Special Tools Required

Alternator, Regulator, Battery & Starter tester OTC3131 Available through the Honda Tool and Equipment Program 888-424-6857

1. Make sure the battery connections are good and the battery is sufficiently charged.
2. Connect the alternator, regulator, battery & starter tester (OTC3131) to the battery as shown below.
   Fig 1: Connecting Alternator, Regulator, Battery & Starter Tester (OTC3131) To Battery

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
3. Start the engine. Hold the engine speed at 3, 000 rpm with no load (in N or P (A/T model) or neutral (M/T model)) until the radiator fan comes on, then let it idle.
4. Do the charging system test.
5. Raise the engine speed to 2, 000 rpm, and hold it there.

   Is the voltage within 13.5 - 15.1 V? 

   YES  - Go to step  6.

   NO  - Based on the following symptoms, take the appropriate action:

   • If the voltage less than 13.5 V, go to ALTERNATOR CONTROL CIRCUIT TROUBLESHOOTING  .
   • If the voltage over 15.1 V, go to replace the alternator (see ALTERNATOR REMOVAL AND INSTALLATION  ) or rear housing assembly (see ALTERNATOR OVERHAUL  ).
6. Check the alternator, regulator, battery & starter tester display.

   Is the amperage 60 A or more? 

   YES  - The charging system is OK.

   NOTE: If the charging system indicator is still on, replace the alternator (see ALTERNATOR REMOVAL AND INSTALLATION  ).

   NO  - Replace the alternator (see ALTERNATOR REMOVAL AND INSTALLATION  ), or repair the alternator (see ALTERNATOR OVERHAUL  ).