Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Sfi system / Catalyst system efficiency below threshold

Toyota Corolla (E120): Catalyst system efficiency below threshold

Dtc p0420 catalyst system efficiency below threshold (bank 1)

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Symptom confirmation and diagnostic trouble code
Hint: the diagnostic system in corolla has various functions. The first function is the diagnostic trouble code (dtc) check, in which a malfunction in the signal circuits to the ecu is stored in code form in the ecu memory. Another function is the input signal check, which checks if ...

Parking brake
Operating instructions 1 To set the parking brake, fully pull the parking brake lever while depressing the brake pedal. 2 To release the parking brake, slightly raise the lever and lower it completely while pressing the button. *1: For U.S.A. *2: For Canada ■Parking brake engaged wa ...

Front suspension
Preparation Sst Recomended tools Equipment ...