Infiniti Q45. Manual — part 598

CONSULT-II CHECKING SYSTEM

GI-37

C

D

E

F

G

H

I

J

K

L

M

B

GI

4.

Touch necessary system on "SELECT SYSTEM" screen.
If necessary system is not indicated, check power supply and
ground of system control unit. If it is normal, refer to

GI-37,

"CONSULT-II Data Link Connector (DLC) Circuit"

.

5.

Select the desired part to be diagnosed on the "SELECT DIAG
MODE" screen.

CONSULT-II Data Link Connector (DLC) Circuit

NAS00047

INSPECTION PROCEDURE

If the CONSULT-II cannot diagnose the system properly, check the following items.

NOTE:
The DDL1 and DDL2 circuits from DLC pins 12, 13, 14 and 15 may be connected to more than one system. A
short in a DDL circuit connected to a control unit in one system may affect CONSULT-II access to other sys-
tems.

BCIA0030E

BCIA0031E

Symptom

Check item

CONSULT-II cannot access
any system.

●

CONSULT-II DLC power supply circuit (Terminal 8) and ground circuit (Terminal 4) (For detailed
circuit, refer to “MIL & Data Link Connectors Wiring Diagram” in EC section.)

●

CONSULT-II DLC cable and CONSULT-II CONVERTER.

CONSULT-II cannot access
individual system. (Other sys-
tems can be accessed.)

●

CONSULT-II program card (Check the appropriate CONSULT-II program card for the system.
Refer to "Checking Equipment".)

●

Power supply and ground circuit for the control unit of the system (For detailed circuit, refer to wir-
ing diagram for each system.)

●

Open or short circuit between the system and CONSULT-II DLC (For detailed circuit, refer to wiring
diagram for each system.)

GI-38

CONSULT-II CHECKING SYSTEM

CIRCUIT DIAGRAM

TAWM0063E

LIFTING POINT

GI-39

C

D

E

F

G

H

I

J

K

L

M

B

GI

LIFTING POINT

PFP:00000

Commercial Service Tools

NAS00048

CAUTION:

●

Every time the vehicle is lifted up, maintain the complete vehicle curb condition.

●

Since the vehicle's center of gravity changes when removing main parts on the front side (engine,
transmission, suspension etc.), support a jack up point on the rear side garage jack with a mission
jack or equivalent.

●

Since the vehicle's center of gravity changes when removing main parts on the rear side (rear axle,
suspension, etc.), support a jack up point on the front side garage jack with a mission jack or
equivalent.

●

Be careful not to smash or do not do anything that would affect piping parts.

Garage Jack and Safety Stand

NAS00049

WARNING:

●

Park the vehicle on a level surface when using the jack. Make sure to avoid damaging pipes,
tubes, etc. under the vehicle.

●

Never get under the vehicle while it is supported only by the jack. Always use safety stands when
you have to get under the vehicle.

Tool name

Description

Board on attachment

Safety stand attachment

S-NT001

S-NT002

GI-40

LIFTING POINT

●

Place wheel chocks at both front and back of the wheels on the ground.

2-pole Lift

NAS0004A

WARNING:

When lifting the vehicle, open the lift arms as wide as possible and ensure that the front and rear of
the vehicle are well balanced.
When setting the lift arm, do not allow the arm to contact the brake tubes, brake cable, fuel lines and
sill spoiler.

PIIB8440E

SAIA0250E