Murano Cross Cabriolet Z51 (2012 year). Manual — part 63
MWI-42
< DTC/CIRCUIT DIAGNOSIS >
U1000 CAN COMM CIRCUIT
DTC/CIRCUIT DIAGNOSIS
U1000 CAN COMM CIRCUIT
Description
INFOID:0000000007565097
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-28, "CAN COMMUNICATION SYSTEM : CAN Communica-
DTC Logic
INFOID:0000000007565098
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000007565099
1.
PERFORM SELF DIAGNOSTIC
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
LAN-15, "Trouble Diagnosis Flow Chart"
NO
>> Refer to
GI-40, "Intermittent Incident"
.
DTC
Display contents of
CONSULT
Diagnostic item is detected when ...
Probable malfunction location
U1000
CAN COMM CIRCUIT
When combination meter is not transmitting or
receiving CAN communication signal for 2
seconds or more.
CAN communication system
Revision: 2013 February
2012 Murano CrossCabriolet
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U1010 CONTROL UNIT (CAN)
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U1010 CONTROL UNIT (CAN)
Description
INFOID:0000000007565100
Initial diagnosis of combination meter.
DTC Logic
INFOID:0000000007565101
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000007565102
1.
REPLACE COMBINATION METER
When DTC “U1010” is detected, replace combination meter.
>> INSPECTION END
DTC
Display contents of CON-
SULT
Diagnostic item is detected when ...
Probable malfunction location
U1010
CONTROL UNIT (CAN)
If any malfunction is detected during initial di-
agnosis of combination meter CAN controller
Combination meter
Revision: 2013 February
2012 Murano CrossCabriolet
MWI-44
< DTC/CIRCUIT DIAGNOSIS >
B2205 VEHICLE SPEED
B2205 VEHICLE SPEED
Description
INFOID:0000000007565103
Vehicle speed signal is transmitted from ABS actuator and electric unit (control unit) via CAN communication
to combination meter.
DTC Logic
INFOID:0000000007565104
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000007565105
1.
PERFORM SELF-DIAGNOSIS OF ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Perform “Self Diagnostic Result” of ABS actuator and electric unit (control unit), and repair or replace malfunc-
tioning parts.
>> Refer to
DTC
Display contents of
CONSULT
Diagnostic item is detected when ...
Probable malfunction location
B2205
VEHICLE SPEED
An abnormal vehicle speed signal is input
from ABS actuator and electric unit (control
unit) for 2 seconds or more
• Wheel sensor
• ABS actuator and electric unit (control unit)
Revision: 2013 February
2012 Murano CrossCabriolet
MWI
B2267 ENGINE SPEED
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B2267 ENGINE SPEED
Description
INFOID:0000000007565106
The engine speed signal is transmitted from ECM to the combination meter via CAN communication.
DTC Logic
INFOID:0000000007565107
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000007565108
1.
PERFORM SELF-DIAGNOSIS OF ECM
Perform “Self Diagnostic Result” of ECM, and repair or replace malfunctioning parts.
>> Refer to
.
DTC
Display contents of
CONSULT
Diagnostic item is detected when ...
Probable malfunction location
B2267
ENGINE SPEED
ECM continuously transmits abnormal engine
speed signals for 2 seconds or more
• Crankshaft position sensor (POS)
• ECM
Revision: 2013 February
2012 Murano CrossCabriolet
MWI-46
< DTC/CIRCUIT DIAGNOSIS >
B2268 WATER TEMP
B2268 WATER TEMP
Description
INFOID:0000000007565109
The engine coolant temperature signal is transmitted from ECM to the combination meter via CAN communi-
cation.
DTC Logic
INFOID:0000000007565110
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000007565111
1.
PERFORM SELF-DIAGNOSIS OF ECM
Perform “Self Diagnosis Result” of ECM, and repair or replace malfunctioning parts.
>> Refer to
.
DTC
Display contents of
CONSULT
Diagnostic item is detected when ...
Probable malfunction location
B2268
WATER TEMP
ECM continuously transmits abnormal engine
coolant temperature signals for 60 seconds or
more
• Engine coolant temperature sensor
• ECM
Revision: 2013 February
2012 Murano CrossCabriolet
MWI
POWER SUPPLY AND GROUND CIRCUIT
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POWER SUPPLY AND GROUND CIRCUIT
COMBINATION METER
COMBINATION METER : Diagnosis Procedure
INFOID:0000000007565112
1.
CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUIT
Check voltage between combination meter harness connector terminals and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between combination meter and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect combination meter connector.
3.
Check continuity between combination meter harness connector terminals and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
Power source
Fuse No.
Battery
11
Ignition switch ON or START
4
Terminals
Ignition switch po-
sition
Voltage
(Approx.)
(+)
(-)
Combination meter
Ground
Connector
Terminal
M34
1
OFF
Battery voltage
2
ON
Terminals
Continuity
(+)
(-)
Combination meter
Ground
Connector
Terminal
M34
3
Existed
4
23
Revision: 2013 February
2012 Murano CrossCabriolet
MWI-48
< DTC/CIRCUIT DIAGNOSIS >
FUEL LEVEL SENSOR SIGNAL CIRCUIT
FUEL LEVEL SENSOR SIGNAL CIRCUIT
Description
INFOID:0000000007565113
The fuel level sensor unit and fuel pump (main) and the fuel level sensor unit (sub) detect the fuel level in the
fuel tank and transmit the fuel gauge signal to the combination meter.
Component Function Check
INFOID:0000000007565114
1.
PERFORM COMPONENT FUNCTION CHECK (1)
1.
Turn ignition switch OFF.
2.
Disconnect fuel level sensor unit and fuel pump (main) connector.
3.
Connect variable resistor between harness connector terminals located on the vehicle side of the fuel
level sensor unit and fuel pump (main).
4.
Set variable resistor according to the resistance value shown in the following table and turn ignition switch
ON.
*: Reference resistance values used when the combination meter judges the indication position of the fuel
gauge.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Refer to
2.
PERFORM COMPONENT FUNCTION CHECK (2)
Check the fuel level sensor unit and fuel pump (main) and/or fuel level sensor (sub). Refer to
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the fuel level sensor unit and fuel pump (main) and/or fuel level sensor unit (sub). Refer
to
FL-6, "Removal and Installation"
Diagnosis Procedure
INFOID:0000000007565115
1.
CHECK FUEL LEVEL SENSOR CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect combination meter connector and fuel level sensor unit and fuel pump (main) connector.
3.
Check continuity between combination meter harness connector terminal and fuel level sensor unit and
fuel pump (main) harness connector terminal.
Fuel level sensor unit and fuel pump (main)
Connector
Terminals
B40
2
5
Resistance (
Ω
)
*
(Approx.)
Fuel gauge indication position
(Approx.)
Less than 6.0
Full
22.8
3/4
44.6
2/4
65.6
1/4
More than 80.0
Empty
Revision: 2013 February
2012 Murano CrossCabriolet
MWI
FUEL LEVEL SENSOR SIGNAL CIRCUIT
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4.
Check continuity between combination meter harness connector terminal and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK FUEL LEVEL SENSOR GROUND CIRCUIT
Check continuity between fuel level sensor unit and fuel pump (main) harness connector terminal and combi-
nation meter harness connector terminal.
Is the inspection result normal?
YES
>> Replace combination meter. Refer to
MWI-70, "Removal and Installation"
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000007565116
1.
CHECK FUEL LEVEL SENSOR UNIT AND FUEL PUMP (MAIN)
1.
Remove the fuel level sensor unit and fuel pump (main). Refer to
FL-6, "Removal and Installation"
2.
Check the resistance between fuel level sensor unit and fuel pump (main).
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace fuel level sensor unit and fuel pump (main). Refer to
FL-6, "Removal and Installation"
Terminals
Continuity
(+)
(-)
Combination meter
Fuel level sensor unit and fuel
pump (main)
Connector
Terminal
Connector
Terminal
M34
34
B40
2
Existed
Terminals
Continuity
(+)
(-)
Combination meter
Ground
Connector
Terminal
M34
34
Not existed
Terminals
Continuity
(+)
(-)
Fuel level sensor unit and fuel
pump (main)
Combination meter
Connector
Terminal
Connector
Terminal
B40
5
M34
24
Existed
Terminals
Condition
Resistance (
Ω
)
(Approx.)
Height [mm (in)]
(Approx.)
Fuel level sensor unit and
fuel pump (main)
5
6
Full (A)
2.4
189.7 (7.47)
Empty (B)
79
16.8 (0.661)
2
7
—
0
—
JPNIA1323ZZ
Revision: 2013 February
2012 Murano CrossCabriolet
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FUEL LEVEL SENSOR SIGNAL CIRCUIT
2.
CHECK FUEL LEVEL SENSOR UNIT (SUB)
1.
Remove the fuel level sensor unit (sub). Refer to
FL-6, "Removal and Installation"
.
2.
Inspect the resistance of fuel level sensor unit (sub).
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace fuel level sensor unit (sub). Refer to
FL-6, "Removal and Installation"
.
Terminals
Condition
Resistance (
Ω
)
(Approx.)
Height [mm (in)]
(Approx.)
Fuel level sensor unit (sub)
(+)
(-)
6
7
Full (A)
2.4
200.3 (7.89)
Empty (B)
45.2
22.6 (0.890)
JPNIA0738ZZ
Revision: 2013 February
2012 Murano CrossCabriolet
MWI
METER CONTROL SWITCH SIGNAL CIRCUIT
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METER CONTROL SWITCH SIGNAL CIRCUIT
Description
INFOID:0000000007565117
Transmits the following signals to the combination meter.
Diagnosis Procedure
INFOID:0000000007565118
1.
CHECK METER CONTROL SWITCH INPUT SIGNAL
1.
Turn the ignition switch ON.
2.
Check voltage between the following terminals of the combination meter.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
CHECK METER CONTROL SWITCH SIGNAL CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the combination meter and meter control switch connectors.
3.
Check continuity between combination meter harness connector terminals and meter control switch har-
ness connector terminals.
•
(Illumination control) switch signal (+)
•
(Illumination control) switch signal (–)
• Trip reset switch signal
•
(select) switch signal
•
(enter) switch is pressed
Terminals
Condition
Voltage
(Approx.)
Combination meter
(+)
(-)
Connector
Terminal
Connector
Terminal
M34
12
M34
10
When
(select) switch is pressed
0 V
Other than the above
5 V
11
When
(enter) switch is pressed
0 V
Other than the above
5 V
8
When trip reset switch is pressed
0 V
Other than the above
5 V
14
When
(illumination control) switch is pressed
0 V
Other than the above
5 V
13
When
(illumination control) switch is pressed
0 V
Other than the above
5 V
Revision: 2013 February
2012 Murano CrossCabriolet
MWI-52
< DTC/CIRCUIT DIAGNOSIS >
METER CONTROL SWITCH SIGNAL CIRCUIT
4.
Check continuity between combination meter harness connector terminals and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000007565119
1.
CHECK METER CONTROL SWITCH
1.
Turn the ignition switch OFF.
2.
Disconnect the meter control switch connector.
3.
Check continuity between the following terminals of the meter control switch.
Is the inspection result normal?
YES
>> INSPECTION END
Terminals
Continuity
Combination meter
Meter control switch
(+)
(-)
Connector
Terminal
Connector
Terminal
M34
8
M83
11
Existed
10
5
11
12
12
1
13
6
14
4
Terminals
Continuity
(+)
(-)
Combination meter
Ground
Connector
Terminal
M34
8
Not existed
10
11
12
13
14
Terminal No.
Operation and status
Continuity
1
5
Press the
(select) switch
Existed
Other than the above
Not existed
12
5
Press the
(enter) switch
Existed
Other than the above
Not existed
11
5
Press the trip reset switch.
Existed
Other than the above
Not existed
4
5
Press the
(illumination control) switch
Existed
Other than the above
Not existed
6
5
Press the
(illumination control) switch
Existed
Other than the above
Not existed
Revision: 2013 February
2012 Murano CrossCabriolet
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METER CONTROL SWITCH SIGNAL CIRCUIT
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NO
>> Replace the meter control switch. Refer to
MWI-72, "Removal and Installation"
.
Revision: 2013 February
2012 Murano CrossCabriolet
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< DTC/CIRCUIT DIAGNOSIS >
OIL PRESSURE SWITCH SIGNAL CIRCUIT
OIL PRESSURE SWITCH SIGNAL CIRCUIT
Description
INFOID:0000000007565120
Detects the engine oil pressure and transmits the oil pressure switch signal to IPDM E/R.
Component Function Check
INFOID:0000000007565121
1.
CHECK COMBINATION METER INPUT SIGNAL
Select the “Data Monitor” for the “METER/M&A” and check the “OIL W/L” monitor value.
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000007565122
1.
CHECK OIL PRESSURE SWITCH CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect IPDM E/R connector and oil pressure switch connector.
3.
Check continuity between IPDM E/R harness connector terminal and oil pressure switch harness connec-
tor terminal.
4.
Check continuity between IPDM E/R harness connector terminal and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000007565123
1.
CHECK OIL PRESSURE SWITCH
“OIL W/L”
Ignition switch ON
: On
Engine running
: Off
Terminals
Continuity
(+)
(
−
)
IPDM E/R
Oil pressure switch
Connector
Terminal
Connector
Terminal
F12
75
F63
1
Existed
Terminals
Continuity
(+)
(
−
)
IPDM E/R
Ground
Connector
Terminal
F12
75
Not existed
Revision: 2013 February
2012 Murano CrossCabriolet
MWI
OIL PRESSURE SWITCH SIGNAL CIRCUIT
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Check continuity between oil pressure switch and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace oil pressure switch. Refer to
EM-38, "Removal and Installation"
.
Condition
Continuity
Engine stopped
Existed
Engine running
Not existed
ELF0044D
Revision: 2013 February
2012 Murano CrossCabriolet
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< DTC/CIRCUIT DIAGNOSIS >
PARKING BRAKE SWITCH SIGNAL CIRCUIT
PARKING BRAKE SWITCH SIGNAL CIRCUIT
Description
INFOID:0000000007565124
Transmits the parking brake switch signal to the combination meter.
Diagnosis Procedure
INFOID:0000000007565125
1.
CHECK COMBINATION METER INPUT SIGNAL
1.
Turn ignition switch ON.
2.
Check the voltage between combination meter harness connector terminal and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
CHECK PARKING BRAKE SWITCH SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect combination meter connector and parking brake switch connector.
3.
Check continuity between combination meter harness connector terminal and parking brake switch har-
ness connector terminal.
4.
Check continuity between combination meter harness connector terminal and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000007565126
1.
CHECK PARKING BRAKE SWITCH
Check parking brake switch. Refer to
BRC-83, "Component Inspection"
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace parking brake switch. Refer to
.
Terminals
Condition
Voltage
(Approx.)
(+)
(-)
Combination meter
Ground
Connector
Terminal
M34
26
When parking brake is applied
0 V
When parking brake is released
5 V
Terminals
Continuity
(+)
(-)
Combination meter
Parking brake switch
Connector
Terminal
Connector
Terminal
M34
26
E27
1
Existed
Terminals
Continuity
(+)
(-)
Combination meter
Ground
Connector
Terminal
M34
26
Not existed
Revision: 2013 February
2012 Murano CrossCabriolet
MWI
WASHER LEVEL SWITCH SIGNAL CIRCUIT
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WASHER LEVEL SWITCH SIGNAL CIRCUIT
Description
INFOID:0000000007565127
Transmits the washer level switch signal to the combination meter.
Diagnosis Procedure
INFOID:0000000007565128
1.
CHECK WASHER LEVEL SWITCH SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect combination meter connector and washer level switch connector.
3.
Check continuity between combination meter harness connector terminal and washer level switch har-
ness connector terminal.
4.
Check continuity between combination meter harness connector terminal and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK WASHER LEVEL SWITCH GROUND CIRCUIT
Check continuity between washer level switch connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000007565129
1.
CHECK WASHER LEVEL SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect washer level switch connector.
3.
Check washer level switch.
Terminals
Continuity
Combination meter
Washer level switch
(+)
(-)
Connector
Terminal
Connector
Terminal
M34
29
E338
1
Existed
Terminals
Continuity
(+)
(-)
Combination meter
Ground
Connector
Terminal
M34
29
Not existed
Terminals
Continuity
Washer level switch
Ground
Connector
Terminal
E338
2
Existed
Revision: 2013 February
2012 Murano CrossCabriolet
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