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radiator fan control module


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  • 4 months later...

Advice please, just fitted the same as above PWM controller today.

Thunder Ecu

Aux 2 -Constant Freq.  3.9kHz

Cond. 1 and 2

Switch cond 1- ECT.

Ect greater than 70 Deg C.

Switch cond 2 - Rpm above 500.

Two dimensional  table setup as ETC vs RPM.

50 to 120 deg C- 500 Rpm and above.

100% below 80 deg C, 90 %, 70 %,50 %,10 %and 5 % for the next few 10 deg increments.

All active above 500 Rpm.

No joy in getting this working.

Controller is brand new and is defaulting to max on when PWM wire is disconnected .

Fan starts ramping up to full speed  from cold start up, does switch off when ignition is switched off.


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