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)

Or, hide this message: temporarily or permanently

Electrical Test


1. Remove CPA from cruise control module electrical connector.
2. Disconnect module electrical connector, then install cruise/cluster tester connector.
3. Install module electrical connector to tester.
4. Plug cruise/cluster tester power cord to lighter.
5. Select road or shop tester mode.
6. Refer to DIAGNOSTIC CHARTS for diagnostic procedures.