Nissan Frontier. Manual - part 779

 

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Nissan Frontier. Manual - part 779

 

 

HEADLAMP (LO) CIRCUIT

EXL-41

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

Is the measurement value normal?

YES

>> GO TO 6

NO

>> Repair the harnesses or connectors.

6.

CHECK DAYTIME LIGHT RELAY 2 GROUND CIRCUIT

Check continuity between daytime light relay 2 harness connector and ground.

Does continuity exist?

YES

>> GO TO 7.

NO

>> Repair the harness or connector.

7.

CHECK DAYTIME LIGHT RELAY 2

Check daytime light relay 2. Refer to 

EXL-42, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-28, "Removal and Installation of IPDM E/R"

.

NO

>> Replace daytime light relay 2.

8.

CHECK FRONT HEADLAMP (LO) GROUND CIRCUIT

Check continuity between the front headlamp harness connector ter-

minal 2 and ground.

Does continuity exist?

YES

>> Inspect the headlamp bulb.

NO (Except LH with DTRL)>> Repair the harness.

NO (LH with DTRL)>> GO TO 9

9.

CHECK CONTINUITY BETWEEN FRONT HEADLAMP LH (HI) AND DAYTIME LIGHT RELAY 1

1. Disconnect daytime light relay 1 connector.

2. Check continuity between front headlamp LH harness connector and daytime light relay 1 harness con-

nector.

Does continuity exist?

YES

>> GO TO 10

NO

>> Repair the harness or connector.

10.

CHECK DAYTIME LIGHT RELAY 1 GROUND CIRCUIT

Check continuity between daytime light relay 1 harness connector and ground.

Daytime light relay 2

Ground

Continuity

Connector

Terminal

E104

3

No

Daytime light relay 2

Ground

Continuity

Connector

Terminal

E104

1

Yes

Connector

Terminal

—

Continuity

LH

E7 (with DTRL)

2

Ground

Yes

E11 (without DTRL)

RH

E107

ALLIA0624GB

Front headlamp LH

Daytime light relay 1

Continuity

Connector

Terminal

Connector

Terminal

E7

2

E103

3

Yes

EXL-42

< DTC/CIRCUIT DIAGNOSIS >

HEADLAMP (LO) CIRCUIT

Does continuity exist?

YES

>> GO TO 11

NO

>> Repair the harness or connector.

11.

CHECK DAYTIME LIGHT RELAY 1

Check daytime light relay 1. Refer to 

EXL-44, "Component Inspection"

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-28, "Removal and Installation of IPDM E/R"

.

NO

>> Replace daytime light relay 1.

Component Inspection

INFOID:0000000009478470

1.

 CHECK DAYTIME LIGHT RELAY 2

1. Turn ignition switch OFF.

2. Remove daytime light relay 2.

3. Check the continuity between daytime light relay 2 terminals under the following conditions.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace daytime light relay 2.

Daytime light relay 1

Ground

Continuity

Connector

Terminal

E103

4

Yes

Terminals

Condition

Continuity

3 and 5

12V direct current supply between terminals 1 and 2

Yes

No current supply

No

DAYTIME LIGHT RELAY CIRCUIT

EXL-43

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

EXL

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DAYTIME LIGHT RELAY CIRCUIT

Description

INFOID:0000000009478471

The BCM sends a daytime light request to the IPDM E/R via the CAN communication lines. The power flows

backward through fuse 45 located in IPDM E/R to daytime light relay 1 and LH high beam lamp to IPDM E/R,

through the high beam fuses, through the RH high beam lamp and on to ground. The high beam lamps are

wired in series which causes them to illuminate at a reduced intensity.

Diagnosis Procedure

INFOID:0000000009478472

Regarding Wiring Diagram information, refer to 

EXL-76, "Wiring Diagram"

.

1.

CHECK DAYTIME LIGHT RELAY 1 FUSE

1. Turn the ignition switch OFF.

2. Check that the following fuse is not open.

Is the fuse open?

YES

>> Replace the fuse after repairing the affected circuit.

NO

>> GO TO 2

2.

CHECK IPDM E/R OUTPUT SIGNAL

1. Turn the ignition switch OFF.

2. Disconnect the daytime light relay 1 connector.

3. Turn the ignition switch ON.

4. Check the voltage between the daytime light relay 1 harness connector and ground.

Is battery voltage present?

YES

>> GO TO 3

NO

>> GO TO 5

3.

CHECK DAYTIME LIGHT RELAY 1 CIRCUIT

1. Turn the ignition switch OFF.

2. Disconnect IPDM E/R connector E122.

3. Check continuity between the IPDM E/R harness connector and the daytime light relay 1 harness connec-

tor.

4. Check continuity between the daytime light relay 1 harness connector and ground.

Is the measurement value normal?

Unit

Location

Fuse No.

Capacity

Daytime light relay 1

IPDM E/R

45

10A

(+)

(

−)

Voltage

Connector

Terminal

E103

2

Ground

Battery voltage

5

IPDM E/R

Daytime light relay 1

Continuity

Connector

Terminal

Connector

Terminal

E122

44

E103

1

Yes

Connector

Terminal

—

Continuity

E103

1

Ground

No

EXL-44

< DTC/CIRCUIT DIAGNOSIS >

DAYTIME LIGHT RELAY CIRCUIT

YES

>> GO TO 4

NO

>> Repair the harnesses or connectors.

4.

CHECK DAYTIME LIGHT RELAY 1

Check daytime light relay 1. Refer to 

EXL-44, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check headlamp (HI) circuit. If OK, replace IPDM E/R. Refer to 

PCS-28, "Removal and Installa-

tion of IPDM E/R"

. If NG, refer to 

EXL-36, "Diagnosis Procedure"

.

NO

>> Replace daytime light relay1.

5.

CHECK DAYTIME LIGHT RELAY CIRCUIT FOR OPEN

1. Turn the ignition switch OFF.

2. Disconnect IPDM E/R connector E119.

3. Check continuity between the IPDM E/R harness connector and the daytime light relay 1 harness connec-

tor.

Does continuity exist?

YES

>> Replace IPDM E/R. Refer to 

PCS-28, "Removal and Installation of IPDM E/R"

.

NO

>> Repair the harnesses or connectors.

Component Inspection

INFOID:0000000009478473

1.

 CHECK DAYTIME LIGHT RELAY 1

1. Turn ignition switch OFF.

2. Remove daytime light relay 1.

3. Check the continuity between daytime light relay 1 terminals under the following conditions.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace daytime light relay 1

IPDM E/R

Daytime light relay 1

Continuity

Connector

Terminal

Connector

Terminal

E119

10

E103

2

Yes

5

Terminals

Condition

Continuity

3 and 5

12V direct current supply between terminals 1 and 2

Yes

No current supply

No

3 and 4

12V direct current supply between terminals 1 and 2

No

No current supply

Yes

 

 

 

 

 

 

 

Content   ..  777  778  779  780   ..