Nissan Quest E52. Manual - part 280

CHG

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPERATION 

INSPECTION

CHG-23

< BASIC INSPECTION >

C

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F

G

H

I

J

K

L

B

A

O

P

N

Is the inspection result normal?

YES

>> Replace IPDM E/R.

NO

>> Repair harness or connector between IPDM E/R and alternator. 

Alternator harness connector

Ground

Continuity

Connector

Terminal

F60

5

Not existed

CHG-24

< DTC/CIRCUIT DIAGNOSIS >

B TERMINAL CIRCUIT

DTC/CIRCUIT DIAGNOSIS

B TERMINAL CIRCUIT

Description

INFOID:0000000009650426

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

Diagnosis Procedure

INFOID:0000000009650427

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 “B” 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 “B” TERMINAL CIRCUIT

Check voltage between alternator “B” terminal and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check harness for open between alternator 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 alternator “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-18, "Work Flow (Without EXP-800 NI or GR8-1200 NI)"

.

NO

>> Check harness between battery and alternator for poor continuity.

Terminals

Voltage (Approx.)

(+)

(–)

Alternator “B” terminal

Terminal

F59

1

Ground

Battery voltage

Terminals

Voltage (Approx.)

(+)

(–)

Alternator “B” terminal

Terminal

Battery positive terminal

F59

1 

Less than 0.2 V

CHG

L TERMINAL CIRCUIT (OPEN)

CHG-25

< DTC/CIRCUIT DIAGNOSIS >

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L TERMINAL CIRCUIT (OPEN)

Description

INFOID:0000000009650428

The “L” terminal circuit controls the charge warning lamp. The charge warning lamp illuminates when the igni-
tion switch is set to ON or START. When the alternator is providing sufficient voltage with the engine running,
the charge warning lamp will go off. If the charge warning lamp illuminates with the engine running, a malfunc-
tion is indicated.

Diagnosis Procedure

INFOID:0000000009650429

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 the applicable Instruction Manual for
proper testing procedures.

2.

CHECK “L” TERMINAL CIRCUIT (OPEN)

1.

Disconnect alternator connector.

2.

Apply ground to alternator 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-18, "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 alternator harness connector and combination meter harness connector.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair the harness or connector.

4.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Check continuity between combination meter harness connector M34 terminal 2 and 10A fuse [No.4 located in
the fuse block (J/B)].

Does continuity exist?

YES

>> GO TO 5.

NO

>> Repair the harness.

5.

CHECK POWER SUPPLY CIRCUIT

1.

Connect the battery cable to the negative terminal.

2.

Check voltage between combination meter harness connector and ground.

Alternator harness connector

Terminal

Ground

Condition

Ignition switch position

Charge warning lamp

F60

3

ON

 Illuminate

Alternator harness connector

Combination meter harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

F60

3

M34

25

Existed

CHG-26

< DTC/CIRCUIT DIAGNOSIS >

L TERMINAL CIRCUIT (OPEN)

Is the inspection result normal?

YES

>> Replace combination meter.

NO

>> Inspect the power supply circuit. Refer to 

PG-54, "Wiring Diagram - IGNITION POWER SUPPLY -

"

.

Terminals

Condition

Voltage (Approx.)

(+)

(–)

Combination meter 

harness connector

Terminal

M34

2

Ground

When the ignition switch is in 

ON position

Battery voltage