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Discussion Starter #1
I got a 2001 beetle that cranks but won't start. I was able to get code 01314 & 01321 from address 17. Can't get anything from address 01 because ecu won't communicate.

The can-bus requires a resistor to function. That resistor is in the ecu and can be checked by testing pin 58 & 60 for ohms (specs: 60 - 72 ohms). If not within specs replace ecu.

I tested my ecu for ohms between pin 58 & pin 60 and I got nothing. So I got another ecu, installed it, same problem. Tested replacement ecu for ohms between pin 58 & 60 and again nothing. I tried 3 replacement ecu and it appears that as soon as I install another the resistor gets fried.

Clearly I need to figure out what causes the resistor to get fried immediately upon installation. Any ideas on how to do that?
 

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Discussion Starter #2
Actually it was pin 31 & pin 42 not 58 & 60. And its suppose to be between 60 & 72 ohms. But I get a reading of 750 -790 for all the ecu's I have tested even one that has never been hooked up to my car.
Can that be right?
 
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