Toyota Corolla (E120): Circuit description

If the ignition switch is turned to the on position, battery positive voltage is applied to the switches, such as terminal ig of the ecu.

Wiring diagram

Inspection procedure

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    On–vehicle inspection
    1. Install lspv gauge (sst) and bleed air  remove the bleeder plugs from the front and rear brake cylinder.  install the lspv gauge (sst), and bleed the air. Sst 09709–29018 2. Raise master cylinder pressure and check rear wheel cylinder pressure Hint: when inspectin ...

    Inspection procedure
    1 Check operation(starter) Check that the starter operates normally and that the engine starts. 2 Input signal check See input signal check on page 05–745.  check the indicator light when shifting into except d position. Ok: the indicator light goes off when shifting ...

    Replacement
    1. Discharge refrigerant from refrigeration system  turn the a/c switch on.  operating the cooler compressor at the engine rpm of approx. 1000 For 5 to 6 min., Circulate the refrigerant and collect compressor oil remaining in each component into the cooler compressor as much ...