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#1
09-13-2008, 01:31 AM
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1993 E300 ,No check engine light on dash or under hood
I am hoping that someone can point me in the right direction on making my check engine light work.Car has the M104 3.2L motor .Dash light and diagnostic box under hood are both dead.Bulbs are good.Need some diagnostic info on repairing or tracking down this problem.Car has good bulbs,new engine wire harness but no diag capabilaty
HELP Rich
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88 300E White, sold 9-04  88 190E Black 2.3 sold 90 300CE White, Grey sold 12-24-04  92 400E White,Grey Sold 5-06  90 300CE 91K Signal Red,Black Sold 2007 1989 300CE Smoke silver,Tan Sold 1-08 1993 300E 3.2 M104 motor  1991 300CE White,Grey  1994 E420 beautiful car,gone to new home 1994 E320 Smoke an Parchment.Beautiful car 
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#2
09-13-2008, 10:34 AM
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Check for 12v at pin 16
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A Dalton
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#3
09-13-2008, 08:10 PM
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Yes no.16 has 12v.,,also no 1 has ground and 3 has 12v.
Today the light on the diag box lights up but no code flashing. I last checked diag box about 3 weeks ago.Will recheck dash bulb this week Thanks Rich
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88 300E White, sold 9-04 88 190E Black 2.3 sold 90 300CE White, Grey sold 12-24-04 92 400E White,Grey Sold 5-06 90 300CE 91K Signal Red,Black Sold 2007 1989 300CE Smoke silver,Tan Sold 1-08 1993 300E 3.2 M104 motor 1991 300CE White,Grey 1994 E420 beautiful car,gone to new home 1994 E320 Smoke an Parchment.Beautiful car
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#4
09-13-2008, 08:36 PM
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Change fuse #9....Circuit15/8 amp.
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A Dalton
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#5
09-14-2008, 11:37 PM
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Replaced the fuse,no change.Light on unit under hood lights up when I push button,but does not flash any code.Not even a one.Dash light does not light,wire is dead.Tried my home made tool to check for blinking code ,nada.
Dumb question,do codes come from computer or that box under hood.I do smogs and have seen this problem about 4 times now,so i would think computer is the source of codes.Just does not hurt to ask. This week i will check IATN for info from them. Thanks for your time Mr. Dalton Rich
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88 300E White, sold 9-04 88 190E Black 2.3 sold 90 300CE White, Grey sold 12-24-04 92 400E White,Grey Sold 5-06 90 300CE 91K Signal Red,Black Sold 2007 1989 300CE Smoke silver,Tan Sold 1-08 1993 300E 3.2 M104 motor 1991 300CE White,Grey 1994 E420 beautiful car,gone to new home 1994 E320 Smoke an Parchment.Beautiful car
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#6
09-15-2008, 11:04 AM
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Codes come from N/59 emmissions module.
Are you using the correct code retrieve procedure ? ..and be aware that the N/59 will not Flash Back any codes until the module has done all Self Test. The question is .......Do you have a CE lamp when you turn the key to the Run posistion before starting the car??
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A Dalton
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#7
09-16-2008, 02:14 AM
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Check engine light on dash is dead,bulb ok,no ground signal to bulb.Where is the n59 located?
To pull codes I push down button for 3-4 seconds with key on.light on box lights but that is it.I have tried many times but nada.I am using box near battery and have done this many times on other cars,guess I am lost at this point.Have owned this car for about 4 months and it never worked. Lost Rich
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88 300E White, sold 9-04 88 190E Black 2.3 sold 90 300CE White, Grey sold 12-24-04 92 400E White,Grey Sold 5-06 90 300CE 91K Signal Red,Black Sold 2007 1989 300CE Smoke silver,Tan Sold 1-08 1993 300E 3.2 M104 motor 1991 300CE White,Grey 1994 E420 beautiful car,gone to new home 1994 E320 Smoke an Parchment.Beautiful car
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#8
09-16-2008, 12:05 PM
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I think PO may have done some disabling to get rid of a CE , so you are going to have to get a schematic and start tracing.............. Do you get any codes from the other modules w/home-made tool???
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A Dalton
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