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Nissan Juke (2014 year). Service Repair Manual - part 41

CHG-10

< WIRING DIAGRAM >

CHARGING SYSTEM

WIRING DIAGRAM

CHARGING SYSTEM

Wiring Diagram

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JCMWA6094GB

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CHARGING SYSTEM

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< WIRING DIAGRAM >

JRMWE7915GB

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< WIRING DIAGRAM >

CHARGING SYSTEM

JRMWE7916GB

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CHARGING SYSTEM

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< WIRING DIAGRAM >

JRMWE7917GB

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< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORK FLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORK FLOW

Work Flow (With EXP-800 NI or GR8-1200 NI)

INFOID:0000000009754940

CHARGING SYSTEM DIAGNOSIS WITH EXP-800 NI OR GR8-1200 NI

To test the charging system, use the following special service tools:
• EXP-800 NI Battery and electrical diagnostic analyzer
• GR8-1200 NI Multitasking battery and electrical diagnostic station
NOTE:
Refer to the applicable Instruction Manual for proper charging system diagnosis procedures.

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DIAGNOSIS AND REPAIR WORK FLOW

CHG-15

< BASIC INSPECTION >

OVERALL SEQUENCE

DETAILED FLOW

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.

PRELIMINARY INSPECTION

Perform the preliminary inspection. Refer to

CHG-21, "Inspection Procedure"

JMMIA1147GB

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< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORK FLOW

>> GO TO 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 -

P1554) of the engine might remain. After finishing the inspection, connect the battery current sensor connec-
tor and erase the self-diagnosis results history of the engine using CONSULT.]

>> GO TO 3.

DIAGNOSIS WITH EXP-800 NI OR GR8-1200 NI

Perform the charging system test using Multitasking battery and electrical diagnostic station GR8-1200 NI or
Battery and electrical diagnostic analyzer EXP-800 NI. Refer to the applicable Instruction Manual for proper
testing procedures.
Test result

NO PROBLEMS>>Charging system is normal and will also show “DIODE RIPPLE” test result.
NO VOLTAGE>>GO TO 4.
LOW VOLTAGE>>GO TO 12.
HIGH VOLTAGE>>GO TO 14.
EXCESSIVE RIPPLE, OPEN PHASE, OPEN DIODE or SHORTED DIODE>>Replace the alternator. Per-

form “DIODE RIPPLE” test again using Multitasking battery and electrical diagnostic station GR8-
1200 NI or Battery and electrical diagnostic analyzer EXP-800 NI to confirm repair.

INSPECTION WITH CHARGE WARNING LAMP (IGNITION SWITCH IS ON)

Turn the ignition switch ON.

Does the charge warning lamp illuminate?

YES

>> GO TO 6.

>> GO TO 5.

“L” TERMINAL CIRCUIT (OPEN) INSPECTION

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

CHG-25, "Diagnosis Procedure"

Is the “L” terminal circuit normal?

YES

>> Replace alternator. Refer to

CHG-31, "Removal and Installation"

>> Repair as needed.

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.

>> GO TO 7.

“L” TERMINAL CIRCUIT (SHORT) INSPECTION

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

CHG-27, "Diagnosis Procedure"

Is the “L” terminal circuit normal?

YES

>> GO TO 8.

>> Repair as needed.

“S” TERMINAL CIRCUIT INSPECTION

Check “S” terminal circuit. Refer to

CHG-28, "Diagnosis Procedure"

Is the “S” terminal circuit normal?

YES

>> GO TO 10.

>> Repair as needed.

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DIAGNOSIS AND REPAIR WORK FLOW

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< BASIC INSPECTION >

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.

>> GO TO 10.

10.

INSPECTION OF ALTERNATOR PULLEY

Check alternator pulley. Refer to

CHG-31, "Inspection"

Is alternator pulley normal?

YES

>> Replace alternator. Refer to

CHG-31, "Removal and Installation"

>> Repair as needed.

11.

“B” TERMINAL CIRCUIT INSPECTION

Check “B” terminal circuit. Refer to

CHG-24, "Diagnosis Procedure"

Is “B” terminal circuit normal?

YES

>> Replace alternator. Refer to

CHG-31, "Removal and Installation"

>> Repair as needed.

12.

“B” TERMINAL CIRCUIT INSPECTION

Check “B” terminal circuit. Refer to

CHG-24, "Diagnosis Procedure"

Is “B” terminal circuit normal?

YES

>> GO TO 13.

>> Repair as needed.

13.

INSPECTION OF ALTERNATOR PULLEY

Check alternator pulley. Refer to

CHG-31, "Inspection"

Is alternator pulley normal?

YES

>> Replace alternator. Refer to

CHG-31, "Removal and Installation"

>> Repair as needed.

14.

“S” TERMINAL CIRCUIT INSPECTION

Check “S” terminal circuit. Refer to

CHG-28, "Diagnosis Procedure"

Is the “S” terminal circuit normal?

YES

>> Replace alternator. Refer to

CHG-31, "Removal and Installation"

>> Repair as needed.

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CHG-18

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORK FLOW

Work Flow (Without EXP-800 NI or GR8-1200 NI)

INFOID:0000000009754941

OVERALL SEQUENCE

DETAILED FLOW

PRELIMINARY INSPECTION

Perform the preliminary inspection. Refer to

CHG-21, "Inspection Procedure"

JMMIA1148GB

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DIAGNOSIS AND REPAIR WORK FLOW

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< BASIC INSPECTION >

>> GO TO 2.

STOP POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM

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

P1554) 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.

INSPECTION WITH CHARGE WARNING LAMP (IGNITION SWITCH IS TURNED ON)

When ignition switch is turned ON
Does the charge warning lamp illuminate?

YES

>> GO TO 4.

>> GO TO 10.

INSPECTION WITH CHARGE WARNING LAMP (IDLING)

Start the engine and run it at idle.

Does the charge warning lamp turn OFF?

YES

>> GO TO 5.

>> GO TO 6.

INSPECTION WITH CHARGE WARNING LAMP (ENGINE AT 2,500 RPM)

Increase and maintain the engine speed at 2,500 rpm.

Does the charge warning lamp illuminate?

YES

>> GO TO 8.

>> INSPECTION END

“L” TERMINAL CIRCUIT (SHORT) INSPECTION

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

CHG-27, "Diagnosis Procedure"

Is the inspection result normal?

YES

>> GO TO 7.

>> Repair as needed.

“S” TERMINAL CIRCUIT INSPECTION

Check “S” terminal circuit. Refer to

CHG-28, "Diagnosis Procedure"

Is the inspection result normal?

YES

>> GO TO 8.

>> Repair as needed.

MEASURE “B” TERMINAL VOLTAGE

Start engine. With engine running at 2,500 rpm, measure “B” terminal voltage.

What voltage does the measurement result show?

Less than 13.0 V>>GO TO 9.
More than 16.0 V>>Replace alternator. Refer to

CHG-31, "Removal and Installation"

“B” TERMINAL CIRCUIT INSPECTION

Check “B” terminal circuit. Refer to

CHG-24, "Diagnosis Procedure"

Is the inspection result normal?

YES

>> Replace alternator. Refer to

CHG-31, "Removal and Installation"

>> Repair as needed.

10.

INSPECTION WITH CHARGE WARNING LAMP (IGNITION SWITCH IS ON)

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< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORK FLOW

Disconnect alternator connector and apply ground to “L” terminal.

Turn the ignition switch ON.

Does the charge warning lamp illuminate?

YES

>> Replace alternator. Refer to

CHG-31, "Removal and Installation"

>> GO TO 11.

11.

CHECK “L” TERMINAL CIRCUIT (OPEN)

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

CHG-25, "Diagnosis Procedure"

>> Repair as needed.

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CHARGING SYSTEM PRELIMINARY INSPECTION

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< BASIC INSPECTION >

CHARGING SYSTEM PRELIMINARY INSPECTION

Inspection Procedure

INFOID:0000000009754942

CHECK BATTERY TERMINALS CONNECTION

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

YES

>> GO TO 2.

>> Repair battery terminals connection.

CHECK FUSE

Check for blown fuse and fusible link.

Is the inspection result normal?

YES

>> GO TO 3.

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

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.

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

CHECK DRIVE BELT TENSION

Check drive belt tension. Refer to

EM-19, "Inspection"

Is the inspection result normal?

YES

>> INSPECTION END

>> Repair as needed.

Unit

Power source (Power supply terminals)

Fuse No.

Alternator

Battery (“S” terminal)

Combination meter

Ignition switch ON (“L” terminal)

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< BASIC INSPECTION >

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPERATION

INSPECTION

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPER-
ATION INSPECTION

Inspection Procedure

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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.)

CHECK ECM (CONSULT)

Perform ECM self-diagnosis with CONSULT. Refer to

EC-71, "CONSULT Function"

Self-diagnostic results content

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

CHECK OPERATION OF POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM

Connect CONSULT and start the engine.

Check that the selector lever is in “P” or “N” position (CVT models) or shifter lever is in neutral position (M/
T models) and that all of the electric loads and A/C, etc. are turned OFF.

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 %.

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

>> GO TO 3.

CHECK IPDM E/R (CONSULT)

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

PCS-14, "CONSULT Function (IPDM E/R)"

(with

Intelligent Key system),

PCS-45, "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.

CHECK HARNESS BETWEEN ALTERNATOR AND IPDM E/R

Turn ignition switch OFF.

Disconnect alternator connector and IPDM E/R connector.

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

E13

Existed

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POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPERATION

INSPECTION

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< BASIC INSPECTION >

Check continuity between alternator harness connector and ground.

Is the inspection result normal?

YES

>> Replace IPDM E/R.

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

Alternator harness connector

Ground

Continuity

Connector

Terminal

F15

Not existed

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CHG-24

< DTC/CIRCUIT DIAGNOSIS >

B TERMINAL CIRCUIT

DTC/CIRCUIT DIAGNOSIS

B TERMINAL CIRCUIT

Description

INFOID:0000000009754944

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

Diagnosis Procedure

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CHECK “B” TERMINAL CONNECTION

Turn ignition switch OFF.

Check if “B” terminal is clean and tight.

Is the inspection result normal?

YES

>> GO TO 2.

>> 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.

CHECK “B” TERMINAL CIRCUIT

Check voltage between alternator “B” terminal and ground.

Is the inspection result normal?

YES

>> GO TO 3.

>> Check harness for open between alternator and fusible link.

CHECK “B” TERMINAL CONNECTION (VOLTAGE DROP TEST)

Start engine, then engine running at idle and warm.

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)"

CHG-18, "Work Flow (Without EXP-800 NI or GR8-1200 NI)"

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

Terminals

Voltage (Approx.)

(+)

(–)

Alternator “B” terminal

Terminal

E68

Ground

Battery voltage

Terminals

Voltage (Approx.)

(+)

(–)

Alternator “B” terminal

Terminal

Battery positive terminal

E68

Less than 0.2 V

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L TERMINAL CIRCUIT (OPEN)

CHG-25

< DTC/CIRCUIT DIAGNOSIS >

L TERMINAL CIRCUIT (OPEN)

Description

INFOID:0000000009754946

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:0000000009754947

CHECK “L” TERMINAL CONNECTION

Turn ignition switch OFF.

Check if “L” terminal is clean and tight.

Is the inspection result normal?

YES

>> GO TO 2.

>> 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.

CHECK “L” TERMINAL CIRCUIT (OPEN)

Disconnect alternator connector.

Apply ground to alternator harness connector terminal.

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)"

CHG-18, "Work Flow (Without EXP-800 NI or GR8-1200 NI)"

>> GO TO 3.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Disconnect the battery cable from the negative terminal.

Disconnect the combination meter connector.

Check continuity between alternator harness connector and combination meter harness connector.

Is the inspection result normal?

YES

>> GO TO 4.

>> Repair the harness or connector.

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.

>> Repair the harness.

CHECK POWER SUPPLY CIRCUIT

Connect the battery cable to the negative terminal.

Check voltage between combination meter harness connector and ground.

Alternator harness connector

Terminal

Ground

Condition

Ignition switch position

Charge warning lamp

F15

Illuminate

Alternator harness connector

Combination meter harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

F15

M34

Existed

Revision: 2013 October

2014 JUKE

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