Nissan Maxima. Manual - part 293

CHG-14

< DTC/CIRCUIT DIAGNOSIS >

L TERMINAL CIRCUIT (OPEN)

L TERMINAL CIRCUIT (OPEN)

Description

INFOID:0000000009465974

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:0000000009465975

Regarding Wiring Diagram information. Refer to 

CHG-18, "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 Manual 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-2, "Work Flow (With EXP-800 NI or GR8-1200 NI)"

 or

CHG-5, "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

25

Yes

Combination meter 

Fuse box (J/B)

Continuity 

Connector

Terminal Connector Terminal 

M24

2

M5

12M

Yes

CHG

L TERMINAL CIRCUIT (OPEN)

CHG-15

< 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-122, "Removal and Installation"

.

NO

>> Repair or replace the harness or connectors. 

(+)

(-)

Condition 

Voltage 

(Approx.)

Combination meter 

Connector

Terminal

M24

2

Ground

When the ignition 

switch is in ON position

Battery voltage

CHG-16

< DTC/CIRCUIT DIAGNOSIS >

L TERMINAL CIRCUIT (SHORT)

L TERMINAL CIRCUIT (SHORT)

Description

INFOID:0000000009465976

The terminal “L” 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:0000000009465977

Regarding Wiring Diagram information, refer to 

CHG-18, "Wiring Diagram"

.

1.

CHECK “L” TERMINAL CIRCUIT (SHORT)

1. Turn ignition switch OFF. 

2. Disconnect generator connector.

3. Turn ignition switch ON.
Does charge warning lamp illuminate?

YES

>> GO TO 2.

NO

>> Refer to 

CHG-2, "Work Flow (With EXP-800 NI or GR8-1200 NI)"

 or 

CHG-5, "Work Flow (Without

EXP-800 NI or GR8-1200 NI)"

. 

2.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

1. Turn ignition switch OFF.

2. Disconnect the battery cable from the negative terminal. 

3. Disconnect combination meter connector.

4. Check continuity between the combination meter harness connector and ground.

Is the inspection result normal?

YES

>> Replace the combination meter. Refer to 

MWI-122, "Removal and Installation"

. 

NO

>> Repair or replace the harness or connectors. 

Combination meter

Ground

Continuity

Connector

Terminal

M24

25

No

CHG

S TERMINAL CIRCUIT

CHG-17

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

S TERMINAL CIRCUIT

Description

INFOID:0000000009465978

The output voltage of the generator is controlled by the IC voltage regulator at the “S” terminal detecting the

input voltage. Terminal “S” circuit detects the battery voltage to adjust the generator output voltage with the IC

voltage regulator.

Diagnosis Procedure

INFOID:0000000009465979

Regarding Wiring Diagram information, refer to 

CHG-18, "Wiring Diagram"

.

1.

CHECK “S” TERMINAL CONNECTION

1. Turn ignition switch OFF.

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

YES

>> GO TO 2.

NO

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

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

proper testing procedures. 

2.

CHECK “S” TERMINAL CIRCUIT

Check voltage between generator harness connector and ground.

Is the inspection result normal?

YES

>> Refer to 

CHG-2, "Work Flow (With EXP-800 NI or GR8-1200 NI)"

 or 

CHG-5, "Work Flow (Without

EXP-800 NI or GR8-1200 NI)"

.

NO

>> Check harness for open between generator and fuse.

(+)

(-)

Voltage 

(Approx.)

Generator

Connector Terminal 

F7

3

Ground

Battery voltage