Nissan Titan A60. Manual — part 730
MWI-34
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
NO
>> Check ground harness.
BCM (BODY CONTROL MODULE)
BCM (BODY CONTROL MODULE) : Diagnosis Procedure
INFOID:0000000006709536
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
Terminal No.
Signal name
Fuses and fusible link No.
57
Battery power supply
22 (15A)
70
F (50A)
11
Ignition ACC or ON
4 (10A)
38
Ignition ON or START
59 (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
MWI
POWER SUPPLY AND GROUND CIRCUIT
MWI-35
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
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)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) : Di-
agnosis Procedure
INFOID:0000000006709540
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSES AND FUSIBLE LINK
Check that the following IPDM E/R fuses or 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 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 the measurement value normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
BCM
Ground
Continuity
Connector
Terminal
M20
67
Yes
LIIA0915E
Terminal No.
Signal name
Fuses and fusible link No.
1
Battery
A (140A), D (80A)
2
Battery
C (80A)
12
Ignition switch ON or START
59 (10A)
Terminals
Ignition switch position
(+)
(
−)
OFF
ON
START
Connector
Terminal
E118 (A)
1
Ground
Battery
voltage
Battery
voltage
Battery
voltage
2
Battery
voltage
Battery
voltage
Battery
voltage
E119 (B)
12
0V
Battery
voltage
Battery
voltage
AWMIA0023ZZ
MWI-36
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
2. Check continuity between IPDM E/R harness connectors and
ground.
Does continuity exist?
YES
>> Inspection End.
NO
>> Repair or replace harness.
IPDM E/R
Ground
Continuity
Connector
Terminal
E122 (A)
38
Yes
E124 (B)
59
AWMIA0024ZZ
MWI
FUEL LEVEL SENSOR SIGNAL CIRCUIT
MWI-37
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
FUEL LEVEL SENSOR SIGNAL CIRCUIT
Description
INFOID:0000000006164918
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:0000000006164919
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.
NOTE:
For model identification, refer to
.
Does the data monitor value approximately match the fuel gauge indication?
YES
>> Inspection End.
NO
>> Replace combination meter. Refer to
MWI-93, "Removal and Installation"
Diagnosis Procedure
INFOID:0000000006164920
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
(B) and fuel level sensor unit and fuel pump harness connector
(A).
Fuel gauge pointer
Reference value of data monitor [lit.]
Short wheelbase models (SWB)
Long wheelbase models (LWB)
Full
Approx. 93
Approx. 122
3/4
Approx. 73
Approx. 97
1/2
Approx. 52
Approx. 68
1/4
Approx. 30
Approx. 40
Empty
Approx. 11
Approx. 15
A
B
Continuity
Connector
Terminal
Connector
Terminal
C7 (with
Flexible Fuel)
C5 (without
Flexible Fuel)
2
M24
15
Yes
WKIA4617E
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