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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Refrigerant-Temperature Switch Continuity Check




1. Immerse the refrigerant-temperature switch in engine oil.
2. Use an ohmmeter to check continuity when the engine oil has become heated.

Standard value:
Item = Temperature
Continuity (ON) = Less than approx 165°C (329°F)
No continuity (OFF) = Approx. 165°C (329°F) or more [until the temperature drops to approx. 110°C (230°F) when OFF]

CAUTION: Do not heat the oil more than necessary.