LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Lexus
>>
2022
>>
LX 600 Premium
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Control System (W/ Canister Pump Module) - Diagnostic Codes (5 Of 9)
>>
SFI SYSTEM (w/ Canister Pump Module)
>>
DTC P0420-00: Catalyst System Efficiency Below Threshold Bank 1; DTC P0430-00: Catalyst System Efficiency Below Threshold Bank 2 [12/2021 - 10/2023]
>>
Typical Malfunction Thresholds
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Typical Malfunction Thresholds
Oxygen Storage Capacity (OSC) of catalyst (Normalized)
Less than 1