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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Component Tests and General Diagnostics

Inspection of Cruise Control System Circuit

Cruise control system is controlled by ECM. Each switch and circuit can be checked by taking measurement of terminal voltage and terminal to terminal resistance of ECM. When measuring these values, be sure to read precautions for measurement described under Inspection of ECM and Its Circuits.

Voltage Check

Wiring Diagram:

Check voltage between the following terminals with ECM connector connected.