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)

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Vehicle Speed Sensor/Transducer - Cruise Control: Testing and Inspection

1. Disconnect 6 way connector from amplifier assembly, then connect an ohmmeter between dark green/white and black wires on Bronco and F-Series or dark green and black wires on E-Series at the speed sensor end. A reading of 200 ohms should be obtained. A reading of 0 ohms indicates a shorted coil and an infinity reading indicates an open coil.
2. Replace sensor if a correct reading has not been obtained.