Nissan Qashqai (2007-2010). Manual — part 1859

CHG-8

< FUNCTION DIAGNOSIS >

CHARGING SYSTEM

FUNCTION DIAGNOSIS

CHARGING SYSTEM

System Diagram

INFOID:0000000000955235

K9K models

HR16DE/MR20DE models

JPMIA0250GB

JPMIA0238GB

CHG

CHARGING SYSTEM

CHG-9

< FUNCTION DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

System Description

INFOID:0000000000955236

The alternator provides DC voltage to operate the vehicle's electrical system and to keep the battery charged.
The voltage output is controlled by the IC regulator.

Component Parts Location

INFOID:0000000000955237

Component Description

INFOID:0000000000955238

1.

Battery

2.

Alternator

3.

Charge warning lamp

A.

Engine room (left side)

B.

Engine

C.

Combination meter

JPMIA0225ZZ

Component part

Description

Alternator

“B” terminal

Refer to

CHG-10, "Description"

.

“S” terminal
(HR16DE/MR20DE models
only)

Refer to

CHG-14, "Description"

.

“L” terminal

Refer to

CHG-11, "Description"

.

Combination meter (Charge warning lamp)

The IC regulator warning function activates to illuminate the
charge warning lamp, if any of the following symptoms occur while
alternator is operating:
• Excessive voltage is produced.
• No voltage is produced.

CHG-10

< COMPONENT DIAGNOSIS >

B TERMINAL CIRCUIT

COMPONENT DIAGNOSIS

B TERMINAL CIRCUIT

Description

INFOID:0000000000955243

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

Diagnosis Procedure

INFOID:0000000000955244

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.

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-3, "K9K MODELS : Work Flow"

(K9K models) or

CHG-4, "HR16DE/MR20DE MODELS : Work Flow"

(HR16DE/MR20DE models).

NO

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

Terminals

Voltage (Approx.)

(+)

(–)

Alternator “B” terminal

Terminal

F59 (K9K)

F14 (HR16DE/MR20DE)

1

Ground

Battery voltage

Terminals

Voltage (Approx.)

(+)

(–)

Alternator “B” terminal

Terminal

Battery positive terminal

F59 (K9K)

F14 (HR16DE/MR20DE)

1

Less than 0.2 V

CHG

L TERMINAL CIRCUIT (OPEN)

CHG-11

< COMPONENT DIAGNOSIS >

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B

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L TERMINAL CIRCUIT (OPEN)

Description

INFOID:0000000000955245

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:0000000000955246

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.

2.

CHECK “L” TERMINAL CIRCUIT (OPEN)

1.

Disconnect alternator connector.

2.

Apply ground to alternator connector harness connector terminal.

3.

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

-

K9K models

-

HR16DE/MR20DE models

Does it illuminate?

YES

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

CHG-3, "K9K MODELS : Work Flow"

(K9K models) or

CHG-

4, "HR16DE/MR20DE MODELS : Work Flow"

(HR16DE/MR20DE models).

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.

-

K9K engine models

-

HR engine/MR engine models

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair the harness or connector.

Alternator harness connector

Terminal

Ground

Condition

Ignition switch position

Charge warning lamp

F60

4

ON

Illuminate

Alternator harness connector

Terminal

Ground

Condition

Ignition switch position

Charge warning lamp

F15

3

ON

Illuminate

Alternator harness connector

Combination meter harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

F60

4

M34

25

Existed

Alternator harness connector

Combination meter harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

F15

3

M34

25

Existed