Nissan Xterra. Instruction — part 162

CHG

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPERATION

INSPECTION

CHG-11

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

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K

L

B

A

O

P

N

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPER-
ATION INSPECTION

Diagnosis Procedure

INFOID:0000000009484982

Regarding Wiring Diagram information, refer to

CHG-18, "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-53, "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 “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 specification?

YES

>> Inspection End.

NO

>> GO TO 3

3.

CHECK IPDM E/R (CONSULT)

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

EC-53, "CONSULT Function"

.

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 GENERATOR AND IPDM E/R

“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-12

< DTC/CIRCUIT DIAGNOSIS >

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPERATION

INSPECTION

1. Turn ignition switch OFF.

2. Disconnect generator connector E205 and IPDM E/R connector

E122.

3. Check continuity between generator harness connector E205

(A) terminal 4 and IPDM E/R harness connector E122 (B) termi-

nal 37.

4. Check continuity between generator harness connector E205

(A) terminal 4 and ground.

Are the continuity test results as specified?

YES

>> Replace IPDM E/R. Refer to

PCS-27, "Removal and Installation"

.

NO

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

A

B

Continuity

Connector

Terminal

Connector

Terminal

E205

4

E122

37

Yes

A

—

Continuity

Connector

Terminal

E205

4

Ground

No

ALMIA0196ZZ

CHG

B TERMINAL CIRCUIT

CHG-13

< DTC/CIRCUIT DIAGNOSIS >

C

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B

A

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P

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B TERMINAL CIRCUIT

Description

INFOID:0000000009484983

The terminal “1” (B) circuit supplies power to charge the battery and operate the vehicles electrical system.

Diagnosis Procedure

INFOID:0000000009484984

Regarding Wiring Diagram information, refer to

CHG-18, "Wiring Diagram"

.

1.

CHECK TERMINAL “1” CONNECTION

1. Turn ignition switch OFF.

2. Verify terminal “1” is clean and tight.
Is the inspection result normal?

YES

>> GO TO 2

NO

>> Repair terminal “1” connection. Confirm repair by performing complete Charging system test

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

testing procedures.

2.

CHECK TERMINAL “1” CIRCUIT

Check voltage between generator connector E206 terminal 1 and

ground.

Is voltage reading as specified?

YES

>> GO TO 3.

NO

>> Check harness for open between generator and fusible

link.

3.

CHECK TERMINAL “1” CONNECTION (VOLTAGE DROP TEST)

1. Start engine, then engine running at idle and warm.

2. Check voltage between battery positive terminal and generator

connector E206 terminal 1.

Is the voltage reading as specified?

YES

>> Terminal “1” circuit is normal. Refer to

CHG-2, "Work

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

or

CHG-5,

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

.

NO

>> Check harness between battery and generator for high resistance.

(+)

(-)

Voltage

Connector

Terminal

E206

1

Ground

Battery voltage

ALMIA0197ZZ

(+)

(-)

Voltage

Connector

Terminal

E206

1

Battery positive terminal

Less than 0.2V

ALMIA0198ZZ

CHG-14

< DTC/CIRCUIT DIAGNOSIS >

L TERMINAL CIRCUIT (OPEN)

L TERMINAL CIRCUIT (OPEN)

Description

INFOID:0000000009484985

The terminal “2” (L) circuit controls the charge warning lamp. The charge warning lamp illuminates when the

ignition switch is set to ON or START. When the generator is providing sufficient voltage with the engine run-

ning, the charge warning lamp will go off. If the charge warning lamp illuminates with the engine running, a

malfunction is indicated.

Diagnosis Procedure

INFOID:0000000009484986

Regarding Wiring Diagram information. Refer to

CHG-18, "Wiring Diagram"

.

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 Charging system test

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

testing procedures.

2.

CHECK “L” TERMINAL CIRCUIT (OPEN)

1. Disconnect the generator connector.

2. Apply ground to generator 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-2, "Work Flow (With EXP-800 NI or GR8-1200 NI)"

or

CHG-5, "Work Flow (Without EXP-800 NI or GR8-1200 NI)"

.

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 generator harness connector and combination meter harness connector.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace the harness or connectors.

4.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Check continuity between combination meter harness connector and fuse block (J/B).

Generator

Ground

Condition

Connector

Terminal

Ignition switch position

Charge warning lamp

E205

2

ON

Illuminate

Generator

Combination meter

Continuity

Connector

Terminal

Connector

Terminal

E205

2

M24

2

Yes

Combination meter

Fuse box (J/B)

Continuity

Connector

Terminal Connector Terminal

M24

16

M4

5P

Yes