Toyota Corolla (E120): Idle signal circuit

Dtc 51 idle signal circuit

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Inspection procedure
1 Check voltage at ig2 of airbag sensor assy center Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connector of the airbag sensor assy center.  connect the negative (–) terminal cable to the battery, and wa ...

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 ...

Optimal use of the multimedia system
On the “Sound Settings” screen, sound quality (Treble/Mid/ Bass), volume balance can be adjusted. How to adjust the sound settings and sound quality 1 2 3 Select “-” or “+” to adjust the treble, mid or bass to a level between -5 and 5. 4 5 Select “Front” or “Rear” to adjus ...