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 

BCS-46, "Wiring Diagram"

.

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

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< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

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J

K

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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 

PCS-23, "Wiring Diagram"

.

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 

GI-20, "Model Variation"

.

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 

MWI-65, "Wiring Diagram"

.

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