Nissan Sentra. Manual - part 201

CHG-20

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CHARGING SYSTEM PRELIMINARY INSPECTION

DTC/CIRCUIT DIAGNOSIS

CHARGING SYSTEM PRELIMINARY INSPECTION

Diagnosis Procedure

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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 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 FUSE

Check for blown fuse and fusible link.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace the blown fuse or fusible link after repairing the affected circuit.

3.

CHECK GENERATOR GROUND TERMINAL CONNECTION

Check if connector F17 terminal 5 and 6 is clean.
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair connection.

4.

CHECK DRIVE BELT TENSION

Check drive belt tension. Refer to 

CHG-29, "Removal and Installation"

.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair as needed.

Unit

Power source (Power supply terminals)

Fuse or Fusible Link

Generator

Battery (terminal 3)

Fuse 27 (10A)

Battery (terminal 1)

Fusible Link A (140A)

Combination meter

Ignition switch ON (terminal 2)

Fuse 3 (10A)

CHG

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPERATION 

INSPECTION

CHG-21

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POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPER-
ATION INSPECTION

Diagnosis Procedure

INFOID:0000000009755964

Regarding Wiring Diagram information. Refer to  

CHG-9, "Wiring Diagram"

.

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-66, "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. The selector lever is in “P” or “N” position and all of the electric loads and A/C, etc. are turned OFF.

3. Select “ALTERNATOR DUTY” in “Active Test” of “ENGINE”, and then check the value of “BATTERY

VOLT” monitor when DUTY value of “DUTY” is set to 40.0 %.

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

Is the inspection result normal?

YES

>> Inspection End.

NO

>> GO TO 3.

3.

CHECK IPDM E/R (CONSULT)

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

PCS-10, "CONSULT Function (IPDM E/R)"

 (with

Intelligent Key system) or 

PCS-38, "CONSULT Function (IPDM E/R)"

 (without Intelligent Key system).

Is the inspection result normal?

No malfunction detected>> GO TO 4.

Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.

4.

CHECK HARNESS BETWEEN GENERATOR AND IPDM E/R

1. Turn ignition switch OFF.

2. Disconnect generator connector and IPDM E/R connector.

3. Check continuity between generator 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 %

CHG-22

< DTC/CIRCUIT DIAGNOSIS >

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPERATION 

INSPECTION

4. Check continuity between generator harness connector and ground.

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-30, "Removal and Installation"

.

NO

>> Repair harness or connectors between IPDM E/R and generator. 

Generator IPDM 

E/R

Continuity

Connector

Terminal

Connector

Terminal

F15

4

E46

47

Yes

Generator

—

Continuity

Connector

Terminal

F15

4

Ground

No

CHG

B TERMINAL CIRCUIT

CHG-23

< DTC/CIRCUIT DIAGNOSIS >

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B TERMINAL CIRCUIT

Description

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

Diagnosis Procedure

INFOID:0000000009755966

Regarding Wiring Diagram information. Refer to 

CHG-9, "Wiring Diagram"

.

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 terminal “B” connection. Confirm repair by performing complete Charging system test

using the EXP-800 NI or GR8-1200 NI (if available). Refer to applicable Instruction Manual for

proper testing procedures.

2.

CHECK “B” TERMINAL CIRCUIT

Check voltage between generator “B” terminal and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check harness for open between generator 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 generator connector “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-17, "Work Flow (Without EXP-800 NI or GR8-1200 NI)"

.

NO

>> Check harness between battery and generator for continuity.

(+)

(-)

Voltage 

(Approx.)

Generator

Connector

Terminal

F14

1

Ground

Battery voltage

(+)

(-)

Voltage 

(Approx.)

Generator

Connector

Terminal

F14

1

Battery positive terminal

Less than 0.2V