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Home >> Saab >> 2002 >> 9-3 Viggen, 4D Hatchback >> Repair and Diagnosis >> Engine Performance >> System >> TRIONIC T7 Fuel Control System >> Technical Description >> Bus communication >> Diagnostics >> Notes
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Bus communication: Diagnostics: Notes

In a bus system, it is necessary for all the units to be able to communicate with each other. For example, the engine cannot be started unless Trionic T7 can receive immobilizer information transmitted by TWICE.