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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Power Steering Pressure Switch: Testing and Inspection

Steering Pressure Sensor:






1. Disconnect sensor connector.
2. Start engine and check switch continuity. While turning the steering wheel, sensor should show continuity. With steering wheel straight ahead (not being turned), there should be no continuity.
3. If not as specified, replace sensor.