Toyota Corolla (E120): Cruise control

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Circuit description
The ecm compares the two waveforms of the heated oxygen sensors located before and after the catalyst to determine whether or not the catalyst performance has deteriorated. Air–fuel ratio feedback compensation keeps the waveform of the heated oxygen sensor in front of the catalyst alterna ...

Diagnostics
Preparation Sst 09816–30010 Oil pressure switch socket Sfi system 09843–18040 Diagnosis check wire no.2 Sfi system supplemental restraint system Recomended tools 09082–00040 Toyota electrical tester Sfi system supplemen ...

Circuit description
When the brake pedal is depressed, the stop lamp switch assy sends a signal to the cruise control ecu assy. When the cruise control ecu assy receives this signal, it cancels the cruise control. A fail–safe function is provided so that cancel functions normally, even if there is a malfu ...