Operation CHARM: Car repair manuals for everyone.

Battery Charge

The battery charge indicator may only be ON during RUN. The IPC illuminates the battery charge indicator under the following conditions:
^ During the bulb check.
^ The Powertrain Control Module (PCM) sends a class 2 serial data message requesting illumination due to a concern in the charging system.
^ The Dash Integration Module (DIM) sends the system voltage status to the IPC via a class 2 serial data message. The IPC illuminates the battery charge indicator when the system voltage is less than 10.5 Volts or greater than 16.2 Volts for 30 Seconds. The IPC will also display one of the following messages on the DIC:
- With system voltage greater than 16.2 Volts, BATTERY VOLTAGE HIGH
- With system voltage less than 10.5 Volts, BATTERY VOLTAGE LOW