Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Secondary HO2S Replacement

Secondary HO2S Replacement

NOTE: When Secondary HO2S is replaced, Third HO2S must be replaced at the same time. ('02-03 M/T model only)




1. Disconnect the secondary HO2S 4P connector (A), and remove the secondary HO2S (B).
2. Install the secondary HO2S in the reverse order of removal.