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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High Pressure Sensor / Switch: Testing and Inspection

1. Connect manifold gauge set to system.
2. Disconnect electrical connector to switch. Switch is located on receiver/ drier on Camry models or under battery tray on Corolla front wheel drive models.
3. Check continuity of switch using suitable ohmmeter.
4. If meter does not indicate continuity with pressure reading less than 256 psi, switch is defective.