Nissan Frontier D40. Instruction — part 856
MWI
POWER SUPPLY AND GROUND CIRCUIT
MWI-29
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
POWER SUPPLY AND GROUND CIRCUIT
COMBINATION METER
COMBINATION METER : Diagnosis Procedure
INFOID:0000000005275819
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSES
Check for blown combination meter fuses.
Is the inspection result normal?
YES
>> GO TO 2
NO
>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.
POWER SUPPLY CIRCUIT CHECK
1.
Disconnect combination meter connector M24.
2.
Check voltage between combination meter harness connector
M24 terminals 3, 16 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Check harness for open between combination meter and fuse.
3.
GROUND CIRCUIT CHECK
1.
Turn ignition switch OFF.
2.
Check continuity between combination meter harness connector
M24 terminals 13, 23 and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Check ground harness.
BCM (BODY CONTROL MODULE)
Unit
Power source
Fuse No.
Combination meter
Battery 19
Ignition switch ON or START
14
Terminals
Ignition switch position
(+)
(–)
OFF
ACC
ON
Connector
Terminal
M24
3
Ground
Battery
voltage
Battery
voltage
Battery
voltage
16
0V
0V
Battery
voltage
WKIA3279E
Terminals
Continuity
(+)
(–)
Connector
Terminal
M24
13
Ground
Yes
23
WKIA3280E
MWI-30
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
BCM (BODY CONTROL MODULE) : Diagnosis Procedure
INFOID:0000000005548841
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSES AND FUSIBLE LINK
Check that the following fuses and fusible link are not blown.
Is the fuse blown?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit.
NO
>> GO TO 2
2.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BCM.
3.
Check voltage between BCM harness connector and ground.
Is the measurement value normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES
>> Inspection End.
NO
>> Repair or replace harness.
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Terminal No.
Signal name
Fuses and fusible link No.
57
Battery power supply
18 (10A)
70
G (50A)
11
Ignition ACC or ON
4 (10A)
38
Ignition ON or START
1 (10A)
Connector
Terminals
Power
source
Condition
Voltage (V) (Ap-
prox.)
(+)
(-)
M18
11
Ground
ACC
power
supply
Ignition
switch
ACC or
ON
Battery voltage
38
Ground
Ignition
power
supply
Ignition
switch ON
or START
Battery voltage
M20
57
Ground
Battery
power
supply
Ignition
switch
OFF
Battery voltage
70
Ground
Battery
power
supply
Ignition
switch
OFF
Battery voltage
LIIA2415E
BCM
Ground
Continuity
Connector
Terminal
M20
67
Yes
LIIA0915E
MWI
POWER SUPPLY AND GROUND CIRCUIT
MWI-31
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) : Di-
agnosis Procedure
INFOID:0000000005548842
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSIBLE LINKS
Check that the following IPDM E/R fusible links are not blown.
Is the fusible link blown?
YES
>> Replace the blown fusible link after repairing the affected circuit.
NO
>> GO TO 2
2.
CHECK BATTERY POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect IPDM E/R.
3.
Check voltage between IPDM E/R harness connectors and
ground.
Is there voltage on all pins?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Check continuity between IPDM E/R harness connectors and
ground.
Does continuity exist?
YES
>> Inspection End.
NO
>> Repair or replace harness.
Terminal No.
Signal name
Fusible link No.
1
Battery
A, D
2
C
22
I
Terminals
Ignition
switch posi-
tion
Voltage (V)
(Approx.)
(+)
(
−
)
Connector
Terminal
E118 (A)
1
Ground
OFF
Battery
voltage
2
E120 (B)
22
AWMIA0506ZZ
IPDM E/R
Ground
Continuity
Connector
Terminal
E122 (A)
38
Yes
E124 (B)
59
AWMIA0024ZZ
MWI-32
< COMPONENT DIAGNOSIS >
FUEL LEVEL SENSOR SIGNAL CIRCUIT
FUEL LEVEL SENSOR SIGNAL CIRCUIT
Description
INFOID:0000000005275822
The fuel level sensor unit and fuel pump detects the approximate fuel level in the fuel tank and transmits the
fuel level signal to the combination meter.
Component Function Check
INFOID:0000000005275823
1.
COMBINATION METER INPUT SIGNAL
1.
Select “METER/M&A” on CONSULT-III.
2.
Using “FUEL METER” of “DATA MONITOR”, compare the value of DATA MONITOR with fuel gauge
pointer of combination meter.
Does the data monitor value approximately match the fuel gauge indication?
YES
>> Inspection End.
NO
>> Replace combination meter. Refer to
MWI-95, "Removal and Installation"
Diagnosis Procedure
INFOID:0000000005275824
Regarding Wiring Diagram information, refer to
.
1.
CHECK HARNESS CONNECTOR
1.
Turn ignition switch OFF.
2.
Check combination meter and fuel level sensor unit terminals (meter-side and harness-side) for poor con-
nection.
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Repair or replace terminals or connectors.
2.
CHECK FUEL LEVEL SENSOR UNIT CIRCUIT
1.
Disconnect combination meter connector and fuel level sensor
unit connector.
2.
Check continuity between combination meter harness connector
and fuel level sensor unit and fuel pump harness connector.
3.
Check continuity between fuel level sensor unit and fuel pump
harness connector and ground.
Fuel gauge pointer
Reference value of data monitor [lit.]
Full
Approx. 79.3
3/4
Approx. 58.5
1/2
Approx. 37.1
1/4
Approx. 22.4
Empty
Approx. 7.6
Terminals
Continuity
(+)
(-)
Connector
Terminal
Connector
Terminal
C5
2
M24
9
Yes
WKIA3288E
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