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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Using the steering wheel switches
The steering wheel switches can be used to operate a connected cellular phone or portable digital audio player (portable player). Operating a Bluetooth® phone using the steering wheel switches 1 Volume The voice guidance volume cannot be adjusted using these buttons. 2 Off-hook switch Turns ...

Inspection procedure
Hint: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the ...

On–vehicle inspection
1. Inspect for electrical door lock operation Hint: w/ power window: the door control switch is built in the master switch in the driver’s door and also in the passenger’s door. W/o power window: the door control switch is in the driver’s door and also in the passenger’s d ...