Circuit/System Description

Hybrid/EV Battery System Verification

The EL-50332 Hybrid/EV Battery Service Tool communicates with the battery energy control module through the A4 Hybrid/EV Battery Pack X357 and X358 connectors. The tool displays battery cell group voltages for the 96 battery cell groups along with the calculated voltage difference between the highest and lowest readings. The tool also displays the temperatures read by the 9 thermistors located within the battery sections. By reviewing this data, technicians can verify circuit integrity within the A4 Hybrid/EV Battery Pack prior to attaching the Hybrid/EV Battery Cover.