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


1. Disconnect power steering switch electrical connector, then start engine and check continuity between switch and ground.
2. With steering wheel in the straight ahead position, continuity should not exist.
3. With steering wheel in the turned position, ohmmeter should indicate 33 or less ohms.
4. If readings are not as stated, replace power steering switch.