Tesla 16V Li-ion Battery Diagnostics in Tigard
The 16V lithium auxiliary battery in newer Teslas utilizes an integrated Battery Management System (BMS). Unlike older 12V lead-acid units, these systems trigger BMS_u029 alerts if internal resistance varies during high-load firmware cycles. Moisture-driven terminal oxidation from Willamette Valley humidity frequently disrupts the LIN-bus handshake, causing phantom service alerts that I can resolve without a […]