Toyota Corolla (E120): Problem symptoms table

If a normal code is displayed during the dtc check but the problem still occurs, check the circuits for each problem, symptom in the order given in the table below and proceed to the relevant troubleshooting page.

Actuator motor circuit

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    Inspection procedure
    1 Check un–lock warning switch assy Disconnect the key unlock warning switch connector.  check the continuity between the terminals of the key unlock warning switch connector, as shown in the illustration and table. Standard: 2 Check wire harness (tvip ecu unlock warni ...

    Playing audio CDs and MP3/WMA discs
    CD player operation Insert a disc or press to begin listening to a disc. 1 Power 2 Volume 3 Eject a disc 4 Repeat play 5 Random playback 6 Select a track/file or display track/folder list 7 Displays text message 8 Playback 9 Select a folder (MP3/WMA discs only), fast-forward or revers ...

    On–vehicle inspection
    1. Horn button assy (vehicles not involved in collision) Check the diagnostic system . visually check the following item with the horn button assy (with airbag) installed in the vehicle. Check cuts, minute cracks or marked discoloration on the horn button assy top surface and in the ...