Nissan Murano. Manual — part 1380
TM-62
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F09B]
P0720 OUTPUT SPEED SENSOR
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair or replace damaged parts.
7.
CHECK HARNESS BETWEEN IPDM E/R AND SECONDARY SPEED SENSOR (POWER) (PART 2)
Check continuity between IPDM E/R vehicle side harness connector terminal and ground.
Is the inspection result normal?
YES
>>
Check the following. If NG, repair or replace damaged parts.
• Harness for short or open between ignition switch and IPDM E/R
• 10A fuse (No. 43, located in IPDM E/R)
• Ignition switch
NO
>> Repair or replace damaged parts.
8.
CHECK HARNESS BETWEEN TCM AND SECONDARY SPEED SENSOR (SENSOR GROUND) (PART 1)
1.
Turn ignition switch OFF.
2.
Disconnect TCM connector.
3.
Check continuity between TCM vehicle side harness connector terminal and secondary speed sensor
vehicle side harness connector terminal.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Repair or replace damaged parts.
9.
CHECK HARNESS BETWEEN TCM AND SECONDARY SPEED SENSOR (SENSOR GROUND) (PART 2)
Check continuity between TCM vehicle side harness connector terminal and ground.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Repair or replace damaged parts.
10.
CHECK TCM
1.
Replace with the same type of TCM. Refer to
.
2.
Perform “DTC CONFIRMATION PROCEDURE”. Refer to
.
Is “P0720” detected?
YES
>> Replace the secondary speed sensor. Refer to
.
NO
11.
DETECT MALFUNCTIONING ITEMS
Check TCM connector pin terminals for damage or loose connection with harness connector.
IPDM E/R vehicle side harness connector
Secondary speed sensor vehicle side harness con-
nector
Continuity
Connector
Terminal
Connector
Terminal
F12
58
F19
3
Existed
IPDM E/R vehicle side harness connector
Ground
Continuity
Connector
Terminal
F12
58
Not existed
TCM vehicle side harness connector
Secondary speed sensor vehicle side harness con-
nector
Continuity
Connector
Terminal
Connector
Terminal
F23
7
F19
1
Existed
TCM vehicle side harness connector
Ground
Continuity
Connector
Terminal
F23
7
Not existed
P0720 OUTPUT SPEED SENSOR
TM-63
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F09B]
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Is the inspection result normal?
YES
NO
>> Repair or replace damaged parts.
TM-64
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F09B]
P0725 ENGINE SPEED
P0725 ENGINE SPEED
Description
INFOID:0000000009719450
The engine speed signal is transmitted from ECM to TCM via CAN communication line.
DTC Logic
INFOID:0000000009719451
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
Immediately after performing any “DTC CONFIRMATION PROCEDURE”, always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.
1.
CHECK DTC DETECTION
With CONSULT
1.
Turn ignition switch ON.
2.
Select “Data Monitor” in “TRANSMISSION”.
3.
Start engine and maintain the following conditions for at least 10 consecutive seconds.
Is “P0725” detected?
YES
>> Go to
NO
>> Check intermittent incident. Refer to
GI-44, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000009719452
1.
CHECK DTC WITH ECM
With CONSULT
1.
Turn ignition switch ON.
2.
Perform “Self Diagnostic Results” in “ENGINE”.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Check DTC detected item. Refer to
2.
CHECK DTC WITH TCM
With CONSULT
Perform “Self Diagnostic Results” in “TRANSMISSION”.
Is “P0725” detected?
YES
>> Replace TCM. Refer to
.
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
Trouble diagnosis name
DTC is detected if...
Possible cause
P0725
Engine Speed Input Circuit
• TCM does not receive the CAN communi-
cation signal from the ECM.
• Engine speed is too low while driving.
Harness or connectors
(The ECM to the TCM circuit is open or
shorted.)
PRI SPEED SEN
: More than 1000 rpm
P0740 TORQUE CONVERTER
TM-65
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F09B]
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P0740 TORQUE CONVERTER
Description
INFOID:0000000009719453
• The torque converter clutch solenoid valve is activated by the TCM in response to signals sent from the vehi-
cle speed and accelerator pedal position sensors. Lock-up piston operation will then be controlled.
• Lock-up operation, however, is prohibited when CVT fluid temperature is too low.
• When the accelerator pedal is depressed (less than 2.0/8) in lock-up condition, the engine speed should not
change abruptly. If there is a big jump in engine speed, there is no lock-up.
DTC Logic
INFOID:0000000009719454
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
NOTE:
Immediately after performing any “DTC CONFIRMATION PROCEDURE”, always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.
1.
CHECK DTC DETECTION
With CONSULT
1.
Turn ignition switch ON.
2.
Wait at least 10 consecutive seconds.
3.
Perform “Self Diagnostic Results” in “TRANSMISSION”.
With GST
Follow the procedure “With CONSULT”.
Is “P0740” detected?
YES
>> Go to
NO
>> Check intermittent incident. Refer to
GI-44, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000009719455
1.
CHECK TORQUE CONVERTER CLUTCH 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.
2.
CHECK HARNESS BETWEEN TCM AND CVT UNIT (TORQUE CONVERTER CLUTCH 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.
DTC
Trouble diagnosis name
DTC is detected if...
Possible cause
P0740
Torque Converter Clutch Cir-
cuit/Open
Normal voltage is not applied to solenoid
due to open or short circuit.
• Torque converter clutch solenoid valve
• Harness or connectors
(Solenoid circuit is open or shorted.)
TCM vehicle side harness connector
Ground
Resistance (Approx.)
Connector
Terminal
F23
38
3.0 – 9.0
Ω
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