Chrysler Repair: 96 Chrysler LHS Rad Fans, chrysler lhs, amp fuse

Question
Hi Roland..
Neither rad fan is working in my 96 Chrysler LHS. I replace both relays (hi and lo) and a 40amp fuse (which the fuse was blown)I wa told that a bad relay might have blown the fuse. Well none of that worked. Can you tell me what might possibility be wrong? When a woman takes a car to the shop she had better know what she is talking about or just give them the credit card and the bank book. I was going to straight wire the fans in fact just went and bought the materials to do it. But got to thinking if it's not too many options of what could be wrong I'd rather fix it right. The a/d belt is cut because the bearing in the compressor went out. Also still no fans when I turn n the a/c or defrosters. Somebody else told me they should come on regardless. Can you tell me where you would start the process of elimination and work forward.

Thanks

Answer
Hi Carol,
Just as a chance, check fuse #20 in the fuse block behind the dash (remove end cap at left end after opening drive door for access). That one provides the power to activate the relays when called upon by the powertrain control module. Make sure the 20 amp fuse for the fan power (fuse D in the box under the hood) isn't blown. The 40 amp you replaced may be the wrong one? If neither of those steps correct it, or if the D fuse blows again, remove the compressor clutch relay to get it out of the circuit (in the under hood box). Then to test the fans, just remove either fan relay and jump a wire from the rear pin to the front pin of the socket and the fans should fire up when  you touch the wire across. If they don't, then either the fan(s) is overdrawing the circuit, the wire from the relay socket to the fan is shorted to ground, or the rfi (radio interference unit at the fans) is shorted to ground (any of those would blow fuse D again), OR the ground wire for the fans is loose/corroded. So check the that black ground wire from the plug socket at the fans module is clean and shiny and tightly connected at the ground point near the left headlamp. You can by-pass the rfi module by jumping around it on both the tan and yellow supply wires that come from the relay socket, or by carefully jumping from the battery + cable clamp to either of those colored wires, to test the fan motors directly. But take care in such a jump to not touch the wire to ground so as to avoid an electrical burn in the case of a direct battery short to ground.
By process of elimination you can sort out this problem.
Roland