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

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Power Steering Pressure Switch: Description and Operation

Power Steering Load Switch Location:




OPERATION
The Power Steering Switch signals the ECM when the pressure increases (indicating extra engine load). The ECM can then compensate for the load by increasing the duty cycle to the IACV-AAC valve.