Infiniti FX35, FX50 (S51). Manual — part 1862

P0717 INPUT SPEED SENSOR A

TM-255

< DTC/CIRCUIT DIAGNOSIS >

[7AT: RE7R01B (VK50VE)]

P0717 INPUT SPEED SENSOR A

Description

INFOID:0000000005250233

The input speed sensor detects input shaft rpm (revolutions per minute). It is located on the input side of the A/
T. Monitors revolution of sensor 1 and sensor 2 for non-standard conditions.

DTC Logic

INFOID:0000000005250234

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

CAUTION:

Always drive vehicle at a safe speed.

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.

CHECK DTC DETECTION

With CONSULT-III

Start the engine.

Select “SLCT LVR POSI”, “GEAR”, “VHCL/S SE-A/T”, “CLSD THL POS” and “ENGINE SPEED” in “Data
Monitor” in “TRANSMISSION”.

Drive vehicle and maintain the following conditions for 5 seconds or more.

CAUTION:

Keep the same gear position.
NOTE:
Driving the vehicle uphill (increased engine load) will help maintain the driving conditions required for this
test.

Perform “Self Diagnostic Results” in “TRANSMISSION”.

With GST

Follow the procedure “With CONSULT-III”.

Is “P0717” detected?

YES

>> Go to

TM-255, "Diagnosis Procedure"

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005250235

CHECK INTERMITTENT INCIDENT

Refer to

GI-36, "Intermittent Incident"

Is the inspection result normal?

YES

>> Replace A/T assembly. Refer to

TM-362, "Exploded View"

DTC

Trouble diagnosis name

DTC is detected if...

Possible cause

P0717

Input/Turbine Speed Sensor A
Circuit No Signal

The revolution of input speed
sensor 1 and/or 2 is 270 rpm or
less.

• Harness or connectors

(Sensor circuit is open.)

• Input speed sensor 1 and/or

SLCT LVR POSI

: D

GEAR

: 2nd, 3rd, 4th, 5th or 6th

VHCL/S SE-A/T

: More than 40 km/h (25 MPH)

CLSD THL POS

: OFF

ENGINE SPEED

: More than 1,500 rpm

TM-256

< DTC/CIRCUIT DIAGNOSIS >

[7AT: RE7R01B (VK50VE)]

P0717 INPUT SPEED SENSOR A

>> Repair or replace damaged parts.

P0720 OUTPUT SPEED SENSOR

TM-257

< DTC/CIRCUIT DIAGNOSIS >

[7AT: RE7R01B (VK50VE)]

P0720 OUTPUT SPEED SENSOR

Description

INFOID:0000000005250236

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:0000000005250237

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.

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.

CHECK DTC DETECTION

With CONSULT-III

Start the engine.

Select “ESTM VSP SIG” in “Data Monitor” in “TRANSMISSION”.

Drive vehicle and maintain the following conditions for 60 seconds or more.

Perform “Self Diagnostic Results” in “TRANSMISSION”.

With GST

Follow the procedure “With CONSULT-III”.
Is “P0720” detected?

YES

>> Go to

TM-258, "Diagnosis Procedure"

>> 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