Question about 1995 Mercury Grand Marquis
1995 mercury grand marquis changed speed sensor and cluster panal on dash speedometer still will not move
Hi, the wiring diagrams for the fuse are pasted below. It is possible for a fuse to blow without a short, if the right sequence of events happens to occur. If a fuse blows a second time, then we suspect a short and start looking for it. The wiring diagram does not lead to any obvious points. A short can occur in the cluster or in anything connected to it. This design seems to try to isolate the cluster from the components it's connected to, so I would first suspect the cluster as the source of the short. If a new cluster did not solve the problem, I would disconnect things that are connected to the cluster, put a fresh fuse in, and then reconnect each component until the fuse burned. You can try this without changing the cluster to see if the fuse will burn with everything disconnected. This is a way of confirming the problem is in the cluster before buying a new one. I'm not sure what the other expert told you, but this is the common line of thinking in the repair industry unless there are recalls or bulletins that indicate a common problem. I did review the recalls and TSBs, but did not see any applicable to your issue. You can read them here if you like: http://www.edmunds.com/car-maintenance/recalls.html?year=2000&make=&model=&styleId=12669&engCode=8VNAG4.6&transCode=AUTOMATIC&mileage=100000&zip=45390&type=recall
I hope this helps, and thanks for using FixYa.
Posted on Jan 17, 2011
check speed sensor signal at sensor and at cluster. Jack up drive wheels, Block other wheels, start car, put in drive. Then check both AC signals. The signal at the cluster is on pins 14 and 16. See diagrams below.
Posted on Apr 10, 2011
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