2006 Volkswagen Rabbit crank no start and no scanner communication at times

Victor Technician Glendora, California Posted   Latest  
Updated
Driveability
2007 Volkswagen Rabbit 2.5 2.5L (BGP) 6-spd (09G) — WVWDS71K27W198205
Crank / No Start
No Scanner Communication
Code 1314 Engine Control Module

Hello all, I have a 2006 VW Rabbit with a Crank no start condition. At times the PCM will not communicate with the scan tool. The vehicle went in to a shop for a smog check and failed due to check engine light being on, the customer stated that the smog shop cleared the codes and the vehicle never started again. They took the vehicle to another shop who said that the transponder key had somehow lost the programming and referred them to the dealership. The customer took the vehicle to the dealership where they reprogrammed the key and still crank no start. dealership suggested further diagnostic and the customer chose to come to us for the diag.

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Rudy Technician
Montebello, California
Rudy Default
 

Sooooooo, what have you done so far?

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Victor Technician
Glendora, California
Victor Default
 

Not a whole lot yet, just getting into it. Thought id post first since the story is kinda weird and its been to multiple shops

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John Technician
Cape May Courthouse , New Jersey
John Default
 

VW has a tsb regarding communication from the DLC. I’m not at the shop right now, but if you have service information you should be able to find it.

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Randy Diagnostician
Glendora, California
Randy Default
 

Check tsb # tt 24-13-02

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JB Owner/Technician
Minneapolis, Minnesota
JB Default
 

Seems to me like if the no start no comms issue started AFTER the smog shop had it then we have a good chance they caused it. I'd be looking at the dlc for damaged/spread pins. Check your CAN network resistance. Outside of that if be looking to see if all the modules appear to still have their programming. Some aftermarket garbage scanners have been known to erase coding from modules.

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Victor Technician
Glendora, California
Victor Default
 

Good point. I feel like the customer isnt getting the full story from them

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Randy Diagnostician
Glendora, California
Randy Default
 

Back prob ecm an check can com . If good check power and grounds with headlight bulb at ecm. If checks good call ecm . As long as you com with other modules

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Victor Technician
Glendora, California
Victor Update
 

Does anyone know if its possible to install and flash used PCMs on these vehicles?

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JB Owner/Technician
Minneapolis, Minnesota
JB Default
 

Victor, not without highly specialized tooling. This is immobilizer gen IV if I'm not mistaken which means you need a LSID and credentials just to deal with the security/immobilizer (but that won't solve the VIN writing issue). Tools like VVDI and Abrites do this but they aren't inexpensive and they are not made for beginners.

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JB Owner/Technician
Minneapolis, Minnesota
JB Default
 

You can also check with companies like xemodex for rebuilding the existing ecm.

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Randy Diagnostician
Glendora, California
Randy Default
 

g7computers​.​com check this company out . I have used them in past

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