LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Toyota
>>
2003
>>
Prius
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Control System Self Diagnostics
>>
Diagnostic Tests
>>
DTC P0420: Catalyst System Efficiency Below Threshold
>>
Confirmation Driving Pattern
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Confirmation Driving Pattern
For confirmation driving pattern procedure, see
Fig 1
.
Fig 1: Confirmation Driving Pattern
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002