Nissan Frontier D22. Manual - part 55

 

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Nissan Frontier D22. Manual - 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 Service Manual 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 Manual 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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AT

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.

 

 

 

 

 

 

 

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