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
If it fails: lemon-manuals.org.ua

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Engine Speed Sensor: Testing and Inspection

Disconnect speed sensor wiring connector and connect "B," "BR" and "BY" color coded wiring terminals to each other with jumper wires. With engine running at about 1500- 1700 RPM, check for continuity between "LgB" color coded wiring terminals. If continuity exists, the engine speed sensor is operating properly.