Toyota Corolla (E120): Tvip ecu communication circuit

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Toyota Safety Sense 3.0 software update
It is necessary to enter a connected services contract, provided by Toyota, to use these functions. For details, contact your Toyota dealer. WARNING ■For safe use When the Toyota Safety Sense 3.0 software is updated, the operating methods of functions may change. Using this system without knowing ...

Circuit description
1 Check p squib circuit(airbag sensor assy center – instrument panel passenger airbag assy) Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connectors between the airbag sensor assy center and the instrument panel ...

Inspection procedure
Hint: read freeze frame data using the hand–held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, th ...