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

Fig. 26 Inspection Of Power Steering Switch:







1. Disconnect power steering pressure switch connector.
2. Connect ohmmeter to switch Fig. 26.
3. Start engine and check continuity of switch while turning steering wheel at idle. There should be continuity while turning and there should be no continuity when not turning.
When the oil pressure is above 2500 kPa (355 p.s.i.)......Closed
When the oil pressure is below 2500 kPa (355 p.s.i.)......Open