GM Bonneville/Eighty Eight/LeSabre 1986-1999

Reading Codes

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See Figures 1 and 2

Diagnostic fault codes can only be read through the use of a bi-directional scan tool, such as GM's Tech 1® or equivalent. There are no provisions for "Flash Code" diagnostics. Follow the scan tool manufacturer's instructions.



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Fig. Fig. 1: ABS Diagnostic Trouble Codes - 1994-95 vehicles



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Fig. Fig. 2: ABS Diagnostic Trouble Codes - 1996-99 vehicles

 
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