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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Coolant Temperature Sensor/Switch (For Computer)

Standard Sensor Resistances
Temperature Resistance
0° C (32° F) 5.8k Ohms
20° C (68° F) 2.4k Ohms
40° C (104° F) 1.1k Ohms
80° C (176° F) 0.3k Ohms

Sensor Output Voltage--ECM Terminal 63
At 32° F (0° C) 3.2 - 3.8 Volts
At 68° F (20° C) 2.3 - 2.9 Volts
At 104° F (40° C) 1.3 - 1.9 Volts
At 176° F (80° C) 0.3 - 0.9 Volts