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)
Other materials:
Towing your vehicle with 4 wheels on the ground
To prevent damage to your vehicle, perform the following procedures before towing.
1 Shift the shift lever to N.
2 Turn the engine switch to the “ACC” position (without a smart key system) or
ACCESSORY mode (with a smart key system).
(, 166) Ensure that the audio system and other powered de ...
Inspection procedure
1 Inspect fuse(stop)
Turn the ignition switch to off.
remove the stop fuse from the instrument panel j/b.
check continuity of the stop fuse.
Ok: continuity
2 Inspect stop lamp switch assy
Disconnect the stop lamp switch assy connector.
check continuity betw ...
Update contacts from phone
Operation methods differ between PBAP compatible and PBAP incompatible but OPP
compatible Bluetooth® phones.
If your cellular phone is neither PBAP nor OPP compatible, the contacts cannot
be transferred.
■ For PBAP Compatible Bluetooth® Phones
1 Select “Update Contacts from Phone” ...