I lost all my gear 1-8 slowly but surely then lost 11 and 12 - so only 9 and 10 was working.. checked fuses - harness and then broke down and bought the 70.00 solenoid. Got my 9 thru 12 back - but still missing the lower gears... shows an error code of 65 1-6 no good.. I have scoured and searched.. help help help..what do I need to replace now. bringing in to dealer is not an option.. and no owners manual.