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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Customizing vehicle features
It is possible to customize the language and Eco Driving Indicator Light settings using the “DISP” switch. When customizing vehicle features, ensure that the vehicle is parked in a safe place with the shift the shift lever to P (continuously variable transmission) or N (manual transmissio ...

Shift solenoid ”a” performance (shift solenoid valve s1)
Dtc p0751 shift solenoid ”a” performance (shift solenoid valve s1) System description The ecm uses signals from the vehicle speed sensor and crankshaft position sensor to detect the actual gear position (1st, 2nd, 3rd or o/d gear). Then the ecm compares the actual gear with the shift sc ...

Warning buzzer does not sound (key reminder warning, light reminder warning)
Wiring diagram Inspection procedere 1 Check buzzer Check that all of the warning buzzers sound. 2 Inspect front door courtesy lamp switch assy 3 Inspect un–lock warning switch assy 4 Check harness and connector(between un–lock warning switch and combination meter as ...