Charging system indicator stays on, no DTCs set

NOTE: If the 12 V battery voltage is too low to operate the starter motor, the charging system indicator may come on.

Turn the ignition switch to ON (II).
Check the DC-DC CONVERTER TEMPERATURE in the DATA LIST with the HDS.
Is 201-257°F (94-125°C) indicated?

YES -The system is OK at this time. The charging system indicator will go off when the DC-DC converter temperature decreases. If the temperature does not decrease even though time has passed, replace the DC-DC converter (see DC-DC CONVERTER REMOVAL/INSTALLATION ).

NO -Go to step 3.
Do the gauge self-diagnostic function (see SELF-DIAGNOSTIC FUNCTION ).
Does the charging system indicator flash?

YES -Go to step 4.

NO -Replace the gauge control module (see GAUGE CONTROL MODULE REPLACEMENT ).
Turn the ignition switch to LOCK (0).
Turn the battery module switch OFF (see TURNING OFF AND ON POWER TO THE HIGH VOLTAGE CIRCUIT ).
Remove the IPU cover (see IPU COVER REMOVAL/INSTALLATION ).
Remove the PCU lid, the PCU busplate, and the PCU cover (see IPU CASE REMOVAL/INSTALLATION ).
Check the connections at the high voltage terminals (A, B) on the DC-DC converter (C).

Fig 1: High Voltage Terminals On DC-DC Converter With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Are the connections OK?

YES -Replace the DC-DC converter (see DC-DC CONVERTER REMOVAL/INSTALLATION ).

NO -Repair the connections.