Nissan Teana J32. Instruction — part 1183
TM-256
< COMPONENT DIAGNOSIS >
[CVT: RE0F10A]
P1723 CVT SPEED SENSOR FUNCTION
YES
>> Repair or replace damaged parts. Refer to
.
NO
>> GO TO 2.
2.
CHECK OUTPUT SPEED SENSOR (SECONDARY SPEED SENSOR) SYSTEM
Check output speed sensor (secondary speed sensor) system. Refer to
.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace damaged parts.
3.
CHECK INPUT SPEED SENSOR (PRIMARY SPEED SENSOR) SYSTEM
Check input speed sensor (primary speed sensor) system. Refer to
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace damaged parts.
4.
CHECK ENGINE SPEED SIGNAL SYSTEM
Check engine speed signal system. Refer to
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace damaged parts.
5.
DETECT MALFUNCTIONING ITEMS
Check TCM connector pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
NO
>> Repair or replace damaged parts.
P1726 ELECTRIC THROTTLE CONTROL SYSTEM
TM-257
< COMPONENT DIAGNOSIS >
[CVT: RE0F10A]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
P1726 ELECTRIC THROTTLE CONTROL SYSTEM
Description
INFOID:0000000003806461
The electric throttle control actuator consists of throttle control motor, accelerator pedal position sensor, throt-
tle position sensor, etc. The actuator sends a signal to the ECM, and ECM sends the signal to TCM via CAN
communication.
DTC Logic
INFOID:0000000003806462
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.
Perform the following procedure to confirm the malfunction is eliminated after the repair.
1.
CHECK DTC DETECTION
With CONSULT-III
1.
Turn ignition switch ON.
2.
Start engine and let it idle for 5 seconds.
3.
Select “Self Diagnostic Results” mode for “TRANSMISSION”.
Is “P1726 ELEC TH CONTROL” detected?
YES
>> Go to
NO
>> Check intermittent incident. Refer to
GI-35, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000003806463
1.
CHECK DTC WITH ECM
With CONSULT-III
1.
Turn ignition switch ON.
2.
Select “Self Diagnostic Results” mode for “ENGINE”.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Check the DTC Detected Item. Refer to
EC-113, "CONSULT-III Function"
.
2.
CHECK DTC WITH TCM
With CONSULT-III
Select “Self Diagnostic Results” mode for “TRANSMISSION”.
Is “P1726 ELEC TH CONTROL” detected?
YES
NO
>> GO TO 3.
3.
DETECT MALFUNCTIONING ITEMS
Check TCM connector pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
NO
>> Repair or replace damaged parts.
DTC
Item
(CONSULT-III screen term)
Malfunction is detected when...
Possible cause
P1726
ELEC TH CONTROL
The electronically controlled
throttle for ECM is malfunction-
ing.
Harness or connectors
(Sensor circuit is open or short-
ed.)
TM-258
< COMPONENT DIAGNOSIS >
[CVT: RE0F10A]
P1740 LOCK-UP SELECT SOLENOID VALVE
P1740 LOCK-UP SELECT SOLENOID VALVE
Description
INFOID:0000000003806464
• The lock-up select solenoid valve controls lock-up clutch pressure or forward clutch pressure (reverse brake
pressure).
• When controlling lock-up clutch, the valve is turned OFF. When controlling forward clutch, it is turned ON.
DTC Logic
INFOID:0000000003806465
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.
Perform the following procedure to confirm the malfunction is eliminated after the repair.
1.
CHECK DTC DETECTION
With CONSULT-III
1.
Turn ignition switch ON.
2.
Select “Data Monitor” mode for “TRANSMISSION”.
3.
Start engine and maintain the following conditions for at least 5 consecutive seconds.
With GST
Follow the procedure “With CONSULT-III”.
Is “P1740 LU-SLCT SOL/CIRC” detected?
YES
>> Go to
NO
>> Check intermittent incident. Refer to
GI-35, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000003806466
1.
CHECK LOCK-UP SELECT SOLENOID VALVE CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect TCM connector.
3.
Check resistance between TCM vehicle side harness connector terminal and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 2.
DTC
Item
(CONSULT-III screen term)
Malfunction is detected when...
Possible cause
P1740
LU-SLCT SOL/CIRC
• Normal voltage is not applied
to solenoid due to cut line,
short, etc.
• TCM detects as irregular by
comparing target value with
monitor value.
• Lock-up select solenoid valve
• Harness or connectors
(Solenoid circuit is open or
shorted.)
RANGE
: “D” and “N” positions
(At each time, wait for 5 seconds.)
TCM vehicle side harness connector
Ground
Resistance (Approx.)
Connector
Terminal
F23
37
17.0 – 38.0
Ω
P1740 LOCK-UP SELECT SOLENOID VALVE
TM-259
< COMPONENT DIAGNOSIS >
[CVT: RE0F10A]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
2.
CHECK HARNESS BETWEEN TCM AND CVT UNIT (LOCK-UP SELECT SOLENOID VALVE) (PART 1)
1.
Disconnect CVT unit connector.
2.
Check continuity between TCM vehicle side harness connector terminal and CVT unit vehicle side har-
ness connector terminal.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace damaged parts.
3.
CHECK HARNESS BETWEEN TCM AND CVT UNIT (LOCK-UP SELECT SOLENOID VALVE) (PART 2)
Check continuity between TCM vehicle side harness connector terminal and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace damaged parts.
4.
CHECK LOCK-UP SELECT SOLENOID VALVE
Check lock-up select solenoid valve. Refer to
TM-259, "Component Inspection (Lock-up Select Solenoid
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace damaged parts.
5.
DETECT MALFUNCTIONING ITEMS
Check TCM connector pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
NO
>> Repair or replace damaged parts.
Component Inspection (Lock-up Select Solenoid Valve)
INFOID:0000000003806467
1.
LOCK-UP SELECT SOLENOID VALVE
Check resistance between CVT unit harness connector terminal and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the transaxle assembly. Refer to
.
TCM vehicle side harness connector
CVT unit vehicle side harness connector
Continuity
Connector
Terminal
Connector
Terminal
F23
37
F24
13
Existed
TCM vehicle side harness connector
Ground
Continuity
Connector
Terminal
F23
37
Not existed
CVT unit harness connector
Ground
Resistance (Approx.)
Connector
Terminal
F24
13
17.0 – 38.0
Ω
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