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91 Eldo Codes

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· 2007 DTS
2007 DTS, 1991 Eldorado(retired), 1999 Deville (retired)
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My 91 Eldo with 113,678 on the odometer just threw these codes: E047,E048 and:B120,121,333,334,335,336,337. When I was driving the dash went blank and then came back on but nothing was working as it should. The speedometer was not working, the odometer and trip meter, the gas gauge was blinking 16 gals., and the OBD displayed system trouble and the climate control didn't work. Any suggestions? After turning it off and clearing the codes everything was back to normal!
 
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bschelle
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