DTC Logic
DTC DETECTION LOGIC
DTC | CONSULT screen terms (Trouble diagnosis content) | DTC detection condition | Possible causes |
P0720 | OUTPUT SPEED SENSOR (Output Speed Sensor Circuit) | The output speed sensor value is less than
150 rpm continuously for 5 seconds or more
under the following diagnosis conditions: Diagnosis conditions
|
|
The output speed sensor value is 90 rpm or
less continuously for 500 msec or more under
the following diagnosis conditions: Diagnosis conditions
|
DTC CONFIRMATION PROCEDURE
CAUTION:
Be careful of the driving speed.
1.PREPARATION BEFORE WORK
If another “DTC CONFIRMATION PROCEDURE” occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.
>> GO TO 2.
2.CHECK DTC DETECTION
Selector lever : “D” position
Vehicle speed : 55 km/h (34 MPH) or more
Is “P0720” detected? YES >> Go to TM-181, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK OUTPUT SPEED SENSOR POWER CIRCUIT
Is the check result normal? YES >> GO TO 2.
NO >> GO TO 6.
2.CHECK OUTPUT SPEED SENSOR GROUND CIRCUIT
Check the continuity between output speed sensor harness connector terminal and ground.
Is the check result normal? YES >> GO TO 3.
NO >> Repair or replace malfunctioning parts.
3.CHECK CIRCUIT BETWEEN OUTPUT SPEED SENSOR AND TCM (PART 1)
Is the check result normal? YES >> GO TO 4.
NO >> Repair or replace malfunctioning parts.
4.CHECK CIRCUIT BETWEEN OUTPUT SPEED SENSOR AND TCM (PART 2)
Check continuity between output speed sensor harness connector terminal and ground.
Is the check result normal? YES >> GO TO 5.
NO >> Repair or replace malfunctioning parts.
5.Check tcm input signals
Is the check result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
NO >> Replace output speed sensor. Refer to TM-270, "Exploded View".
6.DETECT MALFUNCTIONING ITEMS
Check the following items:
Is the check result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
NO >> Repair or replace malfunctioning parts.
Primary speed sensor
Exploded View
Transaxle assembly
O-ring
Primary speed sensor
: Always replace after every
disassembly.
: N m (kg-m, in-lb)
: Genuine NISSAN CVT Fluid NS-3
Removal and Installation
REMOVAL
Disconnect the primary speed sensor connector.
Remove the primary speed sensor.
...
Wiring diagram
Eco mode system
Wiring diagram
...
Main line between dlc and hvac circuit
Diagnosis Procedure
1.Check harness continuity (open circuit)
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Disconnect the following harness connectors.
Ecm
A/c auto amp.
Check the continuity between the data link connector and the a/c ...