Infiniti I35 (A33). Manual — part 31

SAT014K

Diagnostic Trouble Code (DTC) Confirmation
Procedure

NHAT0209

SAT860K

SAT014K

SEF949Y

CAUTION:

I

Always drive vehicle at a safe speed.

I

Be careful not to rev engine into the red zone on the
tachometer.

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

NHAT0209S01

1)

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

2)

Drive vehicle and check for an increase of “VHCL/S SE·MTR”
value.
If the check result is NG, go to “DIAGNOSTIC PROCEDURE”,
AT-207.
If the check result is OK, go to following step.

3)

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

4)

Start engine and maintain the following conditions for at least
5 consecutive seconds.
VHCL SPEED SE: 30 km/h (19 MPH) or more
THRTL POS SEN: More than 1.2V
Selector lever: D position
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
If the check result is NG, go to “DIAGNOSTIC PROCEDURE”,
AT-123.
If the check result is OK, go to following step.

5)

Maintain the following conditions for at least 5 consecutive
seconds.
CMPS·RPM (REF): 3,500 rpm or more
THRTL POS SEN: More than 1.2V
Selector lever: D position
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.

WITH GST

NHAT0209S02

Follow the procedure “With CONSULT-II”.

GI

MA

EM

LC

EC

FE

AX

SU

BR

ST

RS

BT

HA

SC

EL

IDX

DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)

Diagnostic Trouble Code (DTC) Confirmation Procedure

AT-121

Wiring Diagram — AT — VSSA/T

NHAT0041

MAT474B

DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)

Wiring Diagram — AT — VSSA/T

AT-122

Diagnostic Procedure

NHAT0042

1

CHECK INPUT SIGNAL (With CONSULT-II)

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·A/T” while driving.

Check the value changes according to driving speed.

SAT614J

OK or NG

OK

©

GO TO 3.

NG

©

GO TO 2.

2

CHECK REVOLUTION SENSOR (With CONSULT-II)

With CONSULT-II

1. Start engine.

MTBL1182

I

Harness for short or open between TCM, ECM and revolution sensor

I

Harness for short or open between ignition switch and revolution sensor

OK or NG

OK

©

GO TO 3.

NG

©

Repair or replace damaged parts.

3

CHECK DTC

Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-121.

OK or NG

OK

©

INSPECTION END

NG

©

GO TO 4.

GI

MA

EM

LC

EC

FE

AX

SU

BR

ST

RS

BT

HA

SC

EL

IDX

DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)

Diagnostic Procedure

AT-123

4

CHECK 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.

DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)

Diagnostic Procedure (Cont’d)

AT-124