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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Fail–safe chart
If any of the following codes is recorded, the ecm enters the fail–safe mode. Check for intermittent problems Hand–held tester only: by putting the vehicle’s ecm in the check mode, the 1 trip detection logic is possible instead of the 2 trip detection logic, and the sensitivity to de ...

How to check and change detailed Bluetooth® settings
1 Display the “Bluetooth* Setup” screen. 2 Select “System Settings”. 3 The following screen is displayed: 1 Bluetooth® Power on/off You can change Bluetooth® function on/off 2 Bluetooth® Name 3 Change PIN-code 4 Bluetooth® Address 5 Display Phone Status You can set the system ...

Driving assist systems
To keep driving safety and performance, the following systems operate automatically in response to various driving situations. Be aware, however, that these systems are supplementary and should not be relied upon too heavily when operating the vehicle. Summary of the driving assist systems ■ ABS ( ...