Nissan Murano. Instruction — part 1031
MWI-4
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORKFLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work flow
INFOID:0000000009721219
OVERALL SEQUENCE
• Reference 1···
MWI-34, "Diagnosis Description"
.
• Reference 2···
.
• Reference 3···
MWI-44, "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.
2.
CHECK SYMPTOM
JSNIA4484GB
MWI
DIAGNOSIS AND REPAIR WORKFLOW
MWI-5
< BASIC INSPECTION >
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• 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-34, "Diagnosis Description"
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 8.
5.
NARROW DOWN THE MALFUNCTIONING PARTS BY SYMPTOM DIAGNOSIS
Perform symptom diagnosis and narrow down the malfunctioning parts.
>> GO TO 8.
6.
CHECK COMBINATION METER POWER SUPPLY AND GROUND CIRCUITS
Inspect combination meter power supply and ground circuits. Refer to
.
Is inspection result OK?
YES
>> GO TO 7.
NO
>> GO TO 8.
7.
REPLACE COMBINATION METER
Replace combination meter.
>> GO TO 9.
8.
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 9.
9.
FINAL CHECK
Check that the combination meter operates normally.
Do they operate normally?
YES
>> INSPECTION END
NO
>> GO TO 1.
MWI-6
< SYSTEM DESCRIPTION >
METER SYSTEM
SYSTEM DESCRIPTION
METER SYSTEM
METER SYSTEM
METER SYSTEM : System Diagram
INFOID:0000000009721220
METER SYSTEM : System Description
INFOID:0000000009721221
COMBINATION METER
• The combination meter receives the information required to control the operation of each gauge, indicator/
warning lamp, and information display via CAN communication from each unit, each switch, and sensor.
• The combination meter incorporates a trip computer that displays warnings and messages on the informa-
tion display according to the information received from various units.
• The combination meter incorporates a buzzer function that sounds an audible alarm with the integrated
buzzer device. Refer to
WCS-5, "WARNING CHIME SYSTEM : System Description"
for further details.
• The combination meter integrates the meter circuit check function and the segment check function that
checks the information display operation.
IPDM E/R
• IPDM E/R reads the ON/OFF signals of the oil pressure switch and transmits the oil pressure switch signal to
the combination meter via BCM with the CAN communication line.
• IPDM E/R is equipped with the diagnosis function. It can perform the operation check of oil pressure warning
lamp with the auto active test and the diagnosis with CONSULT.
METER CONTROL FUNCTION LIST
JSNIA2249GB
MWI
METER SYSTEM
MWI-7
< SYSTEM DESCRIPTION >
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System
Description
Signal source
Meter/gauge
Speedometer
Receives vehicle speed signal and indicates vehicle speed.
ABS actuator and elec-
tric unit (control unit)
Tachometer
Receives engine speed signal and indicates engine speed.
ECM
Fuel gauge
Receives fuel level sensor signal and indicates fuel level.
Fuel level sensor unit
Engine coolant tem-
perature gauge
Receives engine coolant temperature signal and indicates coolant
temperature.
ECM
Warning lamp/
indicator lamp
Oil pressure warning
lamp
Receives oil pressure warning lamp signal and illuminates warning
lamp.
IPDM E/R
Master warning
Illuminates according to warning output on information display.
—
Information
display
Door open warning
Receives door switch signals and displays warning.
BCM
Parking brake re-
lease warning
Receives parking brake switch signal and vehicle speed signal and
displays warnings.
Parking brake switch
ABS actuator and elec-
tric unit (control unit)
Low fuel warning
Receives fuel gauge signal and displays warning if fuel level de-
creases to 11
(2-7/8 US gal, 2-3/8 Imp gal) or less.
Fuel level sensor unit
Low washer fluid
warning
Receives washer level switch signal and displays warning.
Washer level switch
Low outside tempera-
ture warning
Monitors ambient sensor signal and displays warning if ambient
temperature decreases to 3
°
C (37
°
F) or less. (If enabled)
Ambient sensor
Low tire pressure
warning
Receives low tire pressure warning lamp signal and displays warn-
ing.
BCM
Fuel filler cap warning
Receives fuel filler cap warning display signals and displays warn-
ing.
ECM
Instantaneous fuel
consumption
Calculates instantaneous fuel consumption based on received ve-
hicle speed signals and fuel consumption monitor signal and dis-
plays it.
ECM
ABS actuator and elec-
tric unit (control unit)
Average fuel con-
sumption
Calculates average fuel consumption in a reset-to-reset interval
based on received vehicle speed signals and fuel consumption
monitor signal and displays it.
ECM
ABS actuator and elec-
tric unit (control unit)
Average vehicle
speed
Calculates average vehicle speed in a reset-to-reset interval based
on received vehicle speed signals and displays it.
ABS actuator and elec-
tric unit (control unit)
Travel time
Displays accumulated key switch ON time from reset to reset.
—
Travel distance
Calculates accumulated travel distance in a reset-to-reset interval
based on received vehicle speed signals and displays it.
ABS actuator and elec-
tric unit (control unit)
Possible driving dis-
tance
Calculates possible driving distance based on received fuel con-
sumption monitor signal, vehicle speed signals and fuel level sen-
sor signal and displays it.
ABS actuator and elec-
tric unit (control unit)
ECM
Fuel level sensor unit
Ambient air tempera-
ture
Corrects ambient air temperature value based on received ambient
sensor signals and displays it.
Ambient sensor
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