Charging System Indicator Circuit Troubleshooting

Does the charging system indicator come on? 

1. YES  - Go to step 2.
2. NO  - Go to step  6.

Does the charging system indicator go off? 

1. YES  - Charging system indicator circuit is OK. Go to the alternator and regulator circuit troubleshooting (see ALTERNATOR AND REGULATOR CIRCUIT TROUBLESHOOTING  ).
2. NO  - Go to step 3.

Does the charging system indicator come on? 

1. YES  - Turn the ignition switch OFF, and repair a short in the wire between the alternator and the gauge assembly.
2. NO  - Go to step  9.

Fig 1: Connecting Alternator 4P Connector Terminal No. 3 To Body Ground With Jumper Wire

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Does the charging system indicator come on? 

1. YES  - Go to step 9.
2. NO  - Turn the ignition switch OFF. Check for a blown No. 9 (10 A) fuse in the driver's under-dash fuse/relay box and a blown charging system light bulb. If the fuse and bulb are OK, repair an open in the wire between the alternator and the gauge assembly and/or the gauge assembly and the driver's under-dash fuse/relay box.

Fig 2: Measuring Voltage Between Alternator 4P Connector Terminal No. 1 And Body Ground

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage? 

1. YES  - Go to alternator and regulator circuit troubleshooting (see ALTERNATOR AND REGULATOR CIRCUIT TROUBLESHOOTING  ).
2. NO  - Check for a blown No. 6(15 A) fuse in the driver's under-dash fuse/relay box and No. 92 (7.5 A) fuse in the auxiliary fuse holder 3. If the fuses are OK, repair an open in the wire between the alternator and auxiliary fuse holder 3, or auxiliary fuse holder 3 and driver's under-dash fuse/relay box.