s/n 0G228379
1995 Merc 200 EFI Xri
Getting a constant beeeeeeep horn with the engine cold sitting in the driveway as soon as key is turned to ON position. However, at other times I get the correct beep cycle that indicates all is good. The owners book states constant beeeeeep is engine high temp and beep beep beep is oil related.. I have unplugged both sensors and still get a constant alarm. I have replaced both sensors as well as the ignition and the alarm module itself. Still get intermittent solid alarm sound. I have traced out all wiring looking for short (ground) and all wires appear good. Oil system is still intact on this motor just like it was the day it was built.
I believe the problem to the warning module (Merc part # 41470A25) or the Controller Assembly detonation (Merc part # 14856A14)
However, before I replaced the ignition, I could slightly wiggle the key and the alarm would stop. I realize I'm all over the place with symptoms/possibilities. Has anyone else experienced the same issue.?
oil system appears fine. Remote tank is full. Oil tank under cowling is good. Also have disconected wires from engine mounted oil tank and still had alarm. In other words I have isolated/unplugged every sensor (heat or oil) and still get constant alarm....and then at times I turn the key and it beeps as if all is good!!! frustrating to say the least.
any help/thoughts would be greatly appreciated.