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I have a 2004 Envoy and just recently the memory for driver 1 and 2 is not keeping its memory. Also the heated seats are not working i think that it is a fuse problem. I don't have a manuel to see the diagram. what is your thoughts
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If other functions such as window controls and power seat controls are normal, here are some possibilities; 1) Circuit Breaker #8 in rear fuse panel 2) Defective Driver Memory Seat Module (under driver's seat) 3) Break in data lines between Driver's Memory Seat Module and Drivers Door Module 4) Fuse 23 & 6 in rear fuse panel
Before you start beating up thing's , test the electrical circuits. Do you know anything about automotive electrical systems ? How to use a volt meter an a wiring diagram to test for B+ power to the switch an testing the ground .
Does your envoy have memory seats ? Your vehicle has four or more electric motors to control back an foward , up an down etc.. the odds of more then one motor being bad at one time are highly unlikely .
Look under the seat any trash under there keeping it from moving ?
If you have memory seats there is a control module involved in making the seats work . If it has memory seats it could have DTC'S - diagnostic trouble codes .
DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820
The seat adjuster switches are inputs to the driver and passenger seat modules. The seat modules supply the adjuster switch assemblies with a battery positive switch supply circuit and monitor the switch signal circuits. In an inactive state the switch signal circuits are floating and when a switch is pressed the signal circuit is closed to the switch power circuit within the adjuster switch assembly. When battery voltage is present on the switch signal circuit the seat module determines the switch status to be active. DIY Blazer GMC Jimmy Power Seat Control Diagnostics and Repair Electric...
I had the same issue with my 2004 XUV on the drivers side. Noticed that a "spot" was hooter than normal right before it quit. The seat heaters are basically a simple wire coil that is laid between the upholstery and the padding. The back and seat units are independent but operate off the same switch. If you are somewhat mechanically inclined, this is not a difficult fix, you just have to be patient and careful. Mine was a year ago and I think the replacement part from GM Parts Direct was less than 50 bucks. The dealer wanted over $300 to fix it. If you want me to walk you thru it let me know.
Yes u must de-trim the seat cushion, the element is inside the seat, this is not a job for the novice, get the part yourself and take it to an automotive trim shop.
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