Nissan Maxima. Instruction — part 1149
TM-60
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F09B]
P0720 OUTPUT SPEED SENSOR
P0720 OUTPUT SPEED SENSOR
Description
INFOID:0000000010113603
The secondary speed sensor detects the revolution of the CVT output shaft and emits a pulse signal. The
pulse signal is transmitted to the TCM, which converts it into vehicle speed.
DTC Logic
INFOID:0000000010113604
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 12 consecutive seconds.
With GST
Follow the procedure “With CONSULT”.
Is “P0720” detected?
YES
>> Go to
NO
>> Check intermittent incident. Refer to
GI-41, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000010113605
Regarding Wiring Diagram information, refer to
.
1.
CHECK SECONDARY SPEED SENSOR
With CONSULT
Check the pulse when vehicle drive.
Is the inspection result normal?
YES
>> GO TO 11.
NO
>> GO TO 2.
DTC
Trouble diagnosis name
DTC is detected if...
Possible cause
P0720
Output Speed Sensor Circuit
• Signal from vehicle speed sensor CVT [out-
put speed sensor (secondary speed sen-
sor)] is not input due to open or short circuit.
• An unexpected signal is input during run-
ning.
• Harness or connectors
(Sensor circuit is open or shorted.)
• Secondary speed sensor
ACC PEDAL OPEN
: More than 1.0/8
RANGE
: “D” position
Driving location
: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
TCM connector
Condition
Data
(Approx.)
Connector
Terminal
F15
34
When driving [“D” position, 20 km/h (12
MPH)]
390 Hz
AWDIA0106ZZ
P0720 OUTPUT SPEED SENSOR
TM-61
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F09B]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
2.
CHECK POWER AND SENSOR GROUND
1. Turn ignition switch OFF.
2. Disconnect secondary speed sensor connector.
3. Turn ignition switch ON.
4. Check voltage between secondary speed sensor vehicle side
harness connector terminals.
5. Check voltage between secondary speed sensor vehicle side
harness connector terminal and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO-1(Battery voltage is not supplied between terminals 1 and 3,
terminal 3 and ground)>>GO TO 6.
NO-2(Battery voltage is not supplied between terminals 1 and 3 only)>>GO TO 8.
3.
CHECK HARNESS BETWEEN TCM AND SECONDARY SPEED SENSOR (SENSOR GROUND)
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. 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 HARNESS BETWEEN TCM AND SECONDARY SPEED SENSOR (PART 1)
Check continuity between TCM vehicle side harness connector ter-
minal and secondary speed sensor vehicle side harness connector
terminal.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace damaged parts.
5.
CHECK HARNESS BETWEEN TCM AND SECONDARY SPEED SENSOR (PART 2)
Secondary speed sensor vehicle side harness connector
Voltage (Approx.)
Connector
Terminal
F23
1
3
Battery voltage
AWDIA0107ZZ
Secondary speed sensor vehicle side harness
connector
Ground
Voltage
(Approx.)
Connector
Terminal
F23
3
Battery voltage
AWDIA0108ZZ
TCM vehicle side harness connector
Ground
Continuity
Connector
Terminal
F15
7
Not existed
AWDIA0109ZZ
TCM vehicle side harness
connector
Secondary speed sensor vehi-
cle side harness connector
Continuity
Connector
Terminal
Connector
Terminal
F15 (A)
34
F23 (B)
2
Existed
AWDIA0110ZZ
TM-62
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F09B]
P0720 OUTPUT SPEED SENSOR
Check continuity between TCM vehicle side harness connector ter-
minal and ground.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Repair or replace damaged parts.
6.
CHECK HARNESS BETWEEN IPDM E/R AND SECONDARY SPEED SENSOR (POWER) (PART 1)
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R vehicle side harness con-
nector terminal and secondary speed sensor vehicle side har-
ness connector terminal.
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. 34, 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 con-
nector terminal.
Is the inspection result normal?
TCM vehicle side harness connector
Ground
Continuity
Connector
Terminal
F15
34
Not existed
AWDIA0111ZZ
IPDM E/R vehicle side harness
connector
Secondary speed sensor vehi-
cle side harness connector
Continuity
Connector
Terminal
Connector
Terminal
F10 (A)
58
F23 (B)
3
Existed
AWDIA0112ZZ
IPDM E/R vehicle side harness connector
Ground
Continuity
Connector
Terminal
F10
58
Not existed
AWDIA0113ZZ
TCM vehicle side harness
connector
Secondary speed sensor vehi-
cle side harness connector
Continuity
Connector
Terminal
Connector
Terminal
F15 (A)
7
F23 (B)
1
Existed
AWDIA0114ZZ
P0720 OUTPUT SPEED SENSOR
TM-63
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F09B]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
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 ter-
minal 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.
Is the inspection result normal?
YES
NO
>> Repair or replace damaged parts.
TCM vehicle side harness connector
Ground
Continuity
Connector
Terminal
F15
7
Not existed
AWDIA0109ZZ
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