Work Flow

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 

Courtesy of NISSAN NORTH AMERICA, INC.

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 Inspection Procedure .

   >>

   GO TO 2.

2. 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 3.

   LOW VOLTAGE>>

   GO TO 11.

   HIGH VOLTAGE>>

   GO TO 13.

   EXCESSIVE RIPPLE, OPEN PHASE, OPEN DIODE or SHORTED DIODE>>

   Replace the alternator. 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.

3. INSPECTION WITH CHARGE WARNING LAMP (IGNITION SWITCH IS ON) 

   Ignition switch ON. Does the charge warning lamp illuminate?

   YES>>

   GO TO 5.

   NO>>

   GO TO 4.

4. "L" TERMINAL CIRCUIT (OPEN) INSPECTION 

   Check "L" terminal circuit (open). Refer to Diagnosis Procedure . Is the "L" terminal circuit normal?

   YES>>

   Replace alternator. Refer to Removal and Installation .

   NO>>

   Repair as needed.

5. INSPECTION WITH CHARGE WARNING LAMP (IDLING) 

   Start the engine and run it at idle. Does the charge warning lamp turn OFF?

   YES>>

   GO TO 8.

   NO>>

   GO TO 6.

6. "L" TERMINAL CIRCUIT (SHORT) INSPECTION 

   Check "L" terminal circuit (short). Refer to Diagnosis Procedure . Is the "L" terminal circuit normal?

   YES>>

   GO TO 7.

   NO>>

   Repair as needed.

7. "S" TERMINAL CIRCUIT INSPECTION 

   Check "S" terminal circuit. Refer to Diagnosis Procedure . Is the "S" terminal circuit normal?

   YES>>

   GO TO 9.

   NO>>

   Repair as needed.

8. 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 10.

   NO>>

   GO TO 9.

9. INSPECTION OF ALTERNATOR PULLEY 

   Check alternator pulley. Refer to Inspection . Is alternator pulley normal?

   YES>>

   Replace alternator. Refer to Removal and Installation .

   NO>>

   Repair as needed.

10. "B" TERMINAL CIRCUIT INSPECTION 

    Check "B" terminal circuit. Refer to Diagnosis Procedure . Is "B" terminal circuit normal?

    YES>>

    Replace alternator. Refer to Removal and Installation .

    NO>>

    Repair as needed.

11. "B" TERMINAL CIRCUIT INSPECTION 

    Check "B" terminal circuit. Diagnosis Procedure Is "B" terminal circuit normal?

    YES>>

    GO TO 12.

    NO>>

    Repair as needed.

12. INSPECTION OF ALTERNATOR PULLEY 

    Check alternator pulley. Refer to Inspection . Is alternator pulley normal?

    YES>>

    Replace alternator. Refer to Removal and Installation .

    NO>>

    Repair as needed.

13. "S" TERMINAL CIRCUIT INSPECTION 

    Check "S" terminal circuit. Refer to Diagnosis Procedure . Is the "S" terminal circuit normal?

    YES>>

    Replace alternator. Refer to Removal and Installation .

    NO>>

    Repair as needed.

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

OVERALL SEQUENCE 

Courtesy of NISSAN NORTH AMERICA, INC.

DETAILED FLOW 

1. PRELIMINARY INSPECTION 

   Perform the preliminary inspection. Refer to Inspection Procedure .

   >>

   GO TO 2.

2. 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 3.

   NO>>

   GO TO 9.

3. INSPECTION WITH CHARGE WARNING LAMP (IDLING) 

   Start the engine and run it at idle. Does the charge warning lamp turn OFF?

   YES>>

   GO TO 4.

   NO>>

   GO TO 5.

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

   Increase and maintain the engine speed at 2500 RPM. Does the charge warning lamp illuminate?

   YES>>

   GO TO 7.

   NO>>

   INSPECTION END

5. "L" TERMINAL CIRCUIT (SHORT) INSPECTION 

   Check "L" terminal circuit (short). Refer to Diagnosis Procedure . Is the inspection result normal?

   YES>>

   GO TO 6.

   NO>>

   Repair as needed.

6. "S" TERMINAL CIRCUIT INSPECTION 

   Check "S" terminal circuit. Refer to Diagnosis Procedure . Is the inspection result normal?

   YES>>

   GO TO 7.

   NO>>

   Repair as needed.

7. 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 8.

   More than 16.0 V>>

   Replace alternator. Refer to Removal and Installation .

8. "B" TERMINAL CIRCUIT INSPECTION 

   Check "B" terminal circuit. Refer to Diagnosis Procedure . Is the inspection result normal?

   YES>>

   Replace alternator. Refer to Removal and Installation .

   NO>>

   Repair as needed.

9. INSPECTION WITH CHARGE WARNING LAMP (IGNITION SWITCH IS ON) 
   1. Disconnect alternator connector and apply ground to "L" terminal.
   2. Ignition switch ON.

   Does the charge warning lamp illuminate?

   YES>>

   Replace alternator. Refer to Removal and Installation .

   NO>>

   GO TO 10.

10. CHECK "L" TERMINAL CIRCUIT (OPEN) 

    Check "L" terminal circuit (open). Refer to Diagnosis Procedure .

    >>

    Repair as needed.