Cooling Temperature Switch

WARNING: This page is about a different car, the 2008 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Do not heat more than necessary.

Dip the metal part of the cooling temperature switch into engine oil and increase the oil temperature using a gas burner or similar.

Fig 1: Checking Resistance Refrigerant Temperature Switch Terminals
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

When the oil temperature reaches the standard value, check that resistance is supplied between the terminals.

Standard value:

OIL TEMPERATURE CHART

Item	Temperature
Less than 2 ohms	Slightly below 155°C (311°F)
No continuity	155°C (311°F) or more

NOTE: When the oil temperature is 155°C (311°F) or more and there is no continuity, the resistance will not be 2Ω or lower until the oil temperature reduces to 125°C (257°F) or less.

Fig 2: Oil Temperature Continuity Graph

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.