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VW MKV-A5 Golf/Jettas Discussions area for A5/MkV Jetta/Golf (2005/2006 PD and 2009 CR).

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Old May 23rd, 2018, 11:14   #1
Join Date: Jan 2008
Location: Prescott Valley AZ
Fuel Economy: 44 mpg
Default start stop- vcds "CAN NOT READY"- immobilization

Please help us. Our 2006 Jetta TDI is down.

3 weeks ago, I replaced driver door harness with new correct harness. Then I got no door operations from drivers door, so the new harness was defective. This is when start stop problem started. No glow plug lights that should come on. The gold key/car icon came on, then off after trying to start. Radiator fan comes on super fast and always stays running.

Next I repaired the old harness and reinstalled it. All driver door functions work now. The car still goes into start stop mode. I guess it went into immobilization.

Got a vdcs hex + can cable from AArodriguez (Malone Tuning) dealer. Got the latest version of VCDS hooked it up. When I tried to test the USB port the last line of the output said "CAN: Not Ready". When I tried to Auto Scan, all I got is "Function not supported by gateway. Tried the cable on a 2003 Jetta tdi (doesn't have CAN gateway) and and the Auto Scan worked. We sent the cable back.

We have been researching this VCDS problem everwhere to no avail. Was going to buy new hex cable from Ross Tech and Ewe Ross wrote:
"If I had to take a wild guess, I'd say your car's CAN gateway is out to
lunch. Have you that the Gateway is getting power as it should?

You can certainly order a HEX-V2 from is, but if you car's CAN geway
isn't working, doing so won't get you any further than you already are."

So how do I find out if the gateway is getting power? The part number of the gateway is 1k0907530f. How can I replace the gateway without knowing the identifiers (PIN etc.) of the current gateway? Is there a fuse or relay to check?

Please help us to solve this. We cannot afford the stealarship prices. We got ripped of from them the last time for a clutch slave cylinder and unnessiary master brake cylinder. $$$$$ Any assistance would be graitfully appreciated.
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Old May 24th, 2018, 15:38   #2
Join Date: Jan 2008
Location: Prescott Valley AZ
Fuel Economy: 44 mpg

I posted this issue in Ross Techs's web site and came back with an answer within 15 minutes. I was told to check the 5 amp fuse in bay holder #12 in engine compartment. There was no fuse. I installed one and the car started right up. Radiator fan stop coming on high when cold, glow plugs lights came on then went off. Check engine light came on. PO600 misscommunication to serial port. I cleared that. It is off. That was probably from hex can not ready. The only light that is on is the seat belt light. No chimes.
Now this should be an easy one for all you 79 people who have looked at my issue with no insight.
How do you turn off the seatbelt light? I sent my hex cable back.
Three weeks was down and out. At least the stealership did not get me!
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