Detailed Flow

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

DIAGNOSIS PROCEDURE

Step	Action	YES	NO
1	PRELIMINARY INSPECTION Perform the preliminary inspection. Refer to [CHARGING SYSTEM PRELIMINARY INSPECTION ].	GO TO 2
2	DISABLE THE POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM Disable the power generation voltage variable control with either of the following procedures. After selecting "Engine / Powertrain" on the "SELECT SYSTEM" screen of SDT, set the "ALTERNATOR DUTY" value to 0% by selecting "ALTERNATOR DUTY" with "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, disconnect the battery current sensor connector and leave it disconnected during the course of the test.	GO TO 3
3	DIAGNOSIS WITH STARTING/CHARGING SYSTEM TESTER Perform the charging system test using Starting/Charging System Tester (J-44373). For details and operating instructions, refer to Technical Service Bulletin . Test result	Charging system is normal and will also show "DIODE RIPPLE" test result.	GO TO 4
4	INSPECTION WITH CHARGE WARNING LAMP (IGNITION SWITCH IS ON) Turn the ignition switch ON. Does the charge warning lamp illuminate?	GO TO 6	GO TO 5
5	TERMINAL "2" (OPEN) CIRCUIT INSPECTION Check terminal "2" circuit for open circuits. Refer to [L TERMINAL CIRCUIT CHECK ]. Is the terminal "2" circuit normal?	Replace generator. Refer to [GENERATOR: REMOVAL AND INSTALLATION - QR25DE MODELS ] or [GENERATOR: REMOVAL AND INSTALLATION - VQ40DE MODELS ].	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?	GO TO 9	GO TO 7
7	TERMINAL "2" (SHORT) CIRCUIT INSPECTION Check terminal "2" circuit for short to ground. Refer to [L TERMINAL CIRCUIT CHECK ]. Is the terminal "2" circuit normal?	GO TO 8	Repair as needed.
8	TERMINAL "3" CIRCUIT INSPECTION Check terminal "3" circuit. Refer to [S TERMINAL CIRCUIT CHECK ]. Is the terminal "3" circuit normal?	GO TO 10	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?	GO TO 11	GO TO 10
10	INSPECTION OF GENERATOR PULLEY Check generator pulley. Is generator pulley normal?	Replace generator. Refer to [GENERATOR: REMOVAL AND INSTALLATION - QR25DE MODELS ] or [GENERATOR: REMOVAL AND INSTALLATION - VQ40DE MODELS ].	Repair as needed.
11	TERMINAL "1" CIRCUIT INSPECTION Check terminal "1" circuit. Refer to [B TERMINAL CIRCUIT CHECK ]. Is terminal "1" circuit normal?	Replace generator. Refer to [GENERATOR: REMOVAL AND INSTALLATION - QR25DE MODELS ] or [GENERATOR: REMOVAL AND INSTALLATION - VQ40DE MODELS ].	Repair as needed.
12	TERMINAL "1" CIRCUIT INSPECTION Check terminal "1" circuit. Refer to [B TERMINAL CIRCUIT CHECK ]. Is terminal "1" circuit normal?	GO TO 13	Repair as needed.
13	INSPECTION OF GENERATOR PULLEY Check generator pulley. Is generator pulley normal?	Replace generator. Refer to [GENERATOR: REMOVAL AND INSTALLATION - QR25DE MODELS ] or [GENERATOR: REMOVAL AND INSTALLATION - VQ40DE MODELS ].	Repair as needed.
14	TERMINAL "3" CIRCUIT INSPECTION Check terminal "3" circuit. Refer to [S TERMINAL CIRCUIT CHECK ]. Is the terminal "3" circuit normal?	Replace generator. Refer to [GENERATOR: REMOVAL AND INSTALLATION - QR25DE MODELS ] or [GENERATOR: REMOVAL AND INSTALLATION - VQ40DE MODELS ].	Repair as needed.