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Old 09-04-2005, 12:08 AM
ray95e320se ray95e320se is offline
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Join Date: Jun 2005
Location: NE , Pennsylvania
Posts: 21
98 C230 Both Power Seats Inop At Times

Hi Smartkey, My wife has been telling me for the last few weeks that the power seats in her 98C230 are inoperative at times. Checked them twice & they were workng ?? Comes home from the grocery store yesterday ,seats not working. Grab my digital volt meter & checked across seat fuses on under hood fuse panel,all OK. Fuse panel cover panel says there are related fuses in trunk.Removed trunk floor trim ,all fuses OK .Don't know where the seat relay is located . I suspect an inter- mitent connection , see 2 relays under a black plastic under cover with 3 fasteners & remove panel. Wife is turning key on & off while I listen & feel for relay click. One relay is mounted vertical & the other horizontal.Checked the one left (horzontal),have 2 input BAT volt- age readings for power feed & coil feed & relay is clicking ,trigger circuit OK. Check output on 12 guage Pink/white- BINGO - NO OUTPUT Remove relay cover,check contact points for continuity with ohm meter & then under duty load for current flow.Both tests OK. Check solder connection to circuit board with a magnafying glass on the output pin. There was a small circle crack in the solder around the pin. Cleaned up the old solder & resoldered the connection & it's operating as designed. My Motto "Repairs though testing " ---- Ray
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