Nissan Quest E52. Manual - part 278

CHG

DIAGNOSIS AND REPAIR WORK FLOW

CHG-15

< BASIC INSPECTION >

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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.

1.

PRELIMINARY INSPECTION

Perform the preliminary inspection. Refer to 

CHG-21, "Inspection Procedure"

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JMMIA1147GB

CHG-16

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORK FLOW

>> 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 -

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.

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.

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-25, "Diagnosis Procedure"

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Is the “L” terminal circuit normal?

YES

>> Replace alternator. Refer to 

CHG-31, "Removal and Installation"

.

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-27, "Diagnosis Procedure"

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Is the “L” terminal circuit normal?

YES

>> GO TO 8.

NO

>> Repair as needed.

8.

“S” TERMINAL CIRCUIT INSPECTION

Check “S” terminal circuit. Refer to 

CHG-28, "Diagnosis Procedure"

.

Is the “S” terminal circuit normal?

YES

>> GO TO 10.

NO

>> Repair as needed.

CHG

DIAGNOSIS AND REPAIR WORK FLOW

CHG-17

< BASIC INSPECTION >

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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-32, "Inspection"

.

Is alternator pulley normal?

YES

>> Replace alternator. Refer to 

CHG-31, "Removal and Installation"

.

NO

>> 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"

.

NO

>> 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.

NO

>> Repair as needed.

13.

INSPECTION OF ALTERNATOR PULLEY

Check alternator pulley. Refer to 

CHG-32, "Inspection"

.

Is alternator pulley normal?

YES

>> Replace alternator. Refer to 

CHG-31, "Removal and Installation"

.

NO

>> 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"

.

NO

>> Repair as needed.

CHG-18

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORK FLOW

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

INFOID:0000000009650423

OVERALL SEQUENCE

DETAILED FLOW

1.

PRELIMINARY INSPECTION

Perform the preliminary inspection. Refer to 

CHG-21, "Inspection Procedure"

.

JMMIA1148GB