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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Transmission Speed Sensor: Testing and Inspection

Transmission Speed Sensor Connector:






1. Disconnect the output speed sensor connector.
2. Measure the resistance between the terminals of the output speed sensor. ATF temperature should be within 20 - 80°C (68 - 176°F).
3. if not correct, replace the output speed sensor.
4. Connect the output speed sensor connector.