diagram NISSAN TEANA 2003 Owners Manual

DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)
CVT-83
D
E
F
G
H
I
J
K
L
MA
B
CVT

5. CHECK THE TCM SHORT
Replace same type TCM, perform self-diagnosis check. Erase self-diagnostic results and them drive the vehi-
cle [more than 40 km/h (25 MPH)], perform self-diagnosis check. Refer to CVT-79, "
DTC Confirmation Proce-
dure" .
Is
“P0720 VEH SPD SEN/CIR AT” detected again?
YES >> Replace the transaxle assembly. Refer to CVT-193, "Removal and Installation" .
NO >> Replace TCM. Refer to CVT-9, "
Precautions for TCM and CVT Assembly Replacement" .
6. CHECK HARNESS BETWEEN TCM AND OUTPUT SPEED SENSOR (SECONDARY SPEED SEN-
SOR) (POWER)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and output speed sensor (secondary speed sensor) harness connector.
3. Check continuity between TCM connector terminals and output
speed sensor (secondary speed sensor) harness connector ter-
minal. Refer to CVT-31, "
Circuit Diagram" .
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> 10A fuse (No. 83, located in the IPDM E/R) or ignition switch are malfunctioning.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK HARNESS BETWEEN TCM AND OUTPUT SPEED SENSOR (SECONDARY SPEED SEN-
SOR) (SENSOR GROUND)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and output speed sensor (secondary speed sensor) harness connector.
3. Check continuity between TCM connector terminal and output
speed sensor (secondary speed sensor) harness connector ter-
minal.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 8.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
Item Connector Terminal Continuity
TCM F106 10
Ye s
Output speed sensor
(Secondary speed sensor) F48 3
TCM F106 19
Ye s
Output speed sensor
(Secondary speed sensor) F48 3
SCIA2369E
Item Connector Terminal Continuity
TCM F107 42
Ye s
Output speed sensor
(Secondary speed sensor) F48 1
SCIA2347E

CVT-90
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE

Wiring Diagram — CVT — TCVBCS001IM
TCWM0536E

CVT-98
DTC P0745 LINE PRESSURE SOLENOID VALVE

Wiring Diagram — CVT — LPSVBCS001J0
TCWM0537E

CVT-104
DTC P0746 PRESSURE CONTROL SOLENOID A PERFORMANCE (LINE PRES-
SURE SOLENOID VALVE)

4. CHECK OUTPUT SPEED SENSOR (SECONDARY SPEED SENSOR) SYSTEM AND INPUT SPEED
SENSOR (PRIMARY SPEED SENSOR) SYSTEM
Check output speed sensor (secondary speed sensor) system and input speed sensor (primary speed sensor)
system. Refer to CVT-79, "
DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)" ,
CVT-74, "
DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. DETECT MALFUNCTIONING ITEM
Check the following:

Power supply and ground circuit for TCM. Refer to CVT-135, "Wiring Diagram — CVT — POWER" .

The TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to CVT-102, "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> Replace the transaxle assembly or TCM. Refer to CVT-193, "
Removal and Installation" .

CVT-106
DTC P0776 PRESSURE CONTROL SOLENOID B PERFORMANCE (SEC PRES-
SURE SOLENOID VALVE)

Diagnostic ProcedureBCS001JE
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Start vehicle and read out the value of “SEC PRESS”.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2. CHECK LINE PRESSURE
Perform line pressure test. Refer to CVT-33, "
LINE PRESSURE
TEST" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts. Refer to CVT-34,
"Judgement of Line Pressure Test" .
3. DETECT MALFUNCTIONING ITEM
Check the following:

Pressure control solenoid valve B (Secondary pressure solenoid valve). Refer to CVT-112, "Component
Inspection" .

Pressure control solenoid valve A (Line pressure solenoid valve). Refer to CVT-101, "Component Inspec-
tion" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK SECONDARY PRESSURE SENSOR SYSTEM
Check transmission fluid pressure sensor A (secondary pressure sensor) system. Refer to CVT-118, "
DTC
P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT (SEC PRESSURE SENSOR)" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. DETECT MALFUNCTIONING ITEM
Check the following:

Power supply and ground circuit for TCM. Refer to CVT-135, "Wiring Diagram — CVT — POWER" .

The TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
Item name Condition Display value (Approx.)
SEC PRESS “N” position idle 0.5 MPa
SCIA2366E
SAT494G

DTC P0778 PRESSURE CONTROL SOLENOID B ELECTRICAL (SEC PRES-
SURE SOLENOID VALVE)
CVT-109
D
E
F
G
H
I
J
K
L
MA
B
CVT

Wiring Diagram — CVT — SECPSVBCS001JK
TCWM0538E

CVT-114
DTC P0826 MANUAL MODE SWITCH CIRCUIT

Wiring Diagram — CVT — MMSWBCS001JS
TCWM0539E

DTC P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT (SEC
PRESSURE SENSOR)
CVT-119
D
E
F
G
H
I
J
K
L
MA
B
CVT

Wiring Diagram — CVT — SECPSBCS001K1
TCWM0540E

DTC P0845 TRANSMISSION FLUID PRESSURE SENSOR B CIRCUIT (PRI
PRESSURE SENSOR)
CVT-127
D
E
F
G
H
I
J
K
L
MA
B
CVT

Wiring Diagram — CVT — PRIPSBCS001KE
TCWM0541E

DTC P0868 SECONDARY PRESSURE DOWN
CVT-133
D
E
F
G
H
I
J
K
L
MA
B
CVT

5. DETECT MALFUNCTIONING ITEM
Check the following:

Power supply and ground circuit for TCM. Refer to CVT-135, "Wiring Diagram — CVT — POWER" .

The TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to CVT-131, "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> Replace the transaxle assembly. Refer to CVT-193, "
Removal and Installation" .