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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Inspection procedure
Hint: when the throttle position is slightly opened (the accelerator pedal is slightly depressed) because a floor carpet is overlapped on the accelerator pedal, or if not fully releasing the accelerator pedal, etc., Dtc p505 will possibly be detected. Read freeze frame data using the ...

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 ...

Inspection procedure
1 Check courtesy lamp switch Check the courtesy switch, as shown in the illustration and table. Standard: 2 Check wire harness (integration relay  door courtesy sw) Disconnect the integration relay and door courtesy connectors.  check the continuity between th ...