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

Cruise Control Servo: Testing and Inspection


TEST 0: SERVO TEST

Disconnect the Cruise Control Servo and repeat tests 8, 9, 10 and 11 of the (Isolation Test) on the Cruise Control Servo (male side).

^ If the circuit is now open (infinite resistance), check 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 Servo if terminals are OK.