Infiniti EX35. Manual - part 1421

TM-72

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

P1710 A/T FLUID TEMPERATURE SENSOR

P1710 A/T FLUID TEMPERATURE SENSOR

Description

INFOID:0000000003130520

The A/T fluid temperature sensor detects the A/T fluid temperature and transmits a signal to the TCM.

DTC Logic

INFOID:0000000003130521

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

CAUTION:

Always drive vehicle at a safe speed.
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.

1.

CHECK DTC DETECTION

 With CONSULT-III

1.

Start the engine.

2.

Select “Data Monitor” mode for “TRANSMISSION”.

3.

Drive vehicle and maintain the following conditions for at least 10 minutes (total). (It is not necessary to
maintain continuously.)

 With GST

Follow the procedure “With CONSULT-III”.

Is “P1710 ATF TEMP SEN/CIRC” detected?

YES

>> Go to 

TM-72, "Diagnosis Procedure"

.

NO

>> Check intermittent incident. Refer to 

GI-38, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000003130522

1.

CHECK A/T FLUID TEMPERATURE SENSOR 1 SIGNAL

With CONSULT-III

1.

Start the engine.

2.

Select “Data Monitor” mode for “TRANSMISSION”.

3.

Check “ATF TEMP SE 1” and “ATF TEMP SE 2” values.

Which item is abnormal?

ATF TEMP SE 1>>GO TO 2.
ATF TEMP SE 2>>GO TO 5.

2.

CHECK A/T FLUID TEMPERATURE SENSOR 1 

DTC

Item

(CONSULT-III screen 

terms)

A/T CHECK indicator 
lamp judgment flicker

Diagnostic item is de-

tected when...

Possible cause

P1710

ATF TEMP SEN/CIRC

10th

While running, the A/T 
fluid temperature sensor 
signal voltage is exces-
sively high or low.

• Harness or connectors

(Sensor circuit is open 
or shorted.)

• A/T fluid temperature 

sensors 1 and/or 2

VHCL/S SE-A/T

: 10 km/h (6 MPH) or more

ACCELE POSI

: More than 1.0/8

SLCT LVR POSI

: “D” position

Item name

Condition 

°

C (

°

F)

Value (Approx.)

ATF TEMP SE 1

0 (32) – 20 (68) – 80 (176)

3.3 – 2.7 – 0.9 V

ATF TEMP SE 2

0 (32) – 20 (68) – 80 (176)

3.3 – 2.5 – 0.7 V

P1710 A/T FLUID TEMPERATURE SENSOR

TM-73

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

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1.

Remove control valve with TCM. Refer to 

TM-162, "Exploded View"

.

2.

Disconnect park/neutral position switch connector.

3.

Check A/T fluid temperature sensor 1. Refer to 

TM-74, "Component Inspection (A/T fluid temperature

sensor 1)"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace damaged parts. Refer to 

TM-162, "Exploded View"

.

3.

CHECK SUB-HARNESS

1.

Disconnect TCM connector.

2.

Check continuity between park/neutral position switch connector terminals and TCM connector terminals.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace damaged parts.

4.

DETECT MALFUNCTIONING ITEM

Check the following.
• Check terminals of park/neutral position switch connector and TCM connector, and harness cladding for

damage.

• Check connector for loose connection.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace damaged parts.

5.

CHECK A/T FLUID TEMPERATURE SENSOR 2 

1.

Remove A/T fluid temperature sensor 2. Refer to 

TM-168, "Exploded View"

.

2.

Check A/T fluid temperature sensor 2. Refer to 

TM-74, "Component Inspection (A/T fluid temperature

sensor 2)"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace damaged parts. Refer to 

TM-168, "Exploded View"

.

6.

CHECK TERMINAL CORD ASSEMBLY

1.

Remove control valve with TCM. Refer to 

TM-162, "Exploded View"

.

2.

Disconnect TCM connector.

3.

Check continuity between A/T fluid temperature sensor 2 connector terminals and TCM connector termi-
nals.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace damaged parts.

7.

DETECT MALFUNCTIONING ITEM

Check the following.
• Check terminals of A/T fluid temperature sensor 2 connector and TCM connector, and harness cladding for

damage.

• Check connector for loose connection.

Park/neutral position switch connector

TCM connector

Continuity

Connector

Terminal

Connector

Terminal

F154

6

F152

19

Existed

7

18

A/T fluid temperature sensor 2 connector

TCM connector

Continuity

Connector

Terminal

Connector

Terminal

F156

1

F151

3

Existed

2

5

TM-74

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

P1710 A/T FLUID TEMPERATURE SENSOR

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace damaged parts.

8.

CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

Check TCM power supply and ground circuit. Refer to 

TM-89, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Replace the control valve with TCM. Refer to 

TM-162, "Exploded View"

.

NO

>> Repair or replace damaged parts.

Component Inspection (A/T fluid temperature sensor 1)

INFOID:0000000003130523

1.

CHECK A/T FLUID TEMPERATURE SENSOR 1

Check resistance between park/neutral position switch connector terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace control valve with TCM. Refer to 

TM-162, "Exploded View"

.

Component Inspection (A/T fluid temperature sensor 2)

INFOID:0000000003130524

1.

CHECK A/T FLUID TEMPERATURE SENSOR 2

Check resistance between A/T fluid temperature sensor 2 connector terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace the A/T fluid temperature sensor 2. Refer to 

TM-168, "Exploded View"

.

Park/neutral position switch connector

Temperature 

°

C (

°

F)

Resistance (Approx.)

Connector

Terminal

F154

6

7

0 (32)

15 k

Ω

20 (68)

6.5 k

Ω

80 (176)

0.9 k

Ω

A/T fluid temperature sensor 2 connector

Temperature 

°

C (

°

F)

Resistance (Approx.)

Connector

Terminal

F156

1

2

0 (32)

10 k

Ω

20 (68)

4 k

Ω

80 (176)

0.5 k

Ω

P1721 VEHICLE SPEED SENSOR MTR

TM-75

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

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P1721 VEHICLE SPEED SENSOR MTR

Description

INFOID:0000000003130525

The vehicle speed sensor·MTR signal is transmitted from unified meter and A/C amp. to TCM by CAN commu-
nication line. The signal functions as an auxiliary device to the revolution sensor when it is malfunctioning. The
TCM will then use the vehicle speed sensor·MTR signal.

DTC Logic

INFOID:0000000003130526

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

CAUTION:

Always drive vehicle at a safe speed.
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.

1.

CHECK DTC DETECTION

 With CONSULT-III

1.

Start the engine.

2.

Select “Data Monitor” mode for “TRANSMISSION”.

3.

Drive vehicle and maintain the following conditions for at least 5 consecutive seconds.

Is “P1721 VEH SPD SE/CIR-MTR” detected?

YES

>> Go to 

TM-75, "Diagnosis Procedure"

.

NO

>> Check intermittent incident. Refer to 

GI-38, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000003130527

1.

CHECK DTC OF UNIFIED METER AND A/C AMP.

 With CONSULT-III

Select “Self Diagnostic Results” mode for “METER/M&A”.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Check DTC detected item. Refer to 

MWI-40, "CONSULT-III Function (METER/M&A)"

.

2.

CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

Check TCM power supply and ground circuit. Refer to 

TM-89, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Replace the control valve with TCM. Refer to 

TM-162, "Exploded View"

.

NO

>> Repair or replace damaged parts.

DTC

Item

(CONSULT-III screen 

terms)

A/T CHECK indicator 
lamp judgment flicker

Diagnostic item is detect-

ed when...

Possible cause

P1721

VEH SPD SE/CIR-MTR

—

• Signal (CAN commu-

nication) from vehicle 
speed sensor MTR not 
input due to cut line or 
the like.

• Unexpected signal in-

put during running.

Harness or connectors
(Sensor circuit is open or 
shorted.)

VHCL/S SE-MTR

: 30 km/h (19 MPH) or more

ACCELE POSI

: 1.0/8 or less