Nissan Frontier D22. Instruction — part 55

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

AT-189

[RE4R01A]

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Malfunction Indicator Lamp (MIL)

ECS007LR

1.

The malfunction indicator lamp will light up when the ignition
switch is turned ON without the engine running. This is for
checking the lamp.

●

If the malfunction indicator lamp does not light up, refer to

DI-

25, "WARNING LAMPS"

or

EC-634, "Malfunction Indicator

Lamp (MIL)"

(VG33E only) or

EC-1235, "Malfunction Indica-

tor Lamp (MIL)"

(VG33ER only).

2.

When the engine is started, the malfunction indicator lamp
should go off.
If the lamp remains on, the on board diagnostic system has
detected an emission-related (OBD-II) malfunction. For detail,
refer to

EC-619, "ON BOARD DIAGNOSTIC (OBD) SYSTEM"

(VG33E only) or

EC-1220, "ON BOARD

DIAGNOSTIC (OBD) SYSTEM"

(VG33ER only).

CONSULT-II

ECS007LS

After performing “SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)” [Refer to

AT-189, "SELF-DIAG-

NOSTIC PROCEDURE (WITH CONSULT-II)"

], place check marks for results on the Diagnostic Worksheet.

Refer to

AT-205, "DIAGNOSTIC WORKSHEET"

. Reference pages are provided following the items.

NOTICE:
1.

The CONSULT-II electrically displays shift timing and lock-up timing (that is, operation timing of each sole-
noid).
Check for time difference between actual shift timing and the CONSULT-II display. If the difference is
noticeable, mechanical parts (except solenoids, sensors, etc.) may be malfunctioning. Check mechanical
parts using applicable diagnostic procedures.

2.

Shift schedule (which implies gear position) displayed on CONSULT-II and that indicated in Service Man-
ual may differ slightly. This occurs because of the following reasons:

–

Actual shift schedule has more or less tolerance or allowance,

–

Shift schedule indicated in Instruction refers to the point where shifts start, and

–

Gear position displayed on CONSULT-II indicates the point where shifts are completed.

3.

Shift solenoid valve “A” or “B” is displayed on CONSULT-II at the start of shifting. Gear position is dis-
played upon completion of shifting (which is computed by TCM).

4.

Additional CONSULT-II information can be found in the Operation Instruction supplied with the CONSULT-II
unit.

SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)

1.

Turn on CONSULT-II and touch “ENGINE” for OBD-II detected
items or touch “A/T” for TCM self-diagnosis.
If A/T is not displayed, check TCM power supply and ground cir-
cuit. Refer to

AT-246, "Wiring Diagram — AT — MAIN"

. If result

is NG, refer to

PG-9, "POWER SUPPLY ROUTING"

.

SAT964I

SAT014K

AT-190

[RE4R01A]

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

2.

Touch “SELF-DIAG RESULTS”.
Display shows malfunction experienced since the last erasing
operation.
CONSULT-II performs REAL-TIME SELF-DIAGNOSIS.
Also, any malfunction detected while in this mode will be dis-
played at real time.

SELF-DIAGNOSTIC RESULT TEST MODE

SAT987J

Detected items
(Screen terms for CONSULT-II, “SELF-
DIAG RESULTS” test mode)

Malfunction is detected when ...

TCM self-diagnosis

OBD-II (DTC)

Available by O/D OFF

indicator lamp or “A/T”

on CONSULT-II

Available by malfunc-

tion indicator lamp*2,

“ENGINE” on CON-

SULT-II or GST

“A/T”

“ENGINE”

PNP position switch circuit

●

TCM does not receive the correct
voltage signal (based on the gear
position) from the switch.

—

P0705

—

PNP SW/CIRC

Revolution sensor

●

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

X

P0720

VHCL SPEED
SEN·A/T

VEH SPD SEN/CIR
AT

Vehicle speed sensor (Meter)

●

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

X

—

VHCL SPEED
SEN·MTR

—

A/T 1st gear function

●

A/T cannot be shifted to the 1st
gear position even if electrical cir-
cuit is good.

—

P0731*1

—

A/T 1ST GR FNCTN

A/T 2nd gear function

●

A/T cannot be shifted to the 2nd
gear position even if electrical cir-
cuit is good.

—

P0732*1

—

A/T 2ND GR FNCTN

A/T 3rd gear function

●

A/T cannot be shifted to the 3rd
gear position even if electrical cir-
cuit is good.

—

P0733*1

—

A/T 3RD GR FNCTN

A/T 4th gear function

●

A/T cannot be shifted to the 4th
gear position even if electrical cir-
cuit is good.

—

P0734*1

—

A/T 4TH GR FNCTN

A/T TCC S/V function (lock-up)

●

A/T cannot perform lock-up even if
electrical circuit is good.

—

P0744*1

—

A/T TCC S/V
FNCTN

Shift solenoid valve A

●

TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.

X

P0750

SHIFT SOLENOID/V
A

SFT SOL A/CIRC

Shift solenoid valve B

●

TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.

X

P0755

SHIFT SOLENOID/V
B

SFT SOL B/CIRC

Overrun clutch solenoid valve

●

TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.

X

P1760

OVERRUN
CLUTCH S/V

O/R CLUCH SOL/
CIRC

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

AT-191

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X: Applicable
—: Not applicable

*1: These malfunctions cannot be displayed by MIL

if another malfunction is assigned to MIL.

*2: Refer to

EC-634, "Malfunction Indicator Lamp (MIL)"

(VG33E only) or

EC-1235, "Malfunction Indicator Lamp (MIL)"

(VG33ER only).

T/C clutch solenoid valve

●

TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.

X

P0740

T/C CLUTCH SOL/V

TCC SOLENOID/
CIRC

Line pressure solenoid valve

●

TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.

X

P0745

LINE PRESSURE S/
V

L/PRESS SOL/CIRC

Throttle position sensor
Throttle position switch

●

TCM receives an excessively low
or high voltage from the sensor.

X

P1705

THROTTLE POSI
SEN

TP SEN/CIRC A/T

Engine speed signal

●

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

X

P0725

ENGINE SPEED SIG

A/T fluid temperature sensor

●

TCM receives an excessively low
or high voltage from the sensor.

X

P0710

BATT/FLUID TEMP
SEN

ATF TEMP SEN/
CIRC

Turbine revolution sensor (VG33ER only)

●

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

X

—

TURBINE REV

—

TCM (RAM)

●

TCM memory (RAM) is malfunc-
tioning.

—

—

CONTROL UNIT
(RAM)

—

TCM (ROM)

●

TCM memory (ROM) is malfunc-
tioning.

—

—

CONTROL UNIT
(ROM)

—

TCM (EEP ROM)

●

TCM memory (EEP ROM) is mal-
functioning.

—

—

CONT UNIT (EEP
ROM)

—

Initial start

●

This is not a malfunction message
(Whenever shutting off a power
supply to the control unit, this
message appears on the screen).

X

—

INITIAL START

—

No failure
(NO DTC IS DETECTED FURTHER TEST-
ING MAY BE REQUIRED**)

●

No failure has been detected.

X

X

Detected items
(Screen terms for CONSULT-II, “SELF-
DIAG RESULTS” test mode)

Malfunction is detected when ...

TCM self-diagnosis

OBD-II (DTC)

Available by O/D OFF

indicator lamp or “A/T”

on CONSULT-II

Available by malfunc-

tion indicator lamp*2,

“ENGINE” on CON-

SULT-II or GST

“A/T”

“ENGINE”

AT-192

[RE4R01A]

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

DATA MONITOR MODE (A/T)

Item

Display

Monitor item

Description

Remarks

TCM input

signals

Main sig-

nals

Vehicle speed sensor 1 (A/
T)
(Revolution sensor)

VHCL/S SE·A/T
[km/h] or [mph]

X

—

●

Vehicle speed computed
from signal of revolution
sensor is displayed.

When racing engine in P or
N position with vehicle sta-
tionary, CONSULT-II data
may not indicate 0 km/h (0
mph).

Vehicle speed sensor 2
(Meter)

VHCL/S
SE·MTR
[km/h] or [mph]

X

—

●

Vehicle speed computed
from signal of vehicle
speed sensor is dis-
played.

Vehicle speed display may
not be accurate under
approx. 10 km/h (6 mph). It
may not indicate 0 km/h (0
mph) when vehicle is sta-
tionary.

Throttle position sensor

THRTL POS
SEN
[V]

X

—

●

Throttle position sensor
signal voltage is dis-
played.

A/T fluid temperature sen-
sor

FLUID TEMP SE
[V]

X

—

●

A/T fluid temperature
sensor signal voltage is
displayed.

●

Signal voltage lowers as
fluid temperature rises.

Battery voltage

BATTERY VOLT
[V]

X

—

●

Source voltage of TCM is
displayed.

Engine speed

ENGINE SPEED
[rpm]

X

X

●

Engine speed, computed
from engine speed signal,
is displayed.

Engine speed display may
not be accurate under
approx. 800 rpm. It may not
indicate 0 rpm even when
engine is not running.

Turbine revolution sensor
(VG33ER only)

TURBINE REV
[rpm]

X

—

●

Turbine revolution com-
puted from signal of tur-
bine revolution sensor is
displayed.

Error may occur under
approx. 800 rpm and will
not indicate 0 rpm even if
engine is not running.

Overdrive control switch

OVERDRIVE
SW
[ON/OFF]

X

—

●

ON/OFF state computed
from signal of overdrive
control SW is displayed.

PN position switch

PN POSI SW
[ON/OFF]

X

—

●

ON/OFF state computed
from signal of PN position
SW is displayed.

R position switch

R POSITION SW
[ON/OFF]

X

—

●

ON/OFF state computed
from signal of R position
SW is displayed.

D position switch

D POSITION SW
[ON/OFF]

X

—

●

ON/OFF state computed
from signal of D position
SW is displayed.

2 position switch

2 POSITION SW
[ON/OFF]

X

—

●

ON/OFF status, com-
puted from signal of 2
position SW, is displayed.

1 position switch

1 POSITION SW
[ON/OFF]

X

—

●

ON/OFF status, com-
puted from signal of 1
position SW, is displayed.

ASCD cruise signal

ASCD - CRUISE
[ON/OFF]

X

—

●

Status of ASCD cruise
signal is displayed.
ON ... Cruising state
OFF ... Normal running
state

●

This is displayed even
when no ASCD is
mounted.