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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Control Module









The Computer Command Ride (CCR) Control Module is a computer used to control and monitor the system. It is located on a bracket under the driver's seat. The Control Module receives driver select switch, speed, and accelerator inputs and determines the optimum mode strut valving for current operating conditions. The module also receives feedback from the struts to determine proper system operation. If the module receives an incorrect feedback signal, an error code will be set in the Control Module and both driver select switch Light Emitting Diodes (L.E.D.'s) will illuminate to display the error condition. For diagnostic purposes, grounding the Diagnostic Enable circuit will cause both driver select switch L.E.D.'s to flash error codes.