2003 NISSAN TEANA can

AT-64
TROUBLE DIAGNOSIS

*1: QR engine
*2: VQ engine
TCM Terminals and Reference ValueBCS0010C
TCM CONNECTOR TERMINAL LAYOUT
TCM INSPECTION TABLE
Data are reference value and are measured between each terminal and ground.
OthersATF shoots out
during operation.
White smoke
emitted from
exhaust pipe dur-
ing operation.ON vehicle 1. A/T fluid levelAT- 1 4
OFF vehicle2. Reverse clutchAT-296
3. High clutchAT-301
4. Brake bandAT-329
5. Forward clutchAT-307
6. Overrun clutchAT-307
7. Low & reverse brakeAT-315
Offensive smell at
fluid charging
pipe.ON vehicle 1. A/T fluid levelAT- 1 4
OFF vehicle2. Torque converterAT-255
3. Oil pumpAT-275
4. Reverse clutchAT-296
5. High clutchAT-301
6. Brake bandAT-329
7. Forward clutchAT-307
8. Overrun clutchAT-307
9. Low & reverse brakeAT-315
Items Symptom Condition Diagnostic item Reference page
SCIA0495E
Terminal Wire color Item ConditionJudgement stan-
dard (Approx.)
1 G/RLine pressure sole-
noid valveWhen releasing accelerator pedal
after warming up engine.1.5 - 3.0 V
When depressing accelerator pedal
fully after warming up engine.0V
2W/BLine pressure sole-
noid valve (with drop-
ping resistor)When releasing accelerator pedal
after warming up engine.4 - 14 V
When depressing accelerator pedal
fully after warming up engine.0V
3 G/BTorque converter
clutch solenoid valveWhen A/T performs lock-up. 8 - 15 V
When A/T does not perform lock-up. 0 V
5 L CAN-H — —
6P CAN-L — —

TROUBLE DIAGNOSIS
AT-67
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CONSULT-II Function (A/T) BCS0010D
CONSULT-II can display each diagnostic item using the diagnostic test models shown following.
FUNCTION
NOTICE:
1. The CONSULT-II electrically displays shift timing and lock-up timing (that is, operation timing of each sole-
noid).
Check for time difference between actual shift timing and the CONSULT-II 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-II 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-II indicates the point where shifts are completed.
3. Shift solenoid valve “A” or “B” is displayed on CONSULT-II at the start of shifting. Gear position is dis-
played upon completion of shifting (which is computed by TCM).
CONSULT-II REFERENCE VALUE
Diagnostic test mode Function Reference page
Work supportThis mode enables a technician to adjust some devices faster and more accurately by
following the indications on CONSULT-II.—
Self-diagnostic results Self-diagnostic results can be read and erased quickly.AT- 6 9
Data monitor Input/Output data in the ECM can be read.AT- 7 0
CAN diagnostic support
monitorThe results of transmit/receive diagnosis of CAN communication can be read.AT- 7 2
Function testPerformed by CONSULT-II 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.AT- 7 2
TCM part number TCM part number can be read. —
Item name Condition Display value (Approx.)
VHCL/S SE-A/T
During drivingApproximately matches the speedometer
reading.
VHCL/S SE-MTR
THROTTLE POSIReleased accelerator pedal. 0.0/8
Fully depressed accelerator pedal. 8.0/8
FLUID TEMP SE When ATF temperature is 20°C (68°F). 1.5 V
When ATF temperature is 80°C (176°F). 0.5 V
BATTERY VOLT When turning ignition switch to ON. Battery voltage
ENGINE SPEED Engine runningApproximately matches the tachometer
reading.
TURBINE REV During driving (lock-up ON) Approximately matches the engine speed.
OVERDRIVE SWWhen setting selector lever to “3” and “2” posi-
tions.ON
When setting selector lever to other positions. OFF
PN POSI SWWhen setting selector lever to “N” or “P” posi-
tion.ON
When setting selector lever to other positions. OFF
R POSITION SWWhen setting selector lever to “R” position. ON
When setting selector lever to other positions. OFF

TROUBLE DIAGNOSIS
AT-69
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CONSULT-II SETTING PROCEDURE
Refer to GI-34, "CONSULT-II Start Procedure" .
SELF-DIAGNOSTIC RESULT MODE
After performing AT- 7 6 , "Diagnostic Procedure Without CONSULT-II" , place check marks for results on the
AT- 3 8 , "
DIAGNOSTIC WORKSHEET" . Reference pages are provided following the items.
Operation Procedure
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE”
screen.
Display shows malfunction experienced since the last erasing
operation.
Display Items List
BCIA0031E
Items (CONSULT-II screen terms) Malfunction is detected when... Reference page
CAN COMM CIRCUIT

When TCM is not transmitting or receiving CAN communication signal
for 2 second or more.AT- 1 3 3
VHCL SPEED SEN-A/T
TCM does not receive the proper voltage signal from the sensor.AT- 8 0
VHCL SPEED SEN-MTR
TCM does not receive the proper voltage signal from the sensor.AT- 8 6
TURBINE SENSOR
TCM does not receive proper voltage signal from sensorAT- 1 2 0
SHIFT SOLENOID/V A
TCM detects an improper voltage drop when it tries to operate the sole-
noid valve.AT- 9 0
SHIFT SOLENOID/V B
TCM detects an improper voltage drop when it tries to operate the sole-
noid valve.AT- 9 5
OVERRUN CLUTCH S/V
TCM detects an improper voltage drop when it tries to operate the sole-
noid valve.AT- 1 0 0
T/C CLUTCH SOL/V
TCM detects an improper voltage drop when it tries to operate the sole-
noid valve.AT- 1 0 5
BATT/FLUID TEMP SEN
TCM receives an excessively low or high voltage from the sensor.AT- 11 0
ENGINE SPEED SIG
TCM does not receive the proper voltage signal from the ECM.AT- 11 6
A/T 1ST GR FNCTN
A/T cannot be shifted to the 1st gear position even if electrical circuit is
good.AT- 1 3 6
A/T 2ND GR FNCTN
A/T cannot be shifted to the 2nd gear position even if electrical circuit is
good.AT- 1 4 0
A/T 3RD GR FNCTN
A/T cannot be shifted to the 3rd gear position even if electrical circuit is
good.AT- 1 4 3
A/T 4TH GR FNCTN
A/T cannot be shifted to the 4th gear position even if electrical circuit is
good.AT- 1 4 6
A/T TCC S/V FNCTN
A/T cannot perform lock-up even if electrical circuit is good.AT- 1 5 1
LINE PRESSURE S/V
TCM detects an improper voltage drop when it tries to operate the sole-
noid valve.AT- 1 2 6
CONTROL UNIT (RAM)
TCM memory (RAM) is malfunctioningAT- 1 5 6
CONTROL UNIT (ROM)
TCM memory (ROM) is malfunctioningAT- 1 5 7
No failure
(NO SELF DIAGNOSTIC FAILURE
INDICATED FURTHER TESTING
MAY BE REQUIRED)

No failure has been detected. —

TROUBLE DIAGNOSIS
AT-71
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OVERDRIVE SW (ON/OFF) X —3rd position switch (Signal input with
CAN communication.)
PN POSI SW (ON/OFF) X —
R POSITION SW (ON/OFF) X —
D POSITION SW (ON/OFF) X —
2 POSITION SW (ON/OFF) X —
1 POSITION SW (ON/OFF) X —
ASCD-CRUISE (ON/OFF) X —
Signal input with CAN communication.
ASCD-OD CUT (ON/OFF) X —
KICKDOWN SW (ON/OFF) X —
Not mounted but displayed.
POWERSHIFT SW (ON/OFF) X —
CLOSED THL/SW (ON/OFF) X —
Signal input with CAN communication.
W/O THRL/P-SW (ON/OFF) X —
*SHIFT S/V A (ON/OFF) — —
Displays status of check signal (reinput
signal) for TCM control signal output.
Remains unchanged when solenoid
valves are open or shorted. *SHIFT S/V B (ON/OFF) — —
*OVERRUN/C S/V (ON/OFF) — —
HOLD SW (ON/OFF) X — Not mounted but displayed.
BRAKE SW (ON/OFF) X —Stop lamp switch (Signal input with CAN
communication.)
GEAR — XGear position recognized by the TCM
updated after gear-shifting
SLCT LVR POSI — XSelector lever position is recognized by
the TCM.
For fail-safe operation, the specific value
used for control is displayed.
VEHICLE SPEED (km/h) — X Vehicle speed recognized by the TCM.
THROTTLE POSI (0.0/8) — XDegree of opening for accelerator recog-
nized by the TCM
For fail-safe operation, the specific value
used for control is displayed.
LINE PRES DTY (%) — X
TCC S/V DUTY (%) — X
SHIFT S/V A (ON/OFF) — X
SHIFT S/V B (ON/OFF) — X
OVERRUN/C S/V (ON/OFF) — X
SELF-D DP LMP (ON/OFF) — X
TC SLIP RATIO (0.000) — —
TC SLIP SPEED (rpm) — —Difference between engine speed and
torque converter input shaft speed
Voltage (V) — —Displays the value measured by the volt-
age probe. Monitor item (Unit)SELECT MONITOR ITEM
Remarks
TCM INPUT
SIGNALSMAIN SIG-
NALSSELEC-
TION FROM
MENU

AT-72
TROUBLE DIAGNOSIS

CAN DIAGNOSTIC SUPPORT MONITOR MODE
Operation Procedure
1. Touch “CAN DAIG SUPPORT MNTR” on “SELECT DIAG
MODE” screen. Refer to LAN-44, "
CAN Diagnostic Support
Monitor" .
DTC WORK SUPPORT MODE
Operation Procedure
1. Touch “DTC WORK SUPPORT” on “SELECT DIAG MODE”
screen.
2. Touch select item menu (1ST, 2ND, etc.).
Frequency (Hz) — —
The value measured by the pulse probe
is displayed. DUTY-HI (high) (%) — —
DUTY-LOW (low) (%) — —
PLS WIDTH-HI (ms) — —
PLS WIDTH-LOW (ms) — —Monitor item (Unit)SELECT MONITOR ITEM
Remarks
TCM INPUT
SIGNALSMAIN SIG-
NALSSELEC-
TION FROM
MENU
BCIA0031E
BCIA0031E
SAT018K

TROUBLE DIAGNOSIS
AT-75
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Display Items List
DTC work support item Description Check item
1ST GR FNCTN P0731Following items for “A/T 1st gear function (P0731)” can be con-
firmed.

Self-diagnosis status (whether the diagnosis is being performed
or not)

Self-diagnostic results (OK or NG)

Shift solenoid valve A

Shift solenoid valve B

Each clutch

Hydraulic control circuit
2ND GR FNCTN P0732Following items for “A/T 2nd gear function (P0732)” can be con-
firmed.

Self-diagnosis status (whether the diagnosis is being performed
or not)

Self-diagnostic results (OK or NG)

Shift solenoid valve B

Each clutch

Hydraulic control circuit
3RD GR FNCTN P0733Following items for “A/T 3rd gear function (P0733)” can be con-
firmed.

Self-diagnosis status (whether the diagnosis is being performed
or not)

Self-diagnostic results (OK or NG)

Shift solenoid valve A

Each clutch

Hydraulic control circuit
4TH GR FNCTN P0734Following items for “A/T 4th gear function (P0734)” can be con-
firmed.

Self-diagnosis status (whether the diagnosis is being performed
or not)

Self-diagnostic results (OK or NG)

Shift solenoid valve A

Shift solenoid valve B

Overrun clutch solenoid valve

Line pressure solenoid valve

Each clutch

Hydraulic control circuit
TCC S/V FNCTN P0744Following items for “A/T TCC S/V function (lock-up) (P0744)” can
be confirmed.

Self-diagnosis status (whether the diagnosis is being performed
or not)

Self-diagnostic results (OK or NG)

Torque converter clutch sole-
noid valve

Each clutch

Hydraulic control circuit

TROUBLE DIAGNOSIS
AT-77
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Judgement of Self-Diagnosis Code
A/T CHECK indicator lamp:
All judgement flickers are the same.
All circuits that can be confirmed by self-diagnosis are OK.1st judgement flicker is longer than others.
Revolution sensor circuit is short-circuited or disconnected.

Go to AT-80, "
VEHICLE SPEED SENSOR·A/T (REVOLU-
TION SENSOR)" .
2nd judgement flicker is longer than others.
Vehicle speed sensor circuit is short-circuited or disconnected.

Go to AT- 8 6 , "
VEHICLE SPEED SENSOR MTR" .4th judgement flicker is longer than others.
Shift solenoid valve A circuit is short-circuited or disconnected.

Go to AT-90, "SHIFT SOLENOID VALVE A" .
5th judgement flicker is longer than others.
Shift solenoid valve B circuit is short-circuited or disconnected.

Go to AT- 9 5 , "
SHIFT SOLENOID VALVE B" .6th judgement flicker is longer than others.
Overrun clutch solenoid valve circuit is short-circuited or discon-
nected.

Go to AT-100, "
OVERRUN CLUTCH SOLENOID VALVE" .
SCIA3230ESCIA3231E
SCIA3232ESCIA3234E
SCIA3235ESCIA3236E

TROUBLE DIAGNOSIS
AT-79
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t1 = 2.5 seconds t2 = 2.0 seconds t3 = 1.0 second
HOW TO ERASE SELF-DIAGNOSTIC RESULTS (WITHOUT CONSULT-II)
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait for at least
5 seconds and then turn it ON again.
2. Perform AT- 7 6 , "
Diagnostic Procedure" .
3. Turn ignition switch OFF. (The self-diagnostic results will be erased.)
11th judgement flicker is longer than others.
Line pressure solenoid valve circuit is short-circuited or discon-
nected.

Go to AT-126, "
LINE PRESSURE SOLENOID VALVE" .12th judgement flicker is longer than others.
CAN communication line is damaged.

Go to AT-133, "
CAN COMMUNICATION LINE" .
Lamp turns off.
PNP switch, 3rd position switch, stop lamp switch, closed throttle
position signal or wide open throttle position signal circuit is dis-
connected or TCM is damaged.
(Because 3rd position switch signal, stop lamp switch signal,
closed throttle position signal and wide open throttle position sig-
nal are input via CAN communication line malfunction may con-
tinue after self-diagnosis.)

Go to AT-210, "
TCM Self-diagnosis Does Not Activate" . A/T CHECK indicator lamp:
SCIA3241ESCIA3242E
SCIA3243E