Toyota Corolla (E120): Circuit description

When the tvip system operates, the tvip ecu controls the starter cut relay so that the relay should not be turned on and consequently the starter can not crank the engine.

Wiring diagram

Inspection procedure

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    Basic inspection
    When the malfunction is not confirmed in the dtc check, troubleshooting should be carried out in all the possible circuits considered as causes of the problem. In many cases, by carrying out the basic engine check shown in the following flowchart, the location causing the problem can be found ...

    Inspection procedure
    1 Check d squib circuit(airbag sensor assy center – horn button 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 horn button assy.  for the oran ...

    Replacing a flat tire
    1 Chock the tires. 2 For vehicles with steel wheels, remove the wheel ornament using the wrench. To protect the wheel ornament, place a rag between the wrench and the wheel ornament, as shown in the illustration. 3 Slightly loosen the wheel nuts (one turn). 4 Turn the tire jack portion ...