Infiniti M35/M45 Y50. Manual - part 707

DTC P1715 INPUT SPEED SENSOR (TURBINE REVOLUTION SENSOR)

EC-1301

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DTC P1715 INPUT SPEED SENSOR (TURBINE REVOLUTION SENSOR)

PFP:31935

Description

NBS005NA

ECM receives turbine revolution sensor signal from TCM through CAN communication line. ECM uses this
signal for engine control.

CONSULT-II Reference Value in Data Monitor Mode

NBS005NB

Specification data are reference values.

On Board Diagnosis Logic

NBS005NC

NOTE:

●

If DTC P1715 is displayed with DTC U1000, U1001 first perform the trouble diagnosis for DTC
U1000, U1001. Refer to 

EC-865, "DTC U1000, U1001 CAN COMMUNICATION LINE"

 .

●

If DTC P1715 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010.
Refer to 

EC-868, "DTC U1010 CAN COMMUNICATION"

 .

●

If DTC P1715 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605.
Refer to 

EC-1190, "DTC P0605 ECM"

 .

●

If DTC P1715 is displayed with DTC P0335, first perform the trouble diagnosis for DTC P0335.
Refer to 

EC-1075, "DTC P0335 CKP SENSOR (POS)"

 .

●

If DTC P1715 is displayed with DTC P0340, first perform the trouble diagnosis for DTC P0340.
Refer to 

EC-1082, "DTC P0340 CAMSHAFT POSITION (CMP) SENSOR (PHASE)"

 .

The MIL will not lights up for this diagnosis.

Diagnostic Procedure

NBS005ND

1. 

CHECK DTC WITH TCM

Check DTC with TCM. Refer to 

AT-40, "ON BOARD DIAGNOSTIC (OBD) SYSTEM"

 .

OK or NG

OK

>> GO TO 2.

NG

>> Perform trouble shooting relevant to DTC indicated.

2. 

REPLACE TCM

Replace TCM. Refer to 

AT-44, "TROUBLE DIAGNOSIS"

 .

>> INSPECTION END

MONITOR ITEM

CONDITION

SPECIFICATION

I/P PULLY SPD

●

Vehicle speed: More than 20 km/h (12MPH)

Almost the same speed as the 
tachometer indication

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1715
1715

Input speed sensor
(Turbine revolution sensor)
(TCM output)

Turbine revolution sensor signal is different 
from the theoretical value calculated by 
ECM from revolution sensor signal and 
engine rpm signal.

●

Harness or connectors
(The CAN communication line is open or 
shorted)

●

Harness or connectors
(Turbine revolution sensor circuit is open or 
shorted)

●

TCM

EC-1302

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DTC P1800 VIAS CONTROL SOLENOID VALVE

DTC P1800 VIAS CONTROL SOLENOID VALVE

PFP:14955

Component Description

NBS005NE

The VIAS control solenoid valve (1) cuts the intake manifold vacuum
signal for power valve actuator. It responds to ON/OFF signals from
the ECM. When the solenoid is off, the vacuum signal from the
intake manifold is cut. When the ECM sends an ON signal the coil
pulls the plunger downward and feeds the vacuum signal to the
power valve actuator.

●

: Vehicle front

CONSULT-II Reference Value in Data Monitor Mode

NBS005NF

Specification data are reference values.

On Board Diagnosis Logic

NBS005NG

The MIL will not light up for this self-diagnosis.

DTC Confirmation Procedure

NBS005NH

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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is between 11V at idle.

 WITH CONSULT-II

1.

Turn ignition switch ON.

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Start engine and let it idle for at least 5 seconds.

4.

If 1st trip DTC is detected, go to 

EC-1304, "Diagnostic Proce-

dure"

 .

 WITH GST

Follow the procedure “WITH CONSULT-II” above.

PBIB2694E

MONITOR ITEM

CONDITION

SPECIFICATION

VIAS S/V

●

Selector lever: P or N

ON

●

Engine speed: More than 5,000 rpm

●

Selector lever: Except P or N

●

Engine speed: Less than 5,000 rpm

OFF

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1800
1800

VIAS control solenoid valve 
circuit 

An excessively low or high voltage signal is 
sent to ECM through the valve

●

Harness or connectors
(The solenoid valve circuit is open or 
shorted.)

●

VIAS control solenoid valve

SEF058Y

DTC P1800 VIAS CONTROL SOLENOID VALVE

EC-1303

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Wiring Diagram

NBS005NI

TBWT1053E

EC-1304

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DTC P1800 VIAS CONTROL SOLENOID VALVE

Specification data are reference values and are measured between each terminal and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

Diagnostic Procedure

NBS005NJ

1. 

CHECK VIAS CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect VIAS control solenoid (1) valve harness connector.

–

: Vehicle front

3.

Turn ignition switch ON.

4.

Check voltage between terminal 1 and ground with CONSULT-II
or tester.

OK or NG

OK

>> GO TO 3.

NG

>> GO TO 2.

TER-

MINAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

29

V

VIAS control solenoid valve

[Engine is running]

●

Selector lever: P or N

0 - 1.0V

[Engine is running]

●

Selector lever: D

●

Engine speed: Below 5,000 rpm

BATTERY VOLTAGE
(11 - 14V)

[Engine is running]

●

Engine speed: Above 5,000 rpm

0 - 1.0V

111

SB

ECM relay
(Self shut-off)

[Engine is running]
[Ignition switch: OFF]

●

For a few seconds after turning ignition 
switch OFF

0 - 1.5V

[Ignition switch: OFF]

●

More than a few seconds after turning igni-
tion switch OFF

BATTERY VOLTAGE
(11 - 14V)

119

120

R
R

Power supply for ECM

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14V)

PBIB2694E

Voltage: Battery voltage

PBIB0173E