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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Feedback Control Module: Service and Repair

Fig. 6 Lambda control unit & correction plug:





1. Tilt rear seat forward.
2. Press catch sideways and disconnect cable connector from control unit.
3. Remove three control unit retaining screws and the control unit. The connector shown in Fig. 6 is to be used in conjunction with a ``Lambda Correction Plug.'' This will facilitate the use of the same electronic control unit in either a Federal or California vehicle. Use a green correction plug for Federal vehicles or a red plug for California vehicles.