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)

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Speed Sensor

Fig. 43 Speed Sensor Test Connections:





1. Raise rear of vehicle, then place transmission in neutral.
2. Turn a rear wheel by hand and check for continuity between terminal A and ground, Fig. 43.
3. If there are no pulses, replace speed sensor or repair wiring harness.