Infiniti F50. Manual - part 65

DTC P1705 THROTTLE POSITION SENSOR

AT-145

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2. 

CHECK DTC WITH TCM

 With CONSULT-II

1.

Turn ignition switch to “ON” position. (Do not start engine.)

2.

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

3.

Depress accelerator pedal and read out the value of “ACCLE
POS” and “THROTTLE POSI”.
Check engine speed changes according to throttle position. 

4.

Select “SELF-DIAG RESULTS” mode for “ENGINE” with CON-
SULT-II. Refer to 

EC-112, "SELF-DIAG RESULTS MODE"

 .

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace damaged parts.

3. 

CHECK DTC

Perform “DTC Confirmation Procedure”. Refer to 

AT-144, "DTC Confirmation Procedure"

 .

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 4.

4. 

PERFORM TCM INSPECTION

1.

Perform TCM input/output signal inspection.

2.

If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

OK or NG

OK

>> INSPECTION END

NG

>> Repair or replace damaged parts.

PCIA0070E

AT-146

DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT

DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT

PFP:31940

Description

ECS0085P

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

CONSULT-II Reference Value

ECS0085Q

On Board Diagnosis Logic

ECS0085R

●

This is an OBD-II self-diagnostic item.

●

Diagnostic trouble code “ATF TEMP SEN/CIRC” with CONSULT-II or P1710 (A/T), P0710 (ENGINE) with-
out CONSULT-II is detected when TCM receives an excessively low or high voltage from the sensor.

Possible Cause

ECS0085S

●

Harness or connectors
(The sensor circuit is open or shorted.)

●

A/T fluid temperature sensors 1, 2

DTC Confirmation Procedure

ECS0085T

CAUTION:

Always drive vehicle at a safe speed.

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

 WITH CONSULT-II

1.

Turn ignition switch to “ON” position. (Do not start engine.)

2.

Select “DATA MONITOR” mode for “ENGINE” with CONSULT-II.

3.

Start engine and maintain the following conditions for at least 10
minutes (Total). (It is not necessary to maintain continuously.)
VHCL SPEED SE: 10 km/h (6 MPH) or more
THRTL POS SEN: More than 1.0/8
Selector lever: “D” position

4.

If DTC is detected, go to 

AT-148, "Diagnostic Procedure"

 .

 WITH GST

Follow the procedure “With CONSULT-II”.

Item name

Condition 

Display value (Approx.) (V)

Fluid temperature sensor 1

0

°

C (32

°

F) - 20

°

C (68

°

F) - 80

°

C (176

°

F)

2.2 - 1.8 - 0.6

Fluid temperature sensor 2

2.2 - 1.7 - 0.45

SAT014K

DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT

AT-147

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Wiring Diagram — AT — FTS

ECS0085U

TCM terminals and data are reference value. Measured between each terminal and ground.

TCWM0011E

Terminal   

No.

Wire 

color

Item

Condition

Data (Approx.)

8

B/R

Fluid temperature 
sensor 1

IGN ON

When ATF temperature 0

°

C (32

°

F)

2.2V

When ATF temperature 20

°

C (68

°

F)

1.8V

When ATF temperature 80

°

C (176

°

F)

0.6V

15

B/W

SEL4

–

–

–

17

Y/B

Fluid temperature 
sensor 2

IGN ON

When ATF temperature about 0

°

C (32

°

F)

2.2V

When ATF temperature about 20

°

C (68

°

F)

1.7V

When ATF temperature about 80

°

C (176

°

F)

0.45V

AT-148

DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT

Diagnostic Procedure

ECS0085V

1. 

CHECK INPUT SIGNALS (WITH CONSULT-II)

 With CONSULT-II

1.

Start engine.

2.

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

3.

Read out the value of “ATF TEMP SE 1” or “ATF TEMP SE 2”.

OK or NG

OK >> GO 

TO 

7.

NG

>> GO TO 3.

2. 

CHECK INPUT SIGNALS (WITHOUT CONSULT-II)

 Without CONSULT-II

1.

Start engine.

2.

Check voltage between TCM connector and ground while warming up A/T. Refer to 

AT-147, "Wiring Dia-

gram — AT — FTS"

 .

3.

Turn ignition switch to “OFF” position.

4.

Disconnect the TCM connector.

5.

Check if there is continuity between the connector terminal and ground.

OK or NG

OK >> GO 

TO 

7.

NG

>> GO TO 3.

Item name

Condition 

°

C (

°

F)

Display value (Approx.) V

Fluid temperature 
sensor 1

0 (32) - 20 (68) - 80 (176)

2.2 - 1.8 - 0.6

Fluid temperature 
sensor 2

2.2 - 1.7 - 0.45

PCIA0039E

Name

Connector 

No.

Terminal No.

Temperature 

°

C (

°

F)

Voltage (V) 

(Approx.)

Fluid tempera-
ture sensor 1

F103

8 (B/R) - 5 (B), 14 

(B), 24 (B) or 46 (B) 

(ground)

0 (32)

2.2

20 (68)

1.8

80 (176)

0.6

Fluid tempera-
ture sensor 2

17 (Y/B) - 5 (B), 14 

(B), 24 (B) or 46 (B) 

(ground)

0 (32)

2.2

20 (68)

1.7

80 (176)

0.45

SCIA1162E