Infiniti FX35, FX50 (S51). Manual — part 1817
P0717 INPUT SPEED SENSOR A
TM-75
< DTC/CIRCUIT DIAGNOSIS >
[7AT: RE7R01A (VQ35HR)]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
YES
>> Replace A/T assembly. Refer to
(AWD).
NO
>> Repair or replace damaged parts.
TM-76
< DTC/CIRCUIT DIAGNOSIS >
[7AT: RE7R01A (VQ35HR)]
P0720 OUTPUT SPEED SENSOR
P0720 OUTPUT SPEED SENSOR
Description
INFOID:0000000005250039
The output speed sensor detects the revolution of the parking gear and emits a pulse signal. The pulse signal
is transmitted to the TCM which converts it into vehicle speed.
DTC Logic
INFOID:0000000005250040
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
• Always drive vehicle at a safe speed.
• Be careful not to rev engine into the red zone on the tachometer.
1.
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.
CHECK DTC DETECTION
With CONSULT-III
1.
Start the engine.
2.
Select “ESTM VSP SIG” in “Data Monitor” in “TRANSMISSION”
3.
Drive vehicle and maintain the following conditions for 60 seconds or more.
4.
Perform “Self Diagnostic Results” in “TRANSMISSION”.
With GST
Follow the procedure “With CONSULT-III”.
Is “P0720” detected?
YES
>> Go to
NO
>> INSPECTION END
DTC
Trouble diagnosis name
DTC is detected if...
Possible cause
P0720
Output Speed Sensor Circuit
• The vehicle speed detected
by the output speed sensor is
5 km/h (3MPH) or less when
the vehicle speed transmitted
from the unified meter and A/
C amp. to TCM is 20 km/h or
more. (Only when starts after
the ignition switch is turned
ON.)
• The vehicle speed transmit-
ted from the unified meter
and A/C amp. to TCM does
not decrease despite the 36
km/h (23 MPH) or more of de-
celeration in vehicle speed
detected by the output speed
sensor. when the vehicle
speed detected by the output
speed sensor is 36 km/h (23
MPH) or more and the vehicle
speed transmitted from the
unified meter and A/C amp. to
TCM is 24 (15 MPH) or more.
• Harness or connectors
(Sensor circuit is open.)
• Output speed sensor
ESTM VSP SIG
: 40 km/h (25 MPH) or more
P0720 OUTPUT SPEED SENSOR
TM-77
< DTC/CIRCUIT DIAGNOSIS >
[7AT: RE7R01A (VQ35HR)]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
Diagnosis Procedure
INFOID:0000000005250041
1.
CHECK INTERMITTENT INCIDENT
GI-36, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace A/T assembly. Refer to
(AWD).
NO
>> Repair or replace damaged parts.
TM-78
< DTC/CIRCUIT DIAGNOSIS >
[7AT: RE7R01A (VQ35HR)]
P0725 ENGINE SPEED
P0725 ENGINE SPEED
Description
INFOID:0000000005250042
The engine speed signal is transmitted from the ECM to the TCM with CAN communication line.
DTC Logic
INFOID:0000000005250043
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
1.
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.
CHECK DTC DETECTION
With CONSULT-III
1.
Start the engine.
2.
Select “SLCT LVR POSI” and “VHCL/S SE-A/T” in “Data Monitor” in “TRANSMISSION”.
3.
Drive vehicle and maintain the following conditions for 5 seconds or more.
4.
Perform “Self Diagnostic Results” in “TRANSMISSION”.
Is “P0725” detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005250044
1.
CHECK DTC OF ECM
With CONSULT-III
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
EC-124, "CONSULT-III Function"
2.
CHECK DTC OF TCM
With CONSULT-III
Perform “Self Diagnostic Results” in “TRANSMISSION”.
Is any DTC other than “P0725” detected?
YES
>> GO TO 3.
NO
>> Check DTC detected item. Refer to
TM-62, "CONSULT-III Function (TRANSMISSION)"
.
DTC
Trouble diagnosis name
DTC is detected if...
Possible cause
P0725
Engine Speed Input Circuit
• TCM does not receive the
CAN communication signal
from the ECM.
• The engine speed is more
less 150 rpm even if the vehi-
cle speed is more than 10 km/
h (7 MPH).
Harness or connectors
(ECM to TCM circuit is open or
shorted.)
SLCT LVR POSI
: D
VHCL/S SE-A/T
: More than 10km/h (7 MPH)
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