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 Inspection Procedure.
>>GO TO 2.
2.DIAGNOSIS WITH STARTING/CHARGING SYSTEM TESTER
Perform the charging system test using Starting/Charging System Tester (SST: J-44373). For details and operating instructions, refer to Technical Service Bulletin.
Test result
CHARGING SYSTEM NORMAL>>Charging system is normal and will also show “DIODE RIPPLE” test result.
NO CHARGING VOLTAGE>>GO TO 3.
LOW CHARGING VOLTAGE>>GO TO 11.
HIGH CHARGING VOLTAGE>>GO TO 13.
DIODE RIPPLE NORMAL>>Diode ripple is OK and will also show “CHARGING VOLTAGE” test result.
EXCESS RIPPLE DETECTED>>Replace the alternator. Perform “DIODE RIPPLE” test again using Starting/Charging System Tester (SST: J-44373) to confirm repair.
DIODE RIPPLE NOT DETECTED>>GO TO 3.
3.INSPECTION WITH CHARGE WARNING LAMP (IGNITION SWITCH IS ON)
Turn the 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.
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 (GT-R certified NISSAN dealer).
Is alternator pulley normal?
YES>>Replace alternator.
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.
NO>>Repair as needed.
11.“B” TERMINAL CIRCUIT INSPECTION
Check “B” terminal circuit. Refer to 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 (GT-R certified NISSAN dealer).
Is alternator pulley normal?
YES>>Replace alternator.
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.
NO>>Repair as needed.