Nissan Versa

 Sedan Service Manual

Electrical & power control » Charging system (CHG) » Diagnosis and repair workflow
Work Flow (With EXP-800 NI or GR8-1200 NI)

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.

OVERALL SEQUENCE

DETAILED FLOW

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

1.PRELIMINARY INSPECTION

Perform the preliminary inspection. Refer to CHG "Diagnosis 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" 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 regulator of the generator.)
• 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 connector 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 generator. Refer to CHG "Removal and Installation". Perform "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 "Diagnosis Procedure".

Is the "L" terminal circuit normal?

YES >> Replace generator. Refer to CHG "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 "Diagnosis Procedure".

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 "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 GENERATOR PULLEY

Check generator pulley. Refer to CHG"Removal and Installation".

Is generator pulley normal?

YES >> Replace generator. Refer to CHG "Removal and Installation".

NO >> Repair as needed.

11."B" TERMINAL CIRCUIT INSPECTION

Check "B" terminal circuit. Refer to CHG "Diagnosis Procedure".

Is "B" terminal circuit normal?

YES >> Replace generator. Refer to CHG "Removal and Installation".

NO >> Repair as needed.

12."B" TERMINAL CIRCUIT INSPECTION

Check "B" terminal circuit. Refer to CHG "Diagnosis Procedure".

Is "B" terminal circuit normal?

YES >> GO TO 13.

NO >> Repair as needed.

13.INSPECTION OF GENERATOR PULLEY

Check generator pulley. Refer to CHG "Removal and Installation".

Is generator pulley normal?

YES >> Replace generator. Refer to CHG"Removal and Installation".

NO >> Repair as needed.

14."S" TERMINAL CIRCUIT INSPECTION

Check "S" terminal circuit. Refer to CHG "Diagnosis Procedure".

Is the "S" terminal circuit normal?

YES >> Replace generator. Refer to CHG "Removal and Installation".

NO >> Repair as needed.

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

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