Component Inspection

Component Inspection

1. Monitor the Catalyst Converter
(1) Clear DTC.
(2) Start the engine and warm it up until the radiator fan comes on (more than 10 min).
(3) Drive at a steady speed between 45-55 mph (72-88 km/h) for 30 seconds.
(4) Stop and then maintain idle state for 120 seconds in D-position.
(5) Repeat step 3 once again.
(6) Stop and then maintain idle state (D-position) for 120 seconds.
(7) Repeat step 3 once again.
(8) Stop and then maintain idle state for 120 seconds in D-position.
(9) IG "OFF"
(10) Repeat steps 3 through 9 three times.
(11) Check if catalyst monitoring readiness is complete. so, if the readiness is incomplete, repeat steps 2 through 10.
(12) Does the scan tool show DTC P0430?
YES
1) Substitute with a known - good Catalyst Converter and check the signal waveform of HO2S for proper operation. If the problem is corrected, Go to "Verification of Vehicle Repair" procedure.
NO
1) It was intermittent failure.