wiring for 2002 passat 1.8t TCM

  #1  
Old 06-14-2009, 01:41 PM
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Location: Wisconsin
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Exclamation wiring for 2002 passat 1.8t TCM

Hi, guys and gals I am looking to see if anyone would possible have some wiring diagrams for my 2002 passat 1.8T transmission control module. I have got some info from a vw guy I talk to and found out that on my 88 pin harness for the module I am not getting my 12vdc constant to my number 26 pin to the TCM. All my ground and fuses are good and this is the only thing in my testing that was faulty. I just need to know where this wire goes from here to trace it back. I also applied 13.8v to the wire for this pin and and plugged it in and it still didn't work and I still had all the selector lights bright on the dash. I may need a new relay not sure just need to find out where this wire goes. thanks
 
  #2  
Old 06-15-2009, 04:56 PM
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I found what I needed but if anyone has any good knowlage of this it would be helpful of how you could have low incoming voltage to the harness on pin 26
 
  #3  
Old 06-15-2009, 04:58 PM
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Please post the fix you found
 
  #4  
Old 06-17-2009, 08:46 AM
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After tracing down the wiring all the way from the power distribution block located under the dash on th edrivers side of the car to the fuse panel all the way over to the harness block on the lower A-pillar or right side kick panel, I found in the brown 15 pin harness the male pin on the the harness going to the TCM had corrosion and actually came off and was not completing the sircut to supply the constant 12Vdc to the module. I ran a jumper wire from the female end of the brown harness to my male end and got my 12.7v from what the battery had in it. So, now I have voltage to all the correct pins but my selector onthe dash is still all lit up. So, I will have some one come out and erase the codes with a VAG and see if this helps.
 
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