Nissan Teana J32. Manual - part 276

CHG

CHARGING SYSTEM

CHG-5

< FUNCTION DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

FUNCTION DIAGNOSIS

CHARGING SYSTEM

System Diagram

INFOID:0000000003860509

System Description

INFOID:0000000003860510

 The voltage output is controlled by the IC voltage regulator.

Component Parts Location

INFOID:0000000003860511

Component Description

INFOID:0000000003860512

JPMIA0426GB

1.

Alternator

2.

Charge warning lamp

A.

Cylinder block bank2 side

B.

Combination meter

JPLIA0887ZZ

CHG-6

< FUNCTION DIAGNOSIS >

CHARGING SYSTEM

Component part

Description

Alternator

The alternator provides DC voltage to operate the vehicle's electri-
cal system and to keep the battery charged.

Combination meter (Charge warning lamp)

The IC voltage 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

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM

CHG-7

< FUNCTION DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM

System Diagram

INFOID:0000000003860517

System Description

INFOID:0000000003860518

By performing the power generation voltage variable control, the engine load due to the power generation of
the alternator is reduced and fuel consumption is decreased.
NOTE:
When any malfunction is detected in the power generation voltage variable control system, the power genera-
tion is performed according to the characteristic of the IC voltage regulator of the alternator.

Component Parts Location

INFOID:0000000003860519

JPMIA0632GB

1.

ECM

2.

IPDM E/R

3.

Battery current sensor

4.

Alternator

A.

Engine room dash panel (LH)

B.

Battery

C.

Cylinder block bank2 side

JPLIA0888ZZ

CHG-8

< FUNCTION DIAGNOSIS >

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM

Component Description

INFOID:0000000003860520

Component part

Description

Battery current sensor

Battery current sensor is installed to the battery cable at the neg-
ative terminal, and it detects the charging/discharging current of 
the battery and sends the voltage signal to ECM according to the 
current value.

ECM

Battery current sensor detects the charging/discharging current of 
the battery. ECM judges the battery condition based on this signal.
ECM judges whether to perform the power generation voltage 
variable control according to the battery condition.
When performing the power generation voltage variable control, 
ECM calculates the target power generation voltage according to 
the battery condition and sends the calculated value as the power 
generation command value to IPDM E/R.

IPDM E/R

IPDM E/R converts the received power generation command val-
ue into the power generation command signal (PWM signal) and 
sends it to the IC voltage regulator.

Alternator (IC voltage regulator)

IC voltage regulator controls the power generation voltage by the 
target power generation voltage based on the received power gen-
eration command signal.
When there is no power generation command signal, the alterna-
tor performs the normal power generation according to the char-
acteristic of the IC voltage regulator.