03-03-2010, 03:21 AM
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#1 (permalink)
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Join Date: Aug 2008
Location: Atlanta, Georgia
Posts: 365
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HELP! Speedometer. Brake light and ABS
This started with the brake light and ABS light coming on. Then the speedometer starting acting up, then the cruise control quit working, I get DTCs 1693 and 1603 (I think it is 1603 I took them a month ago).
I have changed the ABS sensor on the rear end, checked the wiring from the ABS switch to the engine compartment for continuity, checked all the fuses, changed the Cam Position sensor and I still have a speedometer that goes to zero when I accelerate and when I let off it goes up to my approximate speed. The Brake light and ABS still come on. However, when I checked this afternoon I did not have an y DTCs stored.
I hope I have used the right terminology for the parts.
I am at a loss and I am going on a long trip this weekend and the cruise is my only hope for not getting a speeding ticket.
Any help would be appreciated.
Paul Harlacher
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1999 2500, 4X4, Auto, Edge CTS/Smarty, HO InjPump, 150 HP RV Inj, SuperB Twin Turbos, ARP head Studs. Garmon Torq Convertor, TranValve Body, Pressure plate. Turbonectic Intercooler ,Hytec-Diff and Tranny Covers, Air Lift Air Springs,
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