Symptom Troubleshooting Index

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2009 Honda S2000, 2008 Honda S2000, 2007 Honda S2000, 2006 Honda S2000, and 2005 Honda S2000. However, it is still accessible from the selected car via links, so may be relevant.

'00-05 models

TROUBLESHOOTING CHART

Symptom	Diagnostic procedure	Also check for
Charging system indicator does not come on with the ignition switch in ON (II)	Troubleshoot the charging system indicator circuit (see CHARGING SYSTEM INDICATOR CIRCUIT TROUBLESHOOTING ).
Charging system indicator stays on	Troubleshoot the charging system indicator circuit (see CHARGING SYSTEM INDICATOR CIRCUIT TROUBLESHOOTING ). Check for a broken drive belt (see DRIVE BELT INSPECTION ). Check the drive belt auto-tensioner (see DRIVE BELT AUTO-TENSIONER INSPECTION ).
Battery discharged	Check for a poor connection at the battery terminal. Check for a broken drive belt (see DRIVE BELT INSPECTION ). Test the battery (see BATTERY TEST ). Troubleshoot the alternator and regulator circuit (see ALTERNATOR AND REGULATOR CIRCUIT TROUBLESHOOTING ). Check the drive belt auto-tensioner (see DRIVE BELT AUTO-TENSIONER INSPECTION ). Check for excessive parasitic electrical current draw with the ignition switch in LOCK (0), and the key removed. The multiplex control unit may take up to 10 minutes to turn off (sleep mode) for some models.
Battery overcharged	Test the battery (see BATTERY TEST ). Troubleshoot the alternator and regulator circuit (see ALTERNATOR AND REGULATOR CIRCUIT TROUBLESHOOTING ).

'06-09 models

TROUBLESHOOTING CHART

Symptom	Diagnostic procedure	Also check for
Charging system indicator does not come on with the ignition switch in ON (II)	Troubleshoot the charging system indicator circuit (see ALTERNATOR AND REGULATOR CIRCUIT TROUBLESHOOTING ).
Charging system indicator stays on	Troubleshoot the charging system indicator circuit (see ALTERNATOR AND REGULATOR CIRCUIT TROUBLESHOOTING ). Check for a broken drive belt (see DRIVE BELT INSPECTION ). Check the drive belt auto-tensioner (see DRIVE BELT AUTO-TENSIONER INSPECTION ). Check for PGM-FI DTCs (see DTC TROUBLESHOOTING ).
Battery discharged	Check for a poor connection at the battery terminal. Check for a broken drive belt (see DRIVE BELT INSPECTION ). Test the battery (see BATTERY TEST ). Troubleshoot the alternator and regulator circuit (see ALTERNATOR AND REGULATOR CIRCUIT TROUBLESHOOTING ). Check the drive belt auto-tensioner (see DRIVE BELT AUTO-TENSIONER INSPECTION ). Check for excessive parasitic electrical current draw with the ignition switch in LOCK (0), and the key removed. The multiplex control unit may take up to 10 minutes to turn off (sleep mode) for some models.
Battery overcharged	Test the battery (see BATTERY TEST ). Troubleshoot the alternator and regulator circuit (see ALTERNATOR AND REGULATOR CIRCUIT TROUBLESHOOTING ).