Can't set power SEAT position MEMORY ("1" & "2"). Memory Module cause?
03-18-2018, 02:33 AM
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84 300sd (w126) diesel
Can't set power SEAT position MEMORY ("1" & "2"). Memory Module cause?
In 84 300sd (w126), front LH (driver) power seat has seat position memory (according to the Owner's Manual).
My power seats work in all directions, but I CAN'T SET SEAT POSITION MEMORY (1 or 2).
...So...if everything else related to seat position memory is known good (below), is this failure to remember seat position 1 or 2 probably in the 34-year old Memory Module (126-820-0026) under the LH (driver) seat?
...If yes, can a Memory Module be returned to full function by rebuilding its electronics - resoldering all the solder points and replacing any electrolytic capacitors? (...as can be done in, for example, a Cruise Control Amplifier, or in a Climate push-button Control).
Thank you for your consideration.
Related...as far as I can tell, the following are good:
...the Power Separation Relay (001-542-0219 in Fuse Box E)
...the Seat Control Relay (001-542-0219 in Fuse Box A)
...the three (3) seat position memory-related push buttons (green, 1, and 2) on the Door Switch (003-820-2710 on the LH driver door), and
...the wiring from the door Switch to the Memory Module under the driver seat.
Again, thank you for your consideration.
My power seats work in all directions, but I CAN'T SET SEAT POSITION MEMORY (1 or 2).
...So...if everything else related to seat position memory is known good (below), is this failure to remember seat position 1 or 2 probably in the 34-year old Memory Module (126-820-0026) under the LH (driver) seat?
...If yes, can a Memory Module be returned to full function by rebuilding its electronics - resoldering all the solder points and replacing any electrolytic capacitors? (...as can be done in, for example, a Cruise Control Amplifier, or in a Climate push-button Control).
Thank you for your consideration.
Related...as far as I can tell, the following are good:
...the Power Separation Relay (001-542-0219 in Fuse Box E)
...the Seat Control Relay (001-542-0219 in Fuse Box A)
...the three (3) seat position memory-related push buttons (green, 1, and 2) on the Door Switch (003-820-2710 on the LH driver door), and
...the wiring from the door Switch to the Memory Module under the driver seat.
Again, thank you for your consideration.
