NISSAN TEANA 2003 Service Manual

TROUBLE DIAGNOSIS
CVT-45
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CVT
CONSULT-II SETTING PROCEDURE
Refer to GI-34, "CONSULT-II Start Procedure" .
WORK SUPPORT MODE
Display Item List
Engine Brake Adjustment
1. Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.
2. Touch “ENGINE BRAKE ADJ.”.
3. Touch “START”.
RANGESelector lever in “N” or “P” position N·P
Selector lever in “R” position R
Selector lever in “D” position D
M GEAR POS During driving 1, 2, 3, 4, 5, 6 Item name Condition Display value (Approx.)
Item name Description
ENGINE BRAKE ADJ. The engine brake level setting can be canceled.
CONFORM CVTF DETERIORTN The CVT fluid deterioration level can be checked.
BCIA0031E
SCIA4287E
SCIA4288E

CVT-46
TROUBLE DIAGNOSIS

4. Set “ENGINE BRAKE LEVEL” by touching “UP” or “DOWN”.
5. Turn ignition switch OFF, wait at least 5 seconds and then turn
ignition switch ON.
6. Engine brake level set is completed.
CAUTION:
Mode of “+1” “0” “-1” “-2” “OFF” can be selected by press-
ing the “UP” “DOWN” on CONSULT-II screen. However, do not select mode other than “0” and
“OFF”. If the “+1” or “-1” or “-2” is selected, that might cause the irregular driveability.
Check CVT Fluid Deterioration Date
1. Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.
2. Touch “CONFORM CVTF DETERIORTN”.
3. Check “CVTF DETERIORATION DATE”“ENGINE BRAKE LEVEL”
0: Initial set value (Engine brake level control is
activated)
OFF: Engine brake level control is deactivated.
SAT934J
BCIA0031E
SCIA4287E
“CVTF DETERIORATION DATE”
More than 210000:
It is necessary to change CVT fluid.
Less than 210000:
It is not necessary to change CVT fluid.
SCIA4289E

TROUBLE DIAGNOSIS
CVT-47
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CVT

CAUTION:
Touch “CLEAR” after changing CVT fluid, and then erase
“CVTF DETERIORATION DATE”.
SELF-DIAGNOSTIC RESULT MODE
After performing self-diagnosis, place check marks for results on the CVT-27, "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
X: Applicable —: Not applicable
SCIA4290E
BCIA0031E
Items
(CONSULT-II screen terms)Malfunction is detected when...TCM self-
diagnosisReference
page
DTC
CAN COMM CIRCUITWhen a TCM is not transmitting or receiving CAN communication
signal for 2 seconds or moreU1000CVT-53
STARTER RELAY/CIRCIf this signal is ON other than in “P” or “N” position, this is judged to
be a malfunction
(And if it is OFF in “P” or “N” position, this is judged to be a malfunc-
tion too)P0615CVT-56
BRAKE SW/CIRC When the brake switch does not switch to ON or OFF P0703CVT-60
PNP SW/CIRC
PNP switch 1-4 signals input with impossible pattern

PNP switch 3 monitor terminal open or short circuitP0705CVT-62
ATF TEMP SEN/CIRCDuring running, the CVT fluid temperature sensor signal voltage is
excessively high or lowP0710CVT-69
INPUT SPD SEN/CIRC

Input speed sensor (primary speed sensor) signal is not input due
to an open circuit

An unexpected signal is input when vehicle is being drivenP0715CVT-74
VEH SPD SEN/CIR AT

Signal from vehicle speed sensor CVT [Output speed sensor
(Secondary speed sensor)] not input due to open or short circuit

Unexpected signal input during runningP0720CVT-79
ENGINE SPEED SIG

TCM does not receive the CAN communication signal from the
ECM

Engine speed is too low while drivingP0725CVT-85
BELT DAMG Unexpected gear ratio detected P0730CVT-87
TCC SOLENOID/CIRC Normal voltage not applied to solenoid due to open or short circuit P0740CVT-89

CVT-48
TROUBLE DIAGNOSIS

A/T TCC S/V FNCTN

There is a big difference engine speed and primary speed when
TCM lock-up signal is on

CVT cannot perform lock-up even if electrical circuit is good

TCM detects as irregular by comparing difference value with slip
rotationP0744CVT-94
L/PRESS SOL/CIRC

Normal voltage not applied to solenoid due to open or short cir-
cuit

TCM detects as irregular by comparing target value with monitor
valueP0745CVT-97
PRS CNT SOL/A FCTNUnexpected gear ratio was detected in the LOW side due to exces-
sively low line pressureP0746CVT-102
PRS CNT SOL/B FCTNSecondary pressure is too high or too low compared with the com-
manded value while drivingP0776CVT-105
PRS CNT SOL/B CIRC

Normal voltage not applied to solenoid due to cut line, short, or
the like

TCM detects as irregular by comparing target value with monitor
valueP0778CVT-108
MANUAL MODE SWITCHWhen an impossible pattern of switch signals is detected, a mal-
function is detectedP0826CVT-113
TR PRS SENS/A CIRCSignal voltage of the transmission fluid pressure sensor A (second-
ary pressure sensor) is too high or too low while drivingP0840CVT-118
PRESS SEN/FNCTNCorrelation between the values of the transmission fluid pressure
sensor A (secondary pressure sensor) and the transmission fluid
pressure sensor B (primary pressure sensor) is out of specificationP0841CVT-123
TR PRS SENS/B CIRCSignal voltage of the transmission fluid pressure sensor B (primary
pressure sensor) is too high or too low while drivingP0845CVT-126
SEC/PRESS DOWNSecondary fluid pressure is too low compared with the commanded
value while drivingP0868CVT-131
TCM-POWER SUPPLY

When the power supply to the TCM is cut OFF, for example
because the battery is removed, and the self-diagnosis memory
function stops

This is not a malfunction message (Whenever shutting OFF a
power supply to the TCM, this message appears on the screen)P1701CVT-134
TP SEN/CIRC A/TTCM does not receive the proper accelerator pedal position signals
(input by CAN communication) from ECMP1705CVT-139
ESTM VEH SPD SIG

CAN communication with the ABS actuator and the electric unit
(control unit) is malfunctioning

There is a great difference between the vehicle speed signal from
the ABS actuator and the electric unit (control unit), and the vehi-
cle speed sensor signalP1722CVT-141
CVT SPD SEN/FNCTNA rotation sensor error is detected because the gear does not
change in accordance with the position of the stepping motor
CAUTION:
One of the “P0720 VEH SPD SEN/CIR AT”, the “P0715 INPUT
SPD SEN/CIRC” or the “P0725 ENGINE SPEED SIG” is dis-
played with the DTC at the same timeP1723CVT-143
ELEC TH CONTROL The electronically controlled throttle for ECM is malfunctioning P1726CVT-145
LU-SLCT SOL/CIRC

Normal voltage not applied to solenoid due to cut line, short, or
the like

TCM detects as irregular by comparing target value with monitor
valueP1740CVT-147
L/PRESS CONTROL TCM detects the unexpected line pressure P1745CVT-152
Items
(CONSULT-II screen terms)Malfunction is detected when...TCM self-
diagnosisReference
page
DTC

TROUBLE DIAGNOSIS
CVT-49
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CVT

How to Erase Self-diagnostic Results
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE”
screen.
2. Touch “ERASE”. (The self-diagnostic results will be erased.)
STEP MOTR CIRCEach coil of the step motor is not energized properly due to an open
or a shortP1777CVT-153
STEP MOTR/FNCTNThere is a great difference between the number of steps for the
stepping motor and for the actual gear ratioP1778CVT-157
NO DTC IS DETECTED:
FURTHER TESTING MAY BE
REQUIREDNo NG item has been detected X — Items
(CONSULT-II screen terms)Malfunction is detected when...TCM self-
diagnosisReference
page
DTC
BCIA0031E
SCIA4614E

CVT-50
TROUBLE DIAGNOSIS

DATA MONITOR MODE
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
NOTE:
When malfunction is detected, CONSULT-II performs
“REAL-TIME DIAGNOSIS”. Also, any malfunction detected
while in this mode will be displayed at real time.
Display Items List
X: Standard, —: Not applicable, : Option
BCIA0031E
Monitored item (Unit)Monitor item selection
Remarks ECU
INPUT
SIGNALSMAIN SIG-
NALSSELEC-
TION
FROM
MENU
VSP SENSOR (km/h) X — Output speed sensor (secondary speed sensor)
ESTM VSP SIG (km/h) X —
PRI SPEED SEN (rpm) X —
ENG SPEED SIG (rpm) X —
SEC HYDR SEN (V) X —
PRI HYDR SEN (V) X —
ATF TEMP SEN (V) X — CVT fluid temperature sensor
VIGN SEN (V) X —
VEHICLE SPEED (km/h) — X Vehicle speed recognized by the TCM
PRI SPEED (rpm) — X Primary pulley speed
SEC SPEED (rpm) — — Secondary pulley speed
ENG SPEED (rpm) — X
SLIP REV (rpm) — XDifference between engine speed and primary
pulley speed
GEAR RATIO — X
G SPEED (G) — —
ACC PEDAL OPEN (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
TRQ RTO — —
SEC PRESS (MPa) — X
PRI PRESS (MPa) — X
ATF TEMP — X
DSR REV (rpm) — —
DGEAR RATIO — —

TROUBLE DIAGNOSIS
CVT-51
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CVT

DSTM STEP (step) — —
STM STEP (step) — X
LU PRS (MPa) — —
LINE PRS (MPa) — —
TGT SEC PRESS (MPa) — —
ISOLT1 (A) — XTorque converter clutch solenoid valve output
current
ISOLT2 (A) — XPressure control solenoid valve A (line pressure
solenoid valve) output current
ISOLT3 (A) — XPressure control solenoid valve B (secondary
pressure solenoid valve) output current
SOLMON1 (A) X XTorque converter clutch solenoid valve monitor
current
SOLMON2 (A) X XPressure control solenoid valve A (line pressure
solenoid valve) monitor current
SOLMON3 (A) X XPressure control solenoid valve B (secondary
pressure solenoid valve) monitor current
INH SW3M (ON/OFF) X — PNP switch 3 ON-OFF status monitor
INH SW4 (ON/OFF) X — PNP switch 4 ON-OFF status
INH SW3 (ON/OFF) X — PNP switch 3 ON-OFF status
INH SW2 (ON/OFF) X — PNP switch 2 ON-OFF status
INH SW1 (ON/OFF) X — PNP switch 1 ON-OFF status
BRAKE SW (ON/OFF) X XStop lamp switch (Signal input with CAN commu-
nication)
FULL SW (ON/OFF) X X
Signal input with CAN communication
IDLE SW (ON/OFF) X X
SPORT MODE SW (ON/OFF) X X
Not mounted but displayed STRDWNSW (ON/OFF) X —
STRUPSW (ON/OFF) X —
DOWNLVR (ON/OFF) X —
UPLVR (ON/OFF) X —
NON MMODE (ON/OFF) X —
MMODE (ON/OFF) X —
INDLRNG (ON/OFF) — —
INDDRNG (ON/OFF) — — “D” position indicator output
INDNRNG (ON/OFF) — — “N” position indicator output
INDRRNG (ON/OFF) — — “R” position indicator output
INDPRNG (ON/OFF) — — “P” position indicator output
CVTLAMP (ON/OFF) — —Monitored item (Unit)Monitor item selection
Remarks ECU
INPUT
SIGNALSMAIN SIG-
NALSSELEC-
TION
FROM
MENU

CVT-52
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" .
SPORT MODE IND (ON/OFF) — — Not mounted but displayed.
MMODE IND (ON/OFF) — —
SMCOIL D (ON/OFF) — — Step motor coil “D” energizing status
SMCOIL C (ON/OFF) — — Step motor coil “C” energizing status
SMCOIL B (ON/OFF) — — Step motor coil “B” energizing status
SMCOIL A (ON/OFF) — — Step motor coil “A” energizing status
LUSEL SOL OUT (ON/OFF) — —
REV LAMP (ON/OFF) — X
STRTR RLY OUT (ON/OFF) — — Starter relay
LUSEL SOL MON (ON/OFF) — —
STRTR RLY MON (ON/OFF) — — Starter relay
VDC ON (ON/OFF) X — ESP (Electronic Stability Program)
TCS ON (ON/OFF) X —
ABS ON (ON/OFF) X —
ACC ON (ON/OFF) X — Not mounted but displayed
RANGE — XIndicates position is recognized by TCM. Indi-
cates a specific value required for control when
fail-safe function is activated
M GEAR POS — X
Voltage (V) — —Displays the value measured by the voltage
probe
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
BCIA0031E

DTC U1000 CAN COMMUNICATION LINE
CVT-53
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CVT

DTC U1000 CAN COMMUNICATION LINEPFP:23710
DescriptionBCS001GS
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent malfunction detection ability.
Many electronic control units are equipped onto a vehicle, and each control unit shares information and links
with other control units during operation (not independent). In CAN communication, control units are con-
nected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission
with less wiring. Each control unit transmits/receives data but selectively reads required data only.
On Board Diagnosis LogicBCS001GT
Diagnostic trouble code “U1000 CAN COMM CIRCUIT” with CONSULT-II is detected when TCM cannot com-
municate to other control units.
Possible CauseBCS001GU
Harness or connectors
(CAN communication line is open or shorted.)
DTC Confirmation ProcedureBCS001GV
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
3. Start engine and wait for at least 6 seconds.
4. If DTC is detected, go to CVT-55, "
Diagnostic Procedure" .
BCIA0031E

CVT-54
DTC U1000 CAN COMMUNICATION LINE

Wiring Diagram — CVT — CANBCS001GW
TCWM0530E