Nissan Juke (2012 year). Service Repair Manual - part 38

 

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Nissan Juke (2012 year). Service Repair Manual - part 38

 

 

CHG

COMPONENT PARTS

CHG-5

< SYSTEM DESCRIPTION >

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SYSTEM DESCRIPTION

COMPONENT PARTS

CHARGING SYSTEM

CHARGING SYSTEM : Component Parts Location

INFOID:0000000007579453

CHARGING SYSTEM : Component Description

INFOID:0000000007579454

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM : Component 

1.

Charge warning lamp (On the combi-
nation meter)

2.

Alternator

JMMIA0482ZZ

Component part

Description

Alternator

“B” terminal

Refer to 

CHG-16, "Description"

.

“S” terminal

Refer to 

CHG-20, "Description"

.

“L” terminal

Refer to 

CHG-17, "Description"

.

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.

Revision: 2011 October

2012 JUKE

CHG-6

< SYSTEM DESCRIPTION >

COMPONENT PARTS

Parts Location

INFOID:0000000007579455

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM : Component De-
scription

INFOID:0000000007579456

1.

Alternator

2.

ECM
Refer to 

EC-16, "ENGINE CON-

TROL SYSTEM : 
Component Parts Location"

.

3.

IPDM E/R
Refer to 

PCS-5, "Component Parts 

Location"

 (with Intelligent Key sys-

tem), 

PCS-34, "Component Parts 

Location"

 (without Intelligent Key 

system).

4.

Battery current sensor (with battery 
temperature sensor)

A.

Battery

JMMIA0483ZZ

Component part

Description

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.

Battery current sensor (with battery temperature 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 signal 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.

Revision: 2011 October

2012 JUKE

CHG

SYSTEM

CHG-7

< SYSTEM DESCRIPTION >

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SYSTEM

CHARGING SYSTEM

CHARGING SYSTEM : System Diagram

INFOID:0000000007579457

CHARGING SYSTEM : System Description

INFOID:0000000007579458

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 voltage regulator.

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM : System Dia-
gram

INFOID:0000000007579459

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM : System De-

JPMIA0426GB

JMMIA0388GB

Revision: 2011 October

2012 JUKE

CHG-8

< SYSTEM DESCRIPTION >

SYSTEM

scription

INFOID:0000000007579460

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.

Revision: 2011 October

2012 JUKE

CHG

CHARGING SYSTEM

CHG-9

< WIRING DIAGRAM >

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WIRING DIAGRAM

CHARGING SYSTEM

Wiring Diagram

INFOID:0000000007579461

JCMWA6094GB

Revision: 2011 October

2012 JUKE

CHG-10

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORK FLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORK FLOW

Work Flow

INFOID:0000000007579462

OVEROALL SEQUENCE

DETAILED FLOW

JSMIA0009GB

Revision: 2011 October

2012 JUKE

CHG

DIAGNOSIS AND REPAIR WORK FLOW

CHG-11

< BASIC INSPECTION >

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NOTE:
To ensure a complete and thorough diagnosis, the battery, starter and alternator test segments must be done
as a set from start to finish.

1.

PRELIMINARY INSPECTION

Perform the preliminary inspection. Refer to 

CHG-13, "Inspection Procedure"

.

>> GO TO 2.

2.

STOP POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM

Stop the operation of the power generation voltage variable control in either of the following procedures.
• After selecting “ENGINE” of “SELECT SYSTEM” using CONSULT, set the DUTY value of “ALTERNATOR

DUTY” to 0 % by selecting “ALTERNATOR DUTY” of “Active Test”. Continue “Active Test” until the end of
inspection. (When the DUTY value is 0 or 100 %, the normal power generation is performed according to the
characteristic of the IC voltage regulator of the alternator.)

• Turn the ignition switch OFF, and disconnect the battery current sensor connector. [However, DTC (P1550 -

P1557) of the engine might remain. After finishing the inspection, connect the battery current sensor connec-
tor and erase the self-diagnostic results history of the engine using CONSULT.]

>> GO TO 3.

3.

DIAGNOSIS WITH STARTING/CHARGING SYSTEM TESTER

Perform the charging system test using Starting/Charging System Tester (SST: J-44373). For details and oper-
ating instructions, refer to Technical Service Bulletin.

Test result

CHARGING SYSTEM NOMAL>>Charging system is normal and will also show “DIODE RIPPLE” test result.
NO CHARGING VOLTAGE>>GO TO 4.
LOW CHARGING VOLTAGE>>GO TO 12.
HIGH CHARGING VOLTAGE>>GO TO 14.
DIODE RIPPLE NORMAL>>Diode ripple is OK and will also show “CHARGING VOLTAGE” test result.
EXCESS RIPPLE DETECTED>>Replace the alternator. Perform “DIODE RIPPLE” test again using Starting/

Charging System Tester (SST: J-44373) to confirm repair.

DIODE RIPPLE NOT DETECTED>>GO TO 4.

4.

INSPECTION WITH CHARGE WARNING LAMP (IGNITION SWITCH IS ON)

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

YES

>> GO TO 6.

NO

>> GO TO 5.

5.

“L” TERMINAL CIRCUIT (OPEN) INSPECTION

Check “L” terminal circuit (open). Refer to 

CHG-17, "Diagnosis Procedure"

.

Is the “L” terminal circuit normal?

YES

>> Replace alternator.

NO

>> Repair as needed.

6.

INSPECTION WITH CHARGE WARNING LAMP (IDLING)

Start the engine and run it at idle.

Does the charge warning lamp turn OFF?

YES

>> GO TO 9.

NO

>> GO TO 7.

7.

“L” TERMINAL CIRCUIT (SHORT) INSPECTION

Check “L” terminal circuit (short). Refer to 

CHG-19, "Diagnosis Procedure"

.

Is the “L” terminal circuit normal?

YES

>> GO TO 8.

NO

>> Repair as needed.

Revision: 2011 October

2012 JUKE

CHG-12

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORK FLOW

8.

“S” TERMINAL CIRCUIT INSPECTION

Check “S” terminal circuit. Refer to 

CHG-20, "Diagnosis Procedure"

.

Is the “S” terminal circuit normal?

YES

>> GO TO 10.

NO

>> Repair as needed.

9.

INSPECTION WITH CHARGE WARNING LAMP (ENGINE AT 3,000 RPM)

Increase and maintain the engine speed at 3,000 rpm.

Does the charge warning lamp remain off?

YES

>> GO TO 11.

NO

>> GO TO 10.

10.

INSPECTION OF ALTERNATOR PULLEY

Check alternator pulley. Refer to 

CHG-23, "Inspection"

.

Is alternator pulley normal?

YES

>> Replace alternator.

NO

>> Repair as needed.

11.

“B” TERMINAL CIRCUIT INSPECTION

Check “B” terminal circuit. Refer to 

CHG-16, "Diagnosis Procedure"

.

Is “B” terminal circuit normal?

YES

>> Replace alternator.

NO

>> Repair as needed.

12.

“B” TERMINAL CIRCUIT INSPECTION

Check “B” terminal circuit. Refer to 

CHG-16, "Diagnosis Procedure"

.

Is “B” terminal circuit normal?

YES

>> GO TO 13.

NO

>> Repair as needed.

13.

INSPECTION OF ALTERNATOR PULLEY

Check alternator pulley. Refer to 

CHG-23, "Inspection"

.

Is alternator pulley normal?

YES

>> Replace alternator.

NO

>> Repair as needed.

14.

“S” TERMINAL CIRCUIT INSPECTION

Check “S” terminal circuit. Refer to 

CHG-20, "Diagnosis Procedure"

.

Is the “S” terminal circuit normal?

YES

>> Replace alternator.

NO

>> Repair as needed.

Revision: 2011 October

2012 JUKE

CHG

CHARGING SYSTEM PRELIMINARY INSPECTION

CHG-13

< BASIC INSPECTION >

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CHARGING SYSTEM PRELIMINARY INSPECTION

Inspection Procedure

INFOID:0000000007579463

1.

CHECK BATTERY TERMINALS CONNECTION

Check if battery terminals are clean and tight.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair battery terminals connection.

2.

CHECK FUSE

Check for blown fuse and fusible link.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Be sure to eliminate the cause of malfunction before installing new fuse.

3.

CHECK “E” TERMINAL CONNECTION (ALTERNATOR GROUND)

Check if “E” terminal (alternator ground) is clean and tight.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair “E” terminal (alternator ground) connection.

4.

CHECK DRIVE BELT TENSION

Check drive belt tension. Refer to 

EM-19, "Inspection"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair as needed.

Unit

Power source (Power supply terminals)

Fuse No.

Alternator

Battery (“S” terminal)

35

Combination meter

Ignition switch ON (“L” terminal)

5

Revision: 2011 October

2012 JUKE

CHG-14

< BASIC INSPECTION >

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPERATION 

INSPECTION

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPER-
ATION INSPECTION

Inspection Procedure

INFOID:0000000007579464

CAUTION:

When performing this inspection, always use a charged battery that has completed the battery inspec-
tion. (When the charging rate of the battery is low, the response speed of the voltage change will
become slow. This can cause an incorrect inspection.)

1.

CHECK ECM (CONSULT)

Perform ECM self-diagnosis with CONSULT. Refer to 

EC-73, "CONSULT Function"

.

Self-diagnostic results content

No malfunction detected>> GO TO 2.
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.

2.

CHECK OPERATION OF POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM

1.

Connect CONSULT and start the engine.

2.

Check that the selector lever is in “P” or “N” position and that all of the electric loads and A/C, etc. are
turned OFF.

3.

Select “ALTERNATOR DUTY” at “Active Test” of “ENGINE”, and then check the value of “BATTERY
VOLT” monitor when DUTY value of “ALTERNATOR DUTY” is set to 40.0 %.

4.

Check the value of “BATTERY VOLT” monitor when DUTY value of “ALTERNATOR DUTY” is set to
80.0%.

Is the measurement value within the specification?

YES

>> INSPECTION END

NO

>> GO TO 3.

3.

CHECK IPDM E/R (CONSULT)

Perform IPDM E/R self-diagnosis with CONSULT. Refer to 

PCS-13, "CONSULT Function (IPDM E/R)"

 (with

Intelligent Key system), 

PCS-42, "CONSULT Function (IPDM E/R)"

 (without Intelligent Key system).

Self-diagnostic results content

No malfunction detected>> GO TO 4.
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.

4.

CHECK HARNESS BETWEEN ALTERNATOR AND IPDM E/R

1.

Turn ignition switch OFF.

2.

Disconnect alternator connector and IPDM E/R connector.

3.

Check continuity between alternator harness connector and IPDM E/R harness connector.

“BATTERY VOLT”

2 seconds after setting the 
DUTY value of “ALTERNA-
TOR DUTY” to 40.0 %

: 12 - 13.6 V

“BATTERY VOLT”

20 seconds after setting 
the DUTY value of “ALTER-
NATOR DUTY” to 80.0 %

: +0.5 V or more against 
the value of “BATTERY 
VOLT” monitor when 
DUTY value is 40.0 %

Alternator harness connector

IPDM E/R harness connector

Continuity

Connector

Terminal

Connector

Terminal

F15

5

 E13

33

Existed

Revision: 2011 October

2012 JUKE

CHG

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPERATION 

INSPECTION

CHG-15

< BASIC INSPECTION >

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4.

Check continuity between alternator harness connector and ground.

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

F15

5

Not existed

Revision: 2011 October

2012 JUKE

CHG-16

< DTC/CIRCUIT DIAGNOSIS >

B TERMINAL CIRCUIT

DTC/CIRCUIT DIAGNOSIS

B TERMINAL CIRCUIT

Description

INFOID:0000000007579465

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

Diagnosis Procedure

INFOID:0000000007579466

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-10, "Work Flow"

.

NO

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

Terminals

Voltage (Approx.)

(+)

(–)

Alternator “B” terminal

Terminal

E68

1

Ground

Battery voltage

Terminals

Voltage (Approx.)

(+)

(–)

Alternator “B” terminal

Terminal

Battery positive terminal

E68

Less than 0.2 V

Revision: 2011 October

2012 JUKE

CHG

L TERMINAL CIRCUIT (OPEN)

CHG-17

< DTC/CIRCUIT DIAGNOSIS >

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L TERMINAL CIRCUIT (OPEN)

Description

INFOID:0000000007579467

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:0000000007579468

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 Starting/Charging system

test. Refer to Technical Service Bulletine.

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-10, "Work Flow"

.

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 28 and 10A fuse [No.5 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

F15

3

ON

 Illuminate

Alternator harness connector

Combination meter harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

F15

3

M34

38

Existed

Revision: 2011 October

2012 JUKE

CHG-18

< 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-23, "Wiring Diagram - IGNITION POWER SUPPLY -

"

.

Terminals

Condition

Voltage (Approx.)

(+)

(–)

Combination meter 

harness connector

Terminal

M34

28

Ground

When the ignition switch is in 

ON position

Battery voltage

Revision: 2011 October

2012 JUKE

CHG

L TERMINAL CIRCUIT (SHORT)

CHG-19

< DTC/CIRCUIT DIAGNOSIS >

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L TERMINAL CIRCUIT (SHORT)

Description

INFOID:0000000007579469

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:0000000007579470

1.

CHECK “L” TERMINAL CIRCUIT (SHORT)

1.

Turn ignition switch OFF.

2.

Disconnect alternator connector.

3.

Turn ignition switch ON.

Does charge warning lamp illuminate?

YES

>> GO TO 2.

NO

>> Refer to 

CHG-10, "Work Flow"

.

2.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

1.

Turn the ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Disconnect combination meter connector.

4.

Check continuity between combination meter harness connector and ground.

Is the inspection result normal?

YES

>> Replace combination meter.

NO

>> Repair the harness.

Combination meter harness connector

Ground

Continuity

Connector No.

Terminal No.

M34

38

Not existed

Revision: 2011 October

2012 JUKE

CHG-20

< DTC/CIRCUIT DIAGNOSIS >

S TERMINAL CIRCUIT

S TERMINAL CIRCUIT

Description

INFOID:0000000007579471

The output voltage of the alternator is controlled by the IC voltage regulator at the “S” terminal detecting the
input voltage.
The “S” terminal circuit detects the battery voltage to adjust the alternator output voltage with the IC voltage
regulator.

Diagnosis Procedure

INFOID:0000000007579472

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 Starting/Charging system

test. Refer to Technical Service Bulletin.

2.

CHECK “S” TERMINAL CIRCUIT

Check voltage between alternator harness connector and ground.

Is the inspection result normal?

YES

>> Refer to 

CHG-10, "Work Flow"

.

NO

>> Check harness for open between alternator and fuse.

Terminals

Voltage (Approx.)

(+)

(–)

Alternator harness connector

Terminal

F15

4

Ground

Battery voltage

Revision: 2011 October

2012 JUKE

 

 

 

 

 

 

 

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