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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Test N: Servo Chart


Disconnect the Cruise Control Servo and repeat tests 7, 8, 9, and on the Cruise Control Servo (male side).

^ If the measurement is now open (infinite resistance), check the Cruise Control Servo Connector and Cruise Control Module Connector for corrosion between terminals. Repair shorted wires if connectors are OK.

^ If the resistance is still low, check Cruise Control Servo terminals for corrosion between terminals. Replace if Servo terminals are OK.