Lock and seat fuse keeps blowing

[iitywyswm]

My son has a 93 ATx. (My old car) We have been trying unsuccessfully to track down the reason the power seat/door lock fuse keeps blowing. We have tried disconnecting first the driver’s seat, then the passenger seat, and the door locks from the circuit to try to isolate the problem. So far we haven’t had any luck at all. The fuse will blow immediately. (Cant even install one before it blows.) It seems like there is a short somewhere, but we have not been able to find it. Does anyone have any ideas on what or where we should look for next? We have been using All Data’s wiring diagrams to try and isolate the problem.

Thanks

 

[rangerj]

If you are blowing a fuse as soon as you put it in it is a short. I think the wiring diagrams are "stickied" in one of the other sections. Find out what is on that fuse circuit. It could also be a relay that is "hot" and is stuck in the on position. If the fuse blows without the ignition being in the on position it is a "hot" circuit, so what else works WITHOUT the key in the on position? Lights (interior including glove box, under hood, in trunk, and exterior headlights, brake lights, etc.)? Door locks? Cigar lighter? Alarm system? Radiator fan, fuel pump, if relay fails?

Have you done an amp draw test on the battery? Nevermind you cannot do this if the fuse blows.

Idea: Check the wires that go into the drivers door at the jamb. These wire get bent back and forth more than any others and occasionally break or the insulation cracks. The wires to the door locks go through there and they are hot. If a wire gets grounded (short) it will cause the fuse to blow. Just a thought.

 

[iitywyswm]

If you are blowing a fuse as soon as you put it in it is a short. I think the wiring diagrams are "stickied" in one of the other sections. Find out what is on that fuse circuit. It could also be a relay that is "hot" and is stuck in the on position. If the fuse blows without the ignition being in the on position it is a "hot" circuit, so what else works WITHOUT the key in the on position? Lights (interior including glove box, under hood, in trunk, and exterior headlights, brake lights, etc.)? Door locks? Cigar lighter? Alarm system? Radiator fan, fuel pump, if relay fails?

Have you done an amp draw test on the battery? Nevermind you cannot do this if the fuse blows.

Idea: Check the wires that go into the drivers door at the jamb. These wire get bent back and forth more than any others and occasionally break or the insulation cracks. The wires to the door locks go through there and they are hot. If a wire gets grounded (short) it will cause the fuse to blow. Just a thought.

Thanks Ill take acloser look at the door jamb. I tried to get to some of the connectors dwn there (Near the hood release & e break) As far as i know only the power locks, and power seats are on this circut. But Ill check the relays