Infiniti G35 (V35). Manual - part 35

DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT

AT-131

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5. 

CHECK A/T FLUID TEMPERATURE SENSOR 2 

Check A/T fluid temperature sensor 2. Refer to 

AT-132, "A/T FLUID TEMPERATURE SENSOR 2"

 .

OK or NG

OK

>> GO TO 6.

NG

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

AT-233, "A/T FLUID TEMPERATURE SENSOR

2 REMOVAL AND INSTALLATION"

 .

6. 

CHECK TERMINAL CORD ASSEMBLY

1.

Disconnect A/T fluid temperature sensor 2 connector and TCM connector.

2.

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

3.

If OK, check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 7.

NG

>> Replace open circuit or short to ground and short to power in harness or connectors.

7. 

CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

1.

Check TCM power supply and ground circuit. Refer to 

AT-172, "MAIN POWER SUPPLY AND GROUND

CIRCUIT"

 .

2.

Reinstall any part removed.

OK or NG

OK

>> Replace control valve with TCM. Refer to 

AT-225, "Control Valve with TCM and A/T Fluid Temper-

ature Sensor 2"

 .

NG

>> Repair or replace damaged parts.

8. 

CHECK DTC

Perform 

AT-128, "DTC Confirmation Procedure"

 .

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 1.

Item

 Connector

Terminal

Continuity

A/T fluid temperature sen-
sor 2 connector

F507

1

Yes

TCM connector 

F502

3

A/T fluid temperature sen-
sor 2 connector

F507

2

Yes

TCM connector 

F502

5

SCIA5462E

AT-132

DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT

Component Inspection

NCS000EF

A/T FLUID TEMPERATURE SENSOR 1

1.

Remove control valve with TCM. Refer to 

AT-225, "Control Valve with TCM and A/T Fluid Temperature

Sensor 2"

 .

2.

Check resistance between terminals.

3.

If NG, replace control valve with TCM. Refer to 

AT-225, "Control

Valve with TCM and A/T Fluid Temperature Sensor 2"

 .

A/T FLUID TEMPERATURE SENSOR 2

1.

Remove A/T fluid temperature sensor 2. Refer to 

AT-233, "A/T FLUID TEMPERATURE SENSOR 2

REMOVAL AND INSTALLATION"

 .

2.

Check resistance between terminals.

3.

If NG, replace A/T fluid temperature sensor 2. Refer to 

AT-233,

"A/T FLUID TEMPERATURE SENSOR 2 REMOVAL AND
INSTALLATION"

 .

Name

Connector

Terminal

Temperature 

°

C (

°

F)

Resistance 

(Approx.) (k

Ω

)

A/T fluid temperature 
sensor 1

F505

6 - 7

0 (32)

15

20 (68)

6.5

80 (176)

0.9

SCIA5463E

Name

Connector

Terminal

Temperature 

°

C (

°

F)

Resistance 

(Approx.) (k

Ω

)

A/T fluid temperature 
sensor 2

F507

1 - 2

0 (32)

10

20 (68)

4

80 (176)

0.5

SCIA5271E

DTC P1721 VEHICLE SPEED SENSOR MTR

AT-133

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DTC P1721 VEHICLE SPEED SENSOR MTR

PFP:24814

Description

NCS000EM

The vehicle speed sensor·MTR signal is transmitted from combination meter to TCM by CAN communication
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.

CONSULT-II Reference Value

NCS000EN

On Board Diagnosis Logic

NCS000EO

●

This is not an OBD-II self-diagnostic item.

●

Diagnostic trouble code “P1721 VEH SPD SE/CIR-MTR” with CONSULT-II is detected when TCM does
not receive the proper vehicle speed sensor MTR signal (input by CAN communication) from combination
meter.

Possible Cause

NCS000EP

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

DTC Confirmation Procedure

NCS000EQ

CAUTION:

Always drive vehicle at a safe speed.

NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

 WITH CONSULT-II

1.

Turn ignition switch ON.

2.

Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.

3.

Touch “START”.

4.

Start engine and maintain the following conditions for at least 5
consecutive seconds.
ACCELE POSI: 1.0/8 or less
VHCL/S SE-MTR: 30 km/h (17 MPH) or more

5.

If DTC is detected, go to 

AT-134, "Diagnostic Procedure"

 .

Item name

Condition 

Display value

VHCL/S SE-MTR

 During driving

 Approximately matches the speedometer reading.

BCIA0031E

AT-134

DTC P1721 VEHICLE SPEED SENSOR MTR

Diagnostic Procedure

NCS000ER

1. 

CHECK CAN COMMUNICATION LINE

Perform self-diagnosis. Refer to 

AT-86, "SELF-DIAGNOSTIC RESULT MODE"

 , 

AT-95, "Diagnostic Procedure

Without CONSULT-II"

 .

Is malfunction in the CAN communication indicated in the result?

YES

>> Check CAN communication line. Refer to 

AT-98, "DTC U1000 CAN COMMUNICATION LINE"

 .

NO

>> GO TO 2.

2. 

CHECK INPUT SIGNAL

 With CONSULT-II

1.

Start engine.

2.

Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.

3.

Drive vehicle and read out the value of “VHCL/S SE-MTR”.

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 3.

3. 

CHECK COMBINATION METERS

Check combination meters. Refer to 

DI-13, "Trouble Diagnosis"

 .

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace damaged parts.

4. 

CHECK DTC

Perform 

AT-133, "DTC Confirmation Procedure"

 .

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 5.

5. 

CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

Check TCM power supply and ground circuit. Refer to 

AT-172, "MAIN POWER SUPPLY AND GROUND CIR-

CUIT"

 .

OK or NG

OK

>> GO TO 6.

NG

>> Repair or replace damaged parts.

6. 

DETECT MALFUNCTIONING ITEM

Check A/T assembly harness connector pin terminals for damage or loose connection with harness connector.

OK or NG

OK

>> Replace control valve with TCM. Refer to 

AT-225, "Control Valve with TCM and A/T Fluid Temper-

ature Sensor 2"

 .

NG

>> Repair or replace damaged parts.

Item name

Condition 

Display value

VHCL/S SE-MTR

During driving

Approximately matches the speed-
ometer reading.

SCIA2148E