2005 Deville systems error

2005 CADILLAC DEVILLE
40,000 MILES • V8 • AUTOMATIC
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DRMALT
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When I first turn on the ignition, the 'service electrical system' comes across my computer. My deville is 2005.
Aug 5, 2011 at 3:13 PM
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WRENCHTECH
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It's making you aware that there is an issue somewhere. If someone puts a professional scan tool on it, there will be more specific codes in there. Check all your lights, including brake lights first.
You might also be able to pull codes yourself by pressing OFF and WARMER on your A/C when the unit is off and it should go into diagnostic mode.
Aug 5, 2011 at 4:13 PM
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CADIEMAN
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you need a obd 2 scanner to get the codes scince 1996 when obd2 started .
Aug 5, 2011 at 6:11 PM
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WRENCHTECH
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Yes, it looks like you will need a professional scan tool capable of reading body codes.
Aug 5, 2011 at 6:18 PM
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FACTORYJACK
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Info button up, and on/off will get you into on-board diagnostics.
Aug 5, 2011 at 6:48 PM
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