Having problems with your 2003 Chevrolet Silverado 2500 ?
I have a 2003 chev silverado, 4x4 2500 both power seats and seat heaters stopped working at the same time, Looking for reason why, all fuses seem to be good. I was told to replace the 25 amp relay on
\015 Seat heaters and seat controls on both seats stopped at same time\015
Ok I don't know who these people are giving advice but I hope they are not gm mechanics. There is a fuse under the hood marked MBEC 1 50amp. If it blows it knocks out both power seats seat heaters and power windows passenger side front and back. I can't believe all this wiring ****!
You can swap relays around to see if it changes the situation. Most relays are interchangable.
Repair Help & Product Troubleshooting for 2003 Chevrolet Silverado 2500
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