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Home >> Lexus >> 2010 >> LS 600hL >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P0010-P0441) >> SFI System >> DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1); DTC P0430: Catalyst System Efficiency Below Threshold (Bank 2) >> Confirmation Driving Pattern
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Confirmation Driving Pattern

HINT: 

Performing this confirmation pattern will activate the catalyst monitor. This is very useful for verifying the completion of a repair.

Fig 1: Confirmation Driving Pattern
GTY267165Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Connect the Techstream to the DLC3.
  2. Turn the power switch on (IG).
  3. Turn the Techstream ON.
  4. Clear DTCs (if set). Refer to DTC CHECK / CLEAR .
  5. Enter the following menus: Powertrain / Engine and ECT / Monitor.
  6. Check that Catalyst / Status2 is incomplete.
  7. Turn the power switch on (READY).
  8. Warm up the engine. (Procedure "A")
  9. Drive the vehicle at between 70 km/h and 120 km/h (45 mph and 75 mph) for at least 10 minutes. (Procedure "B")
  10. Those items will change to complete as catalyst monitor operates.
  11. On the Techstream, enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending; then check if any DTCs (any pending DTCs) are set.

HINT: 

If catalyst does not change to complete, and any pending DTCs fail to set, extend the driving time.