Test E: Warning Indicator Off W/Ign Switch In RUN/Engine OFF

E1:

Normal Operation
Under normal operation, the I (ignition) circuit 904 (LG/RD) will be 13-15 volts with the ignition switch in the RUN position and the engine not running. This will turn the charging system warning indicator on. This circuit is also used to turn the charging system warning indicator on if there is a fault in the charging system.

Possible Causes
^ voltage regulator
^ instrument cluster