Toyota Corolla (E120): Right/Left front speed sensor circuit

Problem symptoms table

Circuit description

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 ...

Automatic transaxle assy (atm)
Precaution  The automatic transaxle is composed of highly precision–finished parts, necessitating careful inspection before reassembly because even a small nick could cause fluid leakage or affect the performance. The instructions here are organized so that you work on only o ...

Towing with a wheel-lift type truck
► From the front Release the parking brake. ► From the rear Use a towing dolly under the front wheels. Vehicles without a smart key system: When not using a towing dolly, turn the engine switch to the “ACC” position and shift the shift lever to N. Vehicles with a smart key ...