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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Introductions
4. Anti-rust treatment after installation (A) body sealer application Purpose: for water-proofing and anti-rust measures, always apply the body sealer to the body panel seams and hems of the doors, hood, etc. Notice: apply body sealer neatly to parts that require a high quality appeara ...

If the vehicle battery is discharged
The following procedures may be used to start the engine if the vehicle’s battery is discharged. You can also call your Toyota dealer or a qualified repair shop. If you have a set of jumper (or booster) cables and a second vehicle with a 12-volt battery, you can jump start your vehicle by fo ...

When stopping the engine with the shift lever in a position other than P (vehicles with a continuously variable transmission)
If the engine is stopped with the shift lever in a position other than P, the engine switch will not be turned off but instead be turned to ACCESSORY mode. Perform the following procedure to turn the switch off: 1 Check that the parking brake is set. 2 Shift the shift lever to P. ► Vehi ...