Nissan Murano Z50 (2004 year). Manual — part 108
ASCD BRAKE SWITCH
EC-639
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Revision: 2004 November
2004 Murano
ASCD BRAKE SWITCH
PFP:25320
Component Description
ABS004P1
When the brake pedal is depressed, ASCD brake switch is turned
OFF and stop lamp switch is turned ON. ECM detects the state of
the brake pedal by this input of two kinds (ON/OFF signal).
Refer to
EC-665, "AUTOMATIC SPEED CONTROL DEVICE
for the ASCD function.
CONSULT-II Reference Value in Data Monitor Mode
ABS004VT
Specification data are reference values.
PBIB1368E
MONITOR ITEM
CONDITION
SPECIFICATION
BRAKE SW1
●
Ignition switch: ON
Brake pedal: Fully released
ON
Brake pedal: Slightly depressed
OFF
BRAKE SW2
●
Ignition switch: ON
Brake pedal: Fully released
OFF
Brake pedal: Slightly depressed
ON
EC-640
ASCD BRAKE SWITCH
Revision: 2004 November
2004 Murano
Wiring Diagram
ABS004VU
TBWA0393E
ASCD BRAKE SWITCH
EC-641
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Revision: 2004 November
2004 Murano
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic Procedure
ABS004P4
1.
CHECK OVERALL FUNCTION-I
With CONSULT-II
1.
Turn ignition switch ON.
2.
Select “BRAKE SW1” in “DATA MONITOR” mode with CONSULT-II.
3.
Check “BRAKE SW1” indication under the following conditions.
Without CONSULT-II
1.
Turn ignition switch ON.
2.
Check voltage between ECM terminal 108 and ground under the
following conditions.
OK or NG
OK
>> GO TO 2.
NG
>> GO TO 3.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
101
R/G
Stop lamp switch
[Ignition switch: OFF]
●
Brake pedal is fully released
Approximately 0V
[Ignition switch: OFF]
●
Brake pedal is depressed
BATTERY VOLTAGE
(11 - 14V)
108
L/B
ASCD brake switch
[Ignition switch: ON]
●
Brake pedal is depressed
Approximately 0V
[Ignition switch: ON]
●
Brake pedal is fully released
BATTERY VOLTAGE
(11 - 14V)
CONDITION
INDICATION
When brake pedal is depressed
OFF
When brake pedal is fully released
ON
SEC011D
CONDITION
VOLTAGE
When brake pedal is depressed
Approximately 0V
When brake pedal is fully released
Battery voltage
MBIB0061E
EC-642
ASCD BRAKE SWITCH
Revision: 2004 November
2004 Murano
2.
CHECK OVERALL FUNCTION-II
With CONSULT-II
Check “BRAKE SW2” indication in “DATA MONITOR” mode.
Without CONSULT-II
Check voltage between ECM terminal 101 and ground under the following conditions.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 8.
CONDITION
INDICATION
When brake pedal is released
OFF
When brake pedal is depressed
ON
SEC013D
CONDITION
VOLTAGE
When brake pedal is released
Approximately 0V
When brake pedal is depressed
Battery voltage
MBIB0060E
ASCD BRAKE SWITCH
EC-643
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3.
CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect ASCD brake switch harness connector.
3.
Turn ignition switch ON.
4.
Check voltage between ASCD brake switch terminal 1 and
ground with CONSULT-II or tester.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 4.
4.
DETECT MALFUNCTIONING PART
Check the following.
●
Fuse block (J/B) connector E101
●
10A fuse
●
Harness for open or short between ASCD brake switch and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check harness continuity between ECM terminal 108 and ASCD brake switch terminal 2.
Refer to Wiring Diagram.
4.
Also check harness for short to ground or short to power.
OK or NG
OK
>> GO TO 7.
NG
>> GO TO 6.
6.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors E109, M6
●
Harness for open or short between ECM and ASCD brake switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB1368E
Voltage: Battery voltage
PBIB0857E
Continuity should exist.
EC-644
ASCD BRAKE SWITCH
Revision: 2004 November
2004 Murano
7.
CHECK ASCD BRAKE SWITCH
Refer to
EC-545, "Component Inspection"
OK or NG
OK
>> GO TO 13.
NG
>> Replace ASCD brake switch.
8.
CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect stop lamp switch harness connector.
3.
Check voltage between stop lamp switch terminal 1 and ground
with CONSULT -II or tester.
OK or NG
OK
>> GO TO 10.
NG
>> GO TO 9.
9.
DETECT MALFUNCTIONING PART
Check the following.
●
Fuse block (J/B) connector E101
●
10A fuse
●
Harness for open or short between stop lamp switch and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
10.
CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Disconnect ECM harness connector.
2.
Check harness continuity between ECM terminal 101 and stop lamp switch terminal 2.
Refer to Wiring Diagram.
3.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 12.
NG
>> GO TO 11.
PBIB1368E
Voltage: Battery voltage
PBIB0117E
Continuity should exist.
ASCD BRAKE SWITCH
EC-645
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11.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors E110, M7
●
Harness for open or short between ECM and stop lamp switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
12.
CHECK STOP LAMP SWITCH
Refer to
EC-545, "Component Inspection"
OK or NG
OK
>> GO TO 13.
NG
>> Replace stop lamp switch.
13.
CHECK INTERMITTENT INCIDENT
Refer to
EC-130, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
>> INSPECTION END
Component Inspection
ABS004P5
ASCD BRAKE SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect ASCD brake switch harness connector.
3.
Check continuity between ASCD brake switch terminals 1 and 2
under the following conditions.
If NG, adjust ASCD brake switch installation, refer to
STOP LAMP SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect stop lamp switch harness connector.
3.
Check continuity between stop lamp switch terminals 1 and 2
under the following conditions.
If NG, adjust stop lamp switch installation, refer to
Condition
Continuity
When brake pedal is fully released.
Should exist.
When brake pedal is depressed.
Should not exist.
SEC023D
Condition
Continuity
When brake pedal is fully released.
Should not exist.
When brake pedal is depressed.
Should exist.
PBIB0118E
EC-646
ASCD INDICATOR
Revision: 2004 November
2004 Murano
ASCD INDICATOR
PFP:24814
Component Description
ABS004P6
ASCD indicator lamp illuminates to indicate ASCD operation status. Lamp has two indicators, CRUISE and
SET, and is integrated in combination meter.
CRUISE indicator illuminates when ON/OFF(MAIN) switch on ASCD steering switch is turned ON to indicated
that ASCD system is ready for operation.
SET indicator illuminates when following conditions are met.
●
CRUISE indicator is illuminated.
●
COAST/SET switch on ASCD steering switch is turned ON while vehicle speed is within the range of
ASCD setting.
SET indicator remains lit during ASCD control.
Refer to
EC-665, "AUTOMATIC SPEED CONTROL DEVICE (ASCD)"
for the ASCD function.
CONSULT-II Reference Value in Data Monitor Mode
ABS004VV
Specification data are reference value.
MONITOR ITEM
CONDITION
SPECIFICATION
CRUISE LAMP
●
Ignition switch: ON
ON/OFF (MAIN) switch: Pressed at
the 1st time
→
at the 2nd time
ON
→
OFF
SET LAMP
●
ON/OFF (MAIN) switch: ON
●
When vehicle speed is between
40 km/h (25 MPH) and 144 km/h
(89 MPH)
COAST/SET switch: Pressed
ON
COAST/SET switch: Released
OFF
ASCD INDICATOR
EC-647
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Revision: 2004 November
2004 Murano
Wiring Diagram
ABS004VW
TBWA0394E
EC-648
ASCD INDICATOR
Revision: 2004 November
2004 Murano
Diagnostic Procedure
ABS004VX
1.
CHECK OVERALL FUNCTION
Check ASCD indicator under the following conditions.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 2.
2.
CHECK DTC
Check that DTC U1000 or U1001 is not displayed.
OK or NG
OK
>> GO TO 3.
NG
>> Perform trouble diagnoses for DTC U1000, U1001. Refer to
.
3.
CHECK DTC WITH UNIFIED METER AND A/C AMP.
Refer to
DI-36, "SELF-DIAGNOSTIC RESULTS"
OK or NG
OK
>> GO TO 4.
NG
>> Go to
DI-23, "Communication Line Inspection"
4.
CHECK INTERMITTENT INCIDENT
Refer to
EC-130, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
>> INSPECTION END
MONITOR ITEM
CONDITION
SPECIFICATION
CRUISE LAMP
●
Ignition switch: ON
ON/OFF (MAIN) switch: Pressed at
the 1st time
→
at the 2nd time
ON
→
OFF
SET LAMP
●
ON/OFF (MAIN) switch: ON
●
When vehicle speed is between
40 km/h (25 MPH) and 144 km/h
(89 MPH)
COAST/SET switch: Pressed
ON
COAST/SET switch: Released
OFF
MIL AND DATA LINK CONNECTOR
EC-649
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Revision: 2004 November
2004 Murano
MIL AND DATA LINK CONNECTOR
PFP:24814
Wiring Diagram
ABS004PA
TBWA0374E
EC-650
MIL AND DATA LINK CONNECTOR
Revision: 2004 November
2004 Murano
TBWA0375E
EVAPORATIVE EMISSION SYSTEM
EC-651
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Revision: 2004 November
2004 Murano
EVAPORATIVE EMISSION SYSTEM
PFP:14950
Description
ABS004PB
SYSTEM DESCRIPTION
The evaporative emission system is used to reduce hydrocarbons emitted into the atmosphere from the fuel
system. This reduction of hydrocarbons is accomplished by activated charcoals in the EVAP canister.
The fuel vapor in the sealed fuel tank is led into the EVAP canister which contains activated carbon and the
vapor is stored there when the engine is not operating or when refueling to the fuel tank.
The vapor in the EVAP canister is purged by the air through the purge line to the intake manifold when the
engine is operating. EVAP canister purge volume control solenoid valve is controlled by ECM. When the
engine operates, the flow rate of vapor controlled by EVAP canister purge volume control solenoid valve is
proportionally regulated as the air flow increases.
EVAP canister purge volume control solenoid valve also shuts off the vapor purge line during decelerating and
idling.
PBIB1685E
EC-652
EVAPORATIVE EMISSION SYSTEM
Revision: 2004 November
2004 Murano
EVAPORATIVE EMISSION LINE DRAWING
PBIB1296E
EVAPORATIVE EMISSION SYSTEM
EC-653
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Revision: 2004 November
2004 Murano
PBIB1385E
EC-654
EVAPORATIVE EMISSION SYSTEM
Revision: 2004 November
2004 Murano
Component Inspection
ABS004PC
EVAP CANISTER
Check EVAP canister as follows:
1.
Block port B .
2.
Blow air into port A and check that it flows freely out of port C .
3.
Release blocked port B .
4.
Apply vacuum pressure to port B and check that vacuum pres-
sure exists at the ports A and C .
5.
Block port A and B .
6.
Apply pressure to port C and check that there is no leakage.
FUEL TANK VACUUM RELIEF VALVE (BUILT INTO FUEL FULLER CAP)
1.
Wipe clean valve housing.
2.
Check valve opening pressure and vacuum.
3.
If out of specification, replace fuel filler cap as an assembly.
CAUTION:
Use only a genuine fuel filler cap as a replacement. If an incor-
rect fuel filler cap is used, the MIL may come on.
EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Refer to
FUEL TANK TEMPERATURE SENSOR
Refer to
EVAP CANISTER VENT CONTROL VALVE
Refer to
EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to
PBIB1044E
SEF445Y
Pressure:
15.3 - 20.0 kPa (0.156 - 0.204 kg/cm
2
, 2.22
- 2.90 psi)
Vacuum:
−
6.0 to
−
3.3 kPa (
−
0.061 to
−
0.034 kg/cm
2
,
−
0.87 to
−
0.48 psi)
SEF943S
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