Nissan X-Trail 32. Manual — part 1609
MWI-118
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORKFLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work flow
INFOID:0000000010715003
OVERALL SEQUENCE
• Reference 1···
MWI-84, "On Board Diagnosis Function"
• Reference 2···
.
• Reference 3···
MWI-134, "Diagnosis Procedure"
• Reference 4···
MWI-135, "Component Inspection"
.
• Reference 5···
MWI-129, "COMBINATION METER : Diagnosis Procedure"
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.
JSNIA4491GB
MWI
DIAGNOSIS AND REPAIR WORKFLOW
MWI-119
< BASIC INSPECTION >
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2.
CHECK SYMPTOM
• Check the symptom based on the information obtained from the customer.
• Check that any other malfunctions are present.
>> GO TO 3.
3.
CHECK ON BOARD DIAGNOSIS OPERATION
Check that the on board diagnosis function operates. Refer to
MWI-84, "On Board Diagnosis Function"
.
Does the on board diagnosis function operate normally?
YES
>> GO TO 4.
NO
>> GO TO 6.
4.
CHECK CONSULT SELF-DIAGNOSIS RESULTS
1.
Connect CONSULT and perform self-diagnosis. Refer to
2.
When DTC is detected, follow the instructions below:
-
Record DTC and Freeze Frame Data.
Are self-diagnosis results normal?
YES
>> GO TO 5.
NO
>> GO TO 10.
5.
NARROW DOWN THE MALFUNCTIONING PARTS BY SYMPTOM DIAGNOSIS
Perform symptom diagnosis and narrow down the malfunctioning parts.
>> GO TO 10.
6.
CHECK METER CONTROL SWITCH SIGNAL CIRCUIT
Check meter control switch signal circuit. Refer to
MWI-134, "Diagnosis Procedure"
Is inspection result OK?
YES
>> GO TO 7.
NO
>> GO TO 10.
7.
CHECK METER CONTROL SWITCH
Check meter control switch. Refer to
MWI-135, "Component Inspection"
.
Is inspection result OK?
YES
>> GO TO 8.
NO
>> GO TO 10.
8.
CHECK COMBINATION METER POWER SUPPLY AND GROUND CIRCUITS
Check combination meter power supply and ground circuits. Refer to
.
Is inspection result OK?
YES
>> GO TO 9.
NO
>> GO TO 10.
9.
REPLACE COMBINATION METER
Replace combination meter.
>> GO TO 11.
10.
REPAIR OR REPLACE MALFUNCTIONING PARTS
Repair or replace the malfunctioning parts.
NOTE:
If DTC is displayed, erase DTC after repair or replace malfunctioning parts.
>> GO TO 11.
MWI-120
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORKFLOW
11.
FINAL CHECK
Check that the combination meter operates normally.
Do they operate normally?
YES
>> INSPECTION END
NO
>> GO TO 1.
MWI
U1000 CAN COMM CIRCUIT
MWI-121
< DTC/CIRCUIT DIAGNOSIS >
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DTC/CIRCUIT DIAGNOSIS
U1000 CAN COMM CIRCUIT
DTC Description
INFOID:0000000010715004
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-41, "CAN COMMUNICATION SYSTEM : CAN Communica-
DTC DETECTION LOGIC
POSSIBLE CAUSE
CAN communication system
FAIL-SAFE
The combination meter activates the fail-safe control if CAN communication with each unit is malfunctioning.
Refer to
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition 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
MWI-121, "Diagnosis Procedure"
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010715005
1.
PERFORM DTC CONFIRMATION PROCEDURE AGAIN
1.
Turn ignition switch ON.
2.
Erase DTC.
3.
Perform DTC confirmation procedure again. Refer to
Is DTC U1000 detected again?
YES
>> Perform the trouble diagnosis for CAN communication system. Refer to
.
NO
>> INSPECTION END
DTC
Trouble diagnosis
(Trouble diagnosis contents)
Detecting condition
U1000
CAN COMM CIRCUIT
(CAN communication circuit)
When combination meter is not transmitting or receiving CAN communication signal for 2
seconds or more.
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