Nissan Murano Z51. Manual - part 812

GI-46

< BASIC INSPECTION >

SERVICE INFORMATION FOR ELECTRICAL INCIDENT

INPUT-OUTPUT VOLTAGE CHART

• The voltage value is based on the body ground.

• *: If high resistance exists in the switch side circuit (caused by a single strand), terminal 1 does not detect battery voltage. Control unit

does not detect the switch is ON even if the switch does not turn ON. Therefore, the control unit does not supply power to light up the
lamp.

CASE 2

INPUT-OUTPUT VOLTAGE CHART

• The voltage value is based on the body ground.

• *: If high resistance exists in the switch side circuit (caused by a single strand), terminal 2 does not detect approx. 0 V. Control unit

does not detect the switch is ON even if the switch does not turn ON. Therefore, the control unit does not control ground to light up the
lamp.

Terminal No.

Description

Condition

Value (Approx.)

In case of high resistance such as single 
strand (V) *

+

−

Signal name

Input/

Output

1

Body 
ground

Switch

Input

Switch ON

Battery voltage

Lower than battery voltage Approx. 8 (Ex-
ample)

Switch OFF

0 V

Approx. 0

2

Body 
ground

Lamp

Output

Switch ON

Battery voltage

Approx. 0 (Inoperative lamp)

Switch OFF

0 V

Approx. 0

Terminal No.

Description

Condition

Value (Approx.)

In case of high resistance such as single 
strand (V) *

+

−

Signal name

Input/

Output

1

Body 
ground

Lamp

Output

Switch ON

0 V

Battery voltage (Inoperative lamp)

Switch OFF

Battery voltage

Battery voltage

2

Body 
ground

Switch

Input

Switch ON

0 V

Higher than 0 Approx. 4 (Example)

Switch OFF

5 V

Approx. 5

MGI035A

CONSULT-III/GST CHECKING SYSTEM

GI-47

< BASIC INSPECTION >

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CONSULT-III/GST CHECKING SYSTEM

Description

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• When CONSULT-III/GST is connected with a data link connector

(A) equipped on the vehicle side, it will communicate with the con-
trol unit equipped in the vehicle and then enable various kinds of
diagnostic tests.

• Refer to “CONSULT-III Software Operation Manual” for more infor-

mation.

CONSULT-III Function and System Application*1

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x: Applicable

*1: If GST application is equipped, functions in accordance with SAE J1979 and ISO 15031-5 can be used.

CONSULT-III/GST Data Link Connector (DLC) Circuit

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INSPECTION PROCEDURE

1

: Instrument lower panel LH

JPAIA0236ZZ

Diagnostic test mode

Function

ENGINE

TRANSMISS

ION

AIR B

A

G

MET

E

R/M

&

A

BC

M

AUT

O

 DRIVE 

POS.

ABS

IPDM E/R

ALL MODE 

A

W

D/4WD

MUL

T

I A

V

AUT

O

 BACK

 DOOR

HV

AC

AI

R

 PRESSURE 

MONIT

O

R

Work Support

This mode enables a technician to adjust some de-
vices faster and more accurately.

x

x

-

-

x

x

x

-

-

-

-

x

x

Self Diagnostic Results

Retrieve DTC from ECU and display diagnostic 
items.

x

x

x

x

x

x

x

x

x

x

x

x

x

Data Monitor

Monitor the input/output signal of the control unit in 
real time.

x

x

-

x

x

x

x

x

x

x

x

x

x

CAN Diagnosis

This mode displays a network diagnosis result 
about CAN by a diagram.

x

x

x

x

x

x

x

x

x

x

x

x

-

CAN Diagnosis Support 
Monitor

It monitors the status of CAN communication.

x

x

-

x

x

x

x

x

x

x

x

x

-

Active Test

Send the drive signal from CONSULT-III to the ac-
tuator. The operation check can be performed.

x

-

-

-

x

x

x

x

x

-

-

x

x

DTC & SRT confirmation

The status of system monitoring tests and the self-
diagnosis status/result can be confirmed.

x

-

-

-

-

-

-

-

-

-

-

-

-

ECU Identification 

Display the ECU identification number (part num-
ber etc.) of the selected system.

x

x

x

-

x

x

x

x

x

x

x

x

-

Function Test

This mode can show results of self-diagnosis of 
ECU with either “OK” or “NG”. For engine, more 
practical tests regarding sensors/switches and/or 
actuators are available.

x

x

x

-

-

-

x

-

-

-

-

-

-

Configuration

Function to READ/WRITE vehicle configuration.

-

-

-

-

x

-

-

-

-

-

-

-

-

Special Function 

Other results or histories, etc. that are recorded in 
ECU are displayed.

-

x

x

x

-

-

-

-

-

-

-

-

-

GI-48

< BASIC INSPECTION >

CONSULT-III/GST CHECKING SYSTEM

If the CONSULT-III/GST 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-III access to other sys-
tems.
If the GST cannot operate properly, check the circuit based on the information of SAE J1962 and ISO 15031-
3.

Symptom

Check item

CONSULT-III/GST cannot ac-
cess any system.

• CONSULT-III/GST DLC power supply circuit (Terminal 8 and 16) and ground circuit (Terminal 4 and 

5) 

CONSULT-III cannot access in-
dividual system. (Other sys-
tems can be accessed.)

• Power supply and ground circuit for the control unit of the system (For detailed circuit, refer to wiring 

diagram for each system.)

• Open or short circuit between the system and CONSULT-III DLC (For detailed circuit, refer to wiring 

diagram for each system.)

• Open or short circuit CAN communication line. Refer to 

LAN-17, "Trouble Diagnosis Flow Chart"

.

CONSULT-III/GST CHECKING SYSTEM

GI-49

< BASIC INSPECTION >

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Wiring Diagram - CONSULT-III/GST CHECKING SYSTEM -

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JCAWM0208GB