Toyota Corolla (E120): Circuit description

Hint:

Hint

: there is a case that hand–held tester cannot be used when ecu is abnormal.

Wiring diagram

Inspection procedure

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    If you think something is wrong
    If you notice any of the following symptoms, your vehicle probably needs adjustment or repair. Contact your Toyota dealer as soon as possible. Visible symptoms ● Fluid leaks under the vehicle. (Water dripping from the air conditioning after use is normal.) ● Flat-looking tires or u ...

    Overhaul
    Notice: when installing, coat the parts indicated by the arrow with power steering fluid or molybdenum disulfide lithium base grease. 1. Precaution 2. Disconnect battery negative terminal 3. Inspect center front wheel 4. Remove horn button assy 5. Remove steering wheel assy sst 09950–50013 ...

    Diagnostic trouble code chart
    If a dtc is displayed during the dtc check, check the circuit listed in the table below and proceed to the page given. * :● ... Mil light up ...