Toyota Corolla (E170): For safety and security

Share this page:

Other materials:

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 ...

Brake Hold
The brake hold system keeps the brake applied when the shift lever is in D, B (vehicles without paddle shift switches), M (vehicles with paddle shift switches) or N with the system on and the brake pedal has been depressed to stop the vehicle. The system releases the brake when the accelerator peda ...

Circuit description
The actuator motor is operated by signals from the cruise control ecu assy. Acceleration and deceleration signals are transmitted by changes in the duty ratio (see below). Duty ratio: the duty ratio is the ratio of the period of continuity in one cycle. For example, if a is the period of co ...