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

Test Procedures

Cruise Control System Isolation Test Chart 1:

Perform tests in isolation chart, Fig. 21. If results are incorrect perform tests under DIAGNOSTIC CHARTS, Do not press both the set switch and Resume/Accel position of cruise switch at same time with engine running. If quick checker displays a short light, release switches immediately.

NOTE: While performing the tests in the charts refer to the wiring diagrams and connector pin outs under Schematic Diagrams.