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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Wireless remote control/electronic key battery
Replace the battery with a new one if it is depleted. You will need the following items: ● Flathead screwdriver ● Small flathead screwdriver ● Lithium battery CR2016 (vehicles without a smart key system), or CR2032 (vehicles with a smart key system) Replacing the battery &# ...

Rear speaker assy
Replacement Hint: components: 1. Remove rear door opening trim rh 2. Remove rear door opening trim lh 3. Remove bench type rear seat cushion assy( or 72–8) 4. Remove rear seat back assy (fixed type rear seat) 5. Remove rear seat back assy (separated type rear seat) 6. Remove rear seat side ...

On–vehicle inspection
1. Inspect cooling system for leaks Caution: to avoid the danger of being burned, do not remove the radiator cap while the engine and radiator are still hot, as fluid and steam can be blown out under pressure.  fill the radiator with coolant and attach a radiator cap tester.   ...