Toyota Corolla (E120): Problem symptoms table

Problem symptoms table use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely cause of the problem. Check each part in order. If necessary, replace these parts.

On–vehicle inspection

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    On–vehicle inspection
    1. Inspect turn signal flasher relay circuit Disconnect the connector from the turn signal flasher relay and inspect the connector on wire harness side as shown in the chart. Standard: Connect the connector to the turn signal flasher and inspect the wire harness side connector ...

    Light control switch circuit
    Wiring diagram Inspection procedure 1 Check headlamp dimmer switch assy (light control switch) 2 Check wire harness (tvip ecu  light control switch) Disconnect the tvip ecu and light control switch connectors.  check the continuity between the terminals of the tvip e ...

    System description
    The ecm uses the signals from the throttle position sensor, air–flow meter and crankshaft position sensor to monitor the engagement condition of the lock–up clutch. Then the ecm compares the engagement condition of the lock–up clutch with the lock–up schedule in the ecm memory to de ...