Infiniti QX56 (JA60). Manual — part 693
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MWI
METER SYSTEM
MWI-7
< FUNCTION DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
METER SYSTEM : Component Parts Location
INFOID:0000000005146028
METER SYSTEM : Component Description
INFOID:0000000005146029
1.
IPDM E/R E122, E124
2.
Combination meter M23, M24
3.
Fuel level sensor unit and fuel pump
C5 (view with inspection hole cover re-
moved)
4.
ECM E16 (view with battery removed) 5.
ABS actuator and electric unit (control
unit) E125
6.
Oil pressure switch F4
A: Oil pan (upper)
7.
A/T assembly F9
8.
BCM M18, M19 (view with instrument
lower panel LH removed)
AWNIA0201ZZ
Unit
Description
Combination meter
Controls the following with the signals received from each unit via CAN communication and the sig-
nals from switches and sensors.
• Speedometer
• Tachometer
• Engine coolant temperature gauge
• Fuel gauge
• Engine oil pressure gauge
• Odo/trip meter
• Voltage gauge
• Indicator lamps
• Warning lamps
• Warning chime
• Information display
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 CAN communication line.
Fuel level sensor unit
Oil pressure switch
ECM
Transmits the following signals to the combination meter with CAN communication line.
• Engine speed signal
• Engine coolant temperature signal
• Fuel consumption monitor signal
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MWI-8
< FUNCTION DIAGNOSIS >
METER SYSTEM
SPEEDOMETER
SPEEDOMETER : System Diagram
INFOID:0000000005146030
SPEEDOMETER : System Description
INFOID:0000000005146031
The ABS actuator and electric unit (control unit) provides a vehicle speed signal to the combination meter via
CAN communication lines.
ABS actuator and electric unit
(control unit)
Transmits the vehicle speed signal to the combination meter with CAN communication line.
BCM
• Transmits signals provided by various units to the combination meter with CAN communication
line.
• Transmits the security signal to the combination meter.
TCM
• Transmits shift position signal to the combination meter with CAN communication line.
• Transmits A/T oil temperature signal to the combination meter with CAN communication line.
Washer level switch
Transmits the washer level signal to the combination meter.
Brake fluid level switch
Transmits the brake fluid level switch signal to the combination meter.
Parking brake switch
Refer to
.
Unit
Description
WKIA5370E
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MWI
METER SYSTEM
MWI-9
< FUNCTION DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
SPEEDOMETER : Component Parts Location
INFOID:0000000005146032
SPEEDOMETER : Component Description
INFOID:0000000005146033
TACHOMETER
TACHOMETER : System Diagram
INFOID:0000000005146034
1.
IPDM E/R E122, E124
2.
Combination meter M23, M24
3.
Fuel level sensor unit and fuel pump
C5 (view with inspection hole cover re-
moved)
4.
ECM E16 (view with battery removed) 5.
ABS actuator and electric unit (control
unit) E125
6.
Oil pressure switch F4
A: Oil pan (upper)
7.
A/T assembly F9
8.
BCM M18, M19 (view with instrument
lower panel LH removed)
AWNIA0201ZZ
Unit
Description
Combination meter
Indicates the vehicle speed according to the vehicle speed signal received from ABS actuator and
electric unit (control unit) via CAN communication.
ABS actuator and electric unit
(control unit)
Transmits the vehicle speed signal to the combination meter with CAN communication line.
SKIB6904E
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MWI-10
< FUNCTION DIAGNOSIS >
METER SYSTEM
TACHOMETER : System Description
INFOID:0000000005146035
The tachometer indicates engine speed in revolutions per minute (rpm).
The ECM provides an engine speed signal to the combination meter via CAN communication lines.
TACHOMETER : Component Parts Location
INFOID:0000000005146036
TACHOMETER : Component Description
INFOID:0000000005146037
ENGINE COOLANT TEMPERATURE GAUGE
1.
IPDM E/R E122, E124
2.
Combination meter M23, M24
3.
Fuel level sensor unit and fuel pump
C5 (view with inspection hole cover re-
moved)
4.
ECM E16 (view with battery removed) 5.
ABS actuator and electric unit (control
unit) E125
6.
Oil pressure switch F4
A: Oil pan (upper)
7.
A/T assembly F9
8.
BCM M18, M19 (view with instrument
lower panel LH removed)
AWNIA0201ZZ
Unit
Description
Combination meter
Indicates the engine speed in RPM according to the engine speed signal received from ECM via
CAN communication.
ECM
Transmits the engine speed signal to the combination meter with CAN communication line.
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