by Mike Lundgren | May 21, 2026 | Diagnostics
Nissan and Infiniti ignition coils repeatedly melt down due to excessive voltage drop between the negative battery cable and the engine block. This voltage drop, typically 1.5 to 2 volts, creates an elevated ground on the engine block that causes the ECM to hold a...
by Mike Lundgren | May 17, 2026 | Diagnostics
A 2017 BMW X1 with a severe parasitic draw that killed the battery overnight presented a diagnostic challenge that didn’t follow the typical network-based approach. The vehicle exhibited a consistent 4.5 to 6-amp draw with a specific pattern: 20 seconds at 6...
by Mike Lundgren | May 7, 2026 | Diagnostics
Nitrogen-filled air suspension systems are becoming increasingly common on Stellantis (Jeep, Ram, Dodge, Chrysler), GM, and Volvo vehicles. These systems require nitrogen charging when severely depleted or after component replacement, and shops can set up to perform...
by Mike Lundgren | May 1, 2026 | Key Services
The Hidden Problems That Block Key ProgrammingKey programming failures aren’t always about the wrong key or faulty tools. Sometimes pre-existing vehicle problems that don’t affect normal driving can completely block the programming process. Two recent...
by Mike Lundgren | Apr 23, 2026 | Module Programming
GM’s Global B VIP (Vehicle Intelligence Program) architecture, found on 2020+ General Motors vehicles, introduces a complex security authentication system that can create unexpected challenges when programming modules. Unlike the simpler pin-sharing system in...
