Tag Archives: U-codes

JLR CAN Bus Diagnostics | Troubleshooting Network Faults

JLR Engineering

JLR CAN Bus Diagnostics: Solving Network Errors Introduction A modern JLR vehicle is a network of 50+ computers (modules) all communicating with each other over one or more CAN (Controller Area Network) buses. When this communication breaks down, it can cause a cascade of strange, seemingly unrelated faults. Diagnosing these network issues, which typically present […]

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