2005 Volkswagen Beetle ECM / relay / wiring diagnostic 01314 code

[@1mad_bug]

What if i have .77 voltage on the purple wire connected to the ecu once i disconnect and i have 12v on the wire

[@alpa7762]

you replaced new ECM, no programming required? Just plug and play? or buy unlock ECM

[@rokmoto67]

Sorry for the slow reply, This is my brothers Beetle I do the work on it. He sent the ECM out to an electronics place for testing/repair they concluded the chip was dead, it was getting power the board was powering up but the chip was dead on the board non-repairable. They also sold ECM's since they had his they matched it up to a PLUG & PLAY IMMOBILIZER Delete/Unlocked ECM same numbers. my brother bought it I plugged it in started right up he is still driving this Beetle today. Everything works as it should all power, alarm, ODB II, hook a VAGCOM up everything is as it should be, if I remember correctly he had to give them his VIN and they flashed the ECM with his VIN or something to make it plug and play to "his car"... I hope that helps

[@jameskinuthia8714]

This is very helpful..

[@sethyo66]

Did you find the root cause? I have similar issue

[@rokmoto67]

After checking all grounds and connections, relays and fuses, I had power everywhere to the ECM but no ECM power up I sent the ECM out for repair was told the chip on the board was good (no obvious burned/heat damage) the power supply on the board was good and powering up but the chip would not power up DOA. No idea why the ECM fried, I do know Bentley shows a 10A fuse for the ECM and the prior owner had a 20A in the socket, possibly a voltage surge and the fuse being 20A allowed the EMC to take the voltage hit and fry rather than blowing the fuse. Purchased an unlocked ECM / plug and play worked fine problem solved. This was last fall, been nearly a year and no problems, Beetle is still running great.

[@M0N0T0N0US]

@@rokmoto67where did you buy an unlocked ecm?

[@rokmoto67]

This is my brothers car, he found a company online that only sold ECM's, they would re-flash/repair the old one if repairable at one price, then they also sold replacements if the original ECM was no good, the original turned out to be a dead chip on the board could not be repaired .. They had a replacement and he bought it. I can ask if he remembers the name of the company @@M0N0T0N0US

[@M0N0T0N0US]

@@rokmoto67 would really appreciate if you could find out

[@rokmoto67]

@@M0N0T0N0US So I talked to my brother he said he bought the ECU from - TheECUConnection .. I guess they have a website and also an ebay shop, My brother is a computer tech/IT guy so I imagine he ask all the right questions, i remember him shopping around and taking his time before he bought an ECU and decided with this place was good. I can say it was plug and play everything worked on the car as it should, all power , alarm , remote everything works fine, Has been a couple/few years still driving the car no issues so far. I think he bought through their ebay shop for the "buyer protection what not" He said they programmed it to match his car their shop on ebay is - ecuconnection He also said their web site is TheECUConnection(dot)com I hope that helps

[@woodywoods5827]

I have the same problem its a 1.4 petrol i can't find the ecu relay its coming up low input its 2005 can anyone help me thanks

[@rokmoto67]

I am not sure on a 2005 1.4, is it a Beetle or something EU JETTA, Golf, Polo, Fox ? I am in the U.S., the 1.4 TSI "if I am correct" was not introduced here till 2015, JETTA/Golf/Beetles prior to 2015 petrol here are 2.0L / 1.8T / 2.5L at least any I have encountered. What is it I can see if maybe something in Bentley covers it

[@woodywoods5827]

@@rokmoto67 yes its a vw beetle im in the uk

[@danieldyke1074]

My purple wire is ground

[@PeterSmith-pg7oi]

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