECK SELF-DIAGNOSIS CODE
Check A/T CHECK indicator lamp. Refer to AT- 9 3 , "
Judgment Self-diagnosis Code" .
If the system does not go into self-diagnostics. Refer to AT- 1 0 2 , "
DTC P0705 PARK/NEUTRAL POSITION
SWITCH" , AT- 1 5 7 , "DTC P1815 MANUAL MODE SWITCH" , AT- 1 6 6 , "CLOSED THROTTLE POSITION AND
WIDE OPEN THROTTLE POSITION CIRCUIT" , AT- 1 6 7 , "BRAKE SIGNAL CIRCUIT" .
>>DIAGNOSIS END