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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E-Box Temperature Sensor

E-Box Temperature Sensor

the E-Box has a separate temperature sensor. the sensor is an NTC type and is used to control the E-box fan. When the temperature in the E-box is above a predetermined value (35°) the sensor provides a switched ground for the E-box fan. the fan is used to cool the ECUs located within the E-box.

the ECM briefly activates the E-box fan at every engine start-up This is done to prevent the motor seizing up due to lack of use.