Nissan March K13. Manual - part 348

GI-40

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SERVICE INFORMATION FOR ELECTRICAL INCIDENT

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

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-41

< 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

If the CONSULT-III/GST cannot diagnose the system properly, check the following items.

1

: Instrument lower panel LH

JPAIA0768ZZ

Diagnostic test mode

Function

ENGINE

AI

R BAG

METER/

M&A

BCM

IPDM

 E/R

EP

S

Work support

This mode enables a technician to adjust some devices faster and 
more accurately.

x

-

-

x

-

-

Self  Diagnostic  Results

Retrieve  DTC  from  ECU  and  display  diagnostic  items.

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

CAN diagnosis

This mode displays a network diagnosis result about CAN by a dia-
gram.

x

-

x

x

x

x

CAN diagnosis support moni-
tor

It  monitors  the  status  of  CAN  communication.

x

-

x

x

x

x

Active test

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

x

-

-

x

x

-

DTC & SRT confirmation

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

x

-

-

-

-

-

ECU Identification

Display the ECU identification number (part number etc.) of the select-
ed system.

x

x

-

x

x

x

Function test

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

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

-

-

-

GI-42

< BASIC INSPECTION >

CONSULT-III/GST CHECKING SYSTEM

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-14, "Trouble Diagnosis Flow Chart"

.

CONSULT-III/GST CHECKING SYSTEM

GI-43

< BASIC INSPECTION >

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Wiring Diagram - CONSULT-III/GST CHECKING SYSTEM -

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JCAWM0228GB