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
If it fails: lemon-manuals.org.ua

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Restricted Exhaust System Check

Step 1:




Steps 2 - 4:




Steps 5 - 6:






NOTE: Diagnostic Trouble Codes will be set by running the vehicle to normal operating temperature after a cold start with the O2 sensor disconnected. After performing these tests, use the Tech 2 to erase the Diagnostic Trouble Codes that were set by the lack of O2 sensor activity.