Well its been a bad weekend. My Golf started throwing up intermittent 'Transmission Error' messages last week. It would happen while driving and eventually stayed on long enough for me to run a VCDS scan. No real running issues with the car at this point, but a slight bump when shifting to reverse. Also, when I engage the "manual shift mode" (is this Tiptronic?) it never shows me first gear anymore...just straight to 2nd even when starting from a full stop or downshifting all the way. Otherwise it drives fine, no limp mode. The error is now permanently displayed by the MIL.
Long story short, I am trying to figure out what's happened and what to do. I bought this car "certified pre-owned" from the dealer. They claim to have checked all the fluids before selling to me. I purchased it at 47K...and the service interval for Transmission fluid is 50K. It now has 78K on the odometer. Would they sell me a car with dirty transmission fluid? Don't answer that - we all know they would. I guess I am wondering if anyone can help me further distill the issue based on the VCDS output.
Here's what I'm getting so far from VCDS:
Address 02: Auto Trans (J217) Labels: 09G-927-749-V2.clb
Part No SW: 09G 927 749 D HW: 09G 927 749 D
Component: AISIN AG6 G3 109 2866
Coding: 010200000C000000000000000000000000000000
Shop #: WSC 00066 790 00201
ASAM Dataset: EV_TCMAQ250031 002009
ROD: EV_TCMAQ250031_002_VW23.rod
VCID: 3A7B4628BD320E561D-806E
1 Fault Found:
22944 - Shift Solenoid 2
P0977 00 [171] - Short to Plus
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 4
Fault Frequency: 33
Reset counter: 65
Mileage: 78780 km
Date: 2020.11.19
Time: 22:13:22
Engine speed: 1499.0 /min
Transmission input speed: 1499 /min
Transmission output speed: 1311 /min
Engine torque: -28 Nm
Transmission fluid temperature: 29 ∞C
Accelerator position: 0.0 %
Clutch_C1: closed
Clutch_C2: closed
Clutch_C3: Open
Clutch_C4: Open
Clutch_B1: Open
Clutch_B2: Open
Lock Up Clutch: closed
Electrical Oil Pump target revolution: 65534 /min
Electrical Oil Pump actual revolution: 65279 /min
Engine Speed signal Current: 65279 /min
Electrical Oil Pump failure status with Electrical Oil Pump without HV 1: Motor normal stop
Electrical Oil Pump target current: 65278 mA
Certified pre-owned junk that's Volkswagens for you you should have never bought it in the first place. Those transmissions are so complex the last time I had a customer have one rebuild it cost them $5,500. Good luck gllad it's not mine and I'm glad I'm not working on it
As much as I'm agonizing over this ordeal, your answer (while only somewhat helpful), is 100% correct. Its a failed shift solenoid electrical connection that somehow I am to blame for. VW quoted $2500 in parts alone to replace the entire Valve Body. LOL!