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)

Voltage Between ECU Connector Terminal (B48)7 And Ground: 0.6 - 4.5 Volts

Resistance Between Sensor Terminals
Resistance: Temperature:
2.0 - 3.0K Ohms 20°C (68°F)
0.3 - 0.4K Ohms 80°C (176°F)

Resistance Between ECU And Coolant Sensor Connectors
Connector & terminal: Resistance:
(B48)7 - (E7)1 0 Ohm
(B48)21 - (E7)2 0 Ohm