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2006 Lexus gs300 My car started jerking about 4 days ago when it down shifts into first(5-0 mph). Code barley pop up and it says PO756 shift solenoid b. Does anybody know where solenoid b is located? There is like 6 solenoids. Can it be the ECM because some people said they had the Same issue and it was that. Please help
Last edited by Bertshaw; May 31, 2018 at 05:55 PM.
Reason: Add
So your problem started after you replaced the alternator? Maybe you missed a loose wire connection, installing the alternator.
Many who have had their transmission ecu the majority were 2006 GS300 I dont think it cost much to have it tested and repaired. May as well send it out for repair.