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Showing results for tags 'not the usual problem'.
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My 99 C2 Cab has begun to overheat slight (right hand of 180) on hot days. I've checked all the threads and can confirm: - low speed fans come on when AC is pressed - fuses (row C 8 and 10) both fine (I don't think the low speeds would work either in this case) - durametric can drive the low speed fans - durametric "RPM stage 2" which is right under low speed fans (I believe high speed fans) does nothing - I've removed both the low speed relays and the high speed fans do not pulse on and off as they should do. - If I feel the high speed relays with the low speed relays out, I don't feel any clicking So it seems that the relays of the high speed fans aren't getting energised. What else can I test to narrow it down?