Nissan Frontier D22. Manual — part 93

DTC VEHICLE SPEED SENSOR·MTR

AT-341

[RE4R01A]

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DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE

CAUTION:

●

Always drive vehicle at a safe speed.

●

If conducting this “DTC CONFIRMATION PROCEDURE”
again, always turn ignition switch OFF and wait at least 5
seconds before continuing.

After the repair, perform the following procedure to confirm the malfunction is eliminated.

With CONSULT-II

1.

Turn ignition switch ON and select “DATA MONITOR” mode for “A/T” with CONSULT-II.

2.

Start engine and accelerate vehicle from 0 to 25 km/h (0 to 6
MPH).

Without CONSULT-II

●

Follow the procedure “With CONSULT-II”.

SAT014K

SAT971J

LAT436

AT-342

[RE4R01A]

DTC VEHICLE SPEED SENSOR·MTR

Wiring Diagram — AT — VSSMTR

ECS007NW

WCWA0156E

DTC VEHICLE SPEED SENSOR·MTR

AT-343

[RE4R01A]

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Diagnostic Procedure

ECS007NX

1.

CHECK INPUT SIGNAL.

With CONSULT-II

1.

Start engine.

2.

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

3.

Read out the value of “VHCL/S SE·MTR” while driving.
Check the value changes according to driving speed.

Without CONSULT-II

1.

Start engine.

2.

Check voltage between TCM harness connector M78 terminal
40 and ground while driving at 2 to 3 km/h (1 to 2 MPH) for 1 m
(3 ft) or more.

Does battery voltage vary between less than 1V and more than
4.5V?

Yes

>> GO TO 2.

No

>> Check the following items:

●

Vehicle speed sensor and ground circuit for vehicle
speed sensor. Refer to

DI-3, "METERS AND

GAUGES"

.

●

Harness for short or open between TCM and vehicle
speed sensor (Main harness)

2.

CHECK DTC

Perform

AT-341, "DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE"

.

OK or NG

OK

>> INSPECTION END.

NG

>> 1. Perform TCM input/output signal inspection.

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

SAT614J

AAT504A

AT-344

[RE4R01A]

DTC TURBINE REVOLUTION SENSOR (VG33ER ONLY)

DTC TURBINE REVOLUTION SENSOR (VG33ER ONLY)

PFP:31935

Description

ECS007NY

The turbine revolution sensor detects input shaft rpm (revolutions
per minute). It is located on the input side of the automatic transmis-
sion. The vehicle speed sensor A/T (Revolution sensor) is located on
the output side of the automatic transmission. With the two sensors,
input and output shaft rpms are accurately detected. The result is
optimal shift timing during deceleration and improved shifting.

TCM TERMINALS AND REFERENCE VALUE

Remarks: Specification data are reference values.

ON BOARD DIAGNOSIS LOGIC

SAT136K

Termi-

nal No.

Wire color

Item

Condition

Judgement

standard

(Approx.)

38

Y

Turbine revolu-
tion sensor
(Measure in AC
range)

When engine is running at 1,000 rpm

1.2V
Voltage rises
gradually in
response to
engine speed.

42

BR

Throttle position
sensor (Ground)

—

0V

Diagnostic trouble code

Malfunction is detected when ...

Check item (Possible cause)

: TURBINE REV

TCM does not receive the proper voltage
signal from the sensor.

●

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

●

Turbine revolution sensor

: 10th judgement flicker