Nissan Leaf. Manual - part 969

MWI

METER SYSTEM

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AANIA2882GB

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DIAGNOSIS AND REPAIR WORKFLOW (METER SYSTEM)

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW (METER SYSTEM)

Work flow

INFOID:0000000010122411

OVERALL SEQUENCE

DETAILED FLOW

1.

OBTAIN INFORMATION ABOUT SYMPTOM

Interview the customer to obtain as much information as possible about the conditions and environment under

which the malfunction occurred.

>> GO TO 2.

2.

CHECK SYMPTOM

• Check the symptom based on the information obtained from the customer.

• Check if any other malfunctions are present.

>> GO TO 3.

3.

CHECK CONSULT SELF-DIAGNOSIS RESULTS

Connect CONSULT and perform “self-diagnosis”. Refer to 

MWI-65, "DTC Index"

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AWNIA2375GB

MWI

DIAGNOSIS AND REPAIR WORKFLOW (METER SYSTEM)

MWI-81

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Are self-diagnosis results normal?

YES

>> GO TO 4.

NO

>> GO TO 5.

4.

NARROW DOWN MALFUNCTIONING PARTS BY SYMPTOM DIAGNOSIS

Perform symptom diagnosis and narrow down the malfunctioning parts.

>> GO TO 5.

5.

REPAIR OR REPLACE MALFUNCTIONING PARTS

Repair or replace malfunctioning parts.

NOTE:

If DTC is displayed, erase DTC after repairing or replacing malfunctioning parts.

>> GO TO 6.

6.

FINAL CHECK

Check that the warning buzzer in the combination meter operates normally.
Does it operate normally?

YES

>> Inspection End.

NO

>> GO TO 1.

MWI-82

< DTC/CIRCUIT DIAGNOSIS >

U1000 CAN COMM CIRCUIT

DTC/CIRCUIT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000010122412

CAN (Controller Area Network) is a serial communication system for real time application. It is an on-vehicle

multiplex communication system with high data communication speed and excellent error detectability. Many

electronic control units are equipped onto vehicles, and each control unit shares information and links with

other control units during operation (not independent). In CAN communication, control units are connected

with two communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with

less wiring. Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Signal Chart. Refer to 

LAN-37, "CAN COMMUNICATION SYSTEM : CAN Communica-

tion Signal Chart"

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DTC Logic

INFOID:0000000010122413

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000010122414

1.

PERFORM SELF DIAGNOSTIC RESULT

1. Turn power switch ON and wait for 2 seconds or more.

2. Check “Self Diagnostic Result” of “METER/M&A”. 
Is “CAN COMM CIRCUIT” displayed?

YES

>> Refer to 

LAN-17, "Trouble Diagnosis Flow Chart"

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NO

>> Refer to 

GI-53, "Intermittent Incident"

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DTC

Display contents of 

CONSULT

Diagnostic item is detected when...

Probable malfunction location

U1000

CAN COMM CIRCUIT
[U1000]

When combination meter is not transmitting or 
receiving CAN communication signal for 2 
seconds or more.

CAN communication system