Nissan Pathfinder. Instruction - part 286

CHG-22

< DTC/CIRCUIT DIAGNOSIS >

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPERATION 

INSPECTION

4. Check continuity between generator harness connector and ground.

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-32, "Removal and Installation"

.

NO

>> Repair harness or connectors between IPDM E/R and generator. 

Generator

—

Continuity

Connector

Terminal

F7

4

Ground

No

CHG

B TERMINAL CIRCUIT

CHG-23

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

B TERMINAL CIRCUIT

Description

INFOID:0000000009175270

“B” terminal circuit supplies power to charge the battery and to operate the vehicles electrical system.

Diagnosis Procedure

INFOID:0000000009175271

Regarding Wiring Diagram information. Refer to 

CHG-9, "Wiring Diagram"

.

1.

CHECK “B” TERMINAL CONNECTION

1. Turn ignition switch OFF.

2. Check if “B” terminal is clean and tight.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair terminal “B” connection. Confirm repair by performing complete Charging system test

using the EXP-800 NI or GR8-1200 NI (if available). Refer to applicable Instruction Instruction for

proper testing procedures.

2.

CHECK “B” TERMINAL CIRCUIT

Check voltage between generator “B” terminal and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check harness for open between generator and fusible link.

3.

CHECK “B” TERMINAL CONNECTION (VOLTAGE DROP TEST)

1. Start engine, then engine running at idle and warm.

2. Check voltage between battery positive terminal and generator connector “B” terminal.

Is the inspection result normal?

YES

>> “B” terminal circuit is normal. Refer to 

CHG-14, "Work Flow (With EXP-800 NI or GR8-1200 NI)"

or 

CHG-17, "Work Flow (Without EXP-800 NI or GR8-1200 NI)"

.

NO

>> Check harness between battery and generator for continuity.

(+)

(-)

Voltage 

(Approx.)

Generator

Connector

Terminal

F6

1

Ground

Battery voltage

(+)

(-)

Voltage 

(Approx.)

Generator

Connector

Terminal

F6

1

Battery positive terminal

Less than 0.2V

CHG-24

< DTC/CIRCUIT DIAGNOSIS >

L TERMINAL CIRCUIT (OPEN)

L TERMINAL CIRCUIT (OPEN)

Description

INFOID:0000000009175272

The “L” terminal circuit controls the charge warning lamp. The charge warning lamp turns ON when the igni-

tion switch is set to ON or START. When the generator is providing sufficient voltage with the engine running,

the charge warning lamp turns OFF. If the charge warning lamp illuminates with the engine running, a malfunc-

tion is indicated.

Diagnosis Procedure

INFOID:0000000009175273

Regarding Wiring Diagram information. Refer to 

CHG-9, "Wiring Diagram"

.

1.

CHECK “L” TERMINAL CONNECTION

1. Turn ignition switch OFF.

2. Check if “L” terminal is clean and tight.

 
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair “L” terminal connection. Confirm repair by performing complete Charging system test

using EXP-800 NI or GR8-1200 NI (if available). Refer to applicable Instruction Instruction for proper

testing procedures.

2.

CHECK “L” TERMINAL CIRCUIT (OPEN)

1. Disconnect the generator connector.

2. Apply ground to generator harness connector terminal. 

3. Check condition of the charge warning lamp with the ignition switch in the ON position.

Does it illuminate?

YES

>> “L” terminal circuit is normal. Refer to 

CHG-14, "Work Flow (With EXP-800 NI or GR8-1200 NI)"

 or

CHG-17, "Work Flow (Without EXP-800 NI or GR8-1200 NI)"

.

NO

>> GO TO 3.

3.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Disconnect the battery cable from the negative terminal.

2. Disconnect the combination meter connector.

3. Check continuity between generator harness connector and combination meter harness connector.

is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace the harness or connectors.

4.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Check continuity between combination meter harness connector and fuse block (J/B).

Generator

Ground

Condition

Connector

Terminal 

Ignition switch position

Charge warning lamp

F7

2

ON

Illuminate

Generator

Combination meter

Continuity

Connector

Terminal

Connector

Terminal

F7

2

M24

11

Yes

Combination meter 

Fuse box (J/B)

Continuity 

Connector

Terminal Connector Terminal 

M24

21

M4

8P

Yes

CHG

L TERMINAL CIRCUIT (OPEN)

CHG-25

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace the harness or connectors.

5.

CHECK POWER SUPPLY CIRCUIT 

1. Connect the battery cable to the negative terminal.

2. Check voltage between combination meter harness connector and ground.

Is the inspection result normal?

YES

>> Replace the combination meter. Refer to 

MWI-82, "Removal and Installation"

.

NO

>> Repair or replace the harness or connectors. 

(+)

(-)

Condition 

Voltage 

(Approx.)

Combination meter 

Connector

Terminal

M24

21

Ground

When the ignition 

switch is in ON position

Battery voltage