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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Overhaul
1. Remove generator pulley Sst 09820–63010 (09820–06010, 09820–06020) Hint: Hold sst 1 – a with a torque wrench, and tighten sst 1 – b clockwise to the specified torque. Torque: 39 nvm (398 Kgf·cm, 29 ft·lbf) Notice: check that sst is secured to the rotor shaft. ...

If the shift lever cannot be shifted from P (except vehicles with a manual transmission)
If the shift lever cannot be shifted with your foot on the brake pedal, there may be a problem with the shift lock system (a system to prevent accidental operation of the shift lever). Have the vehicle inspected by your Toyota dealer immediately. The following steps may be used as an emergency ...

Inspection procedure
1 Check p/t squib(lh) circuit(airbag sensor assy center – front seat outer belt assy lh) Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connectors between the airbag sensor assy center and the seat belt pretensio ...