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Another rear ABS wiring rebuild . . . ABS codes C0050, C0245
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Posted by Mark-in-Marine (more from Mark-in-Marine) on Wed, 11 Aug 2021 12:53:26
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Thanks to Dano in Texas, who posted back in July 2014:
ABS Wiring Fix – 1999-2005 SAAB 9-5 Sedan and Wagon. [ 2006 seems same ]
"Fix for ABS/TCS warning due to wiring problem (loss of communication w/rear wheels). Started having problem in 2010. Sent ABS unit off to BBS, problem returned. Dealer checked with Tech 2 and replaced left rear wheel sensor. The wiring bundle comes in at the base of the footwell so you need to get under the carpet. When the dealer replaced the wheel sensor they stated if problem returned the fault was probably in the wiring junction. But I never knew where to look until now."
My patient vehicle is my daughter's 2006 Sport Combi w sport suspension - at 170K miles. ABS dash lights ('Christmas Tree') have shown up intermittently. OpCom shows ABS codes as C0050 and C0245 - these are the codes for losing communication with the right rear and left rear, respectively. I did this job on my other daughter's similar 2006 Sport Combi about three years ago with about 126K miles at the time, and the problem has not recurred. This time I immediately looked for the codes - the OpCom reader will read these codes, but does not tell you what they indicate, and I don't think it can reset them either - but it is better than a wild guess. OpCom will not tell whether the codes occurred at same or different times. In the absence of visible damage to exterior wire harness I will rebuild the junctions and see how it goes.
I will post success / failure.
Mark in Marine
posted by 50.33.49...
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