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Home >> Saab >> 2000 >> 9-5 Base, 4D Sedan, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 20 (Lighting And Signaling Systems) >> Technical description >> Bus communication >> Diagnosis >> Notes

Bus communication: Diagnosis: Notes

WARNING: This page is about a different car, the 2001 Saab 9-5. However, it is still accessible from the selected car via links, so may be relevant.

In a bus system, all the units must be able to communicate with each other. For example, the engine cannot be started if Trionic is unable to receive immobilizer information from TWICE.