LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Toyota
>>
2009
>>
Tundra Base, 4.0 U
>>
Repair and Diagnosis
>>
External Pages
>>
Different car
>>
Section 249 (Engine Control System (2TR-FE))
>>
SFI System
>>
DTC P0420 Catalyst System Efficiency Below Threshold (Bank 1)
>>
Monitor Result
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Monitor Result
WARNING:
This page is about a different car, the 2009 Toyota Tacoma. However, it is still accessible from the selected car via links, so may be relevant.
Refer to
CHECKING MONITOR STATUS
.