Engine Start Blocked by Immobilizer

**randomlog** · 28th July, 2014, 02:45 AM

hi my friends, how are you?

Yesterday i tried to turn on my a4 b6, but the immo has blocked it after 2 o 3 seconds.

a little of history, in 2012 the water has suck my motor, so , after 18 months, the motor works again.

Well, i get some errors in engine and instruments modules

Engine Module:

18056 - PowerTrain Data Bus
P1648 - 004 - Failure

17978 - Engine Start Blocked by Immobilizer
P1570 - 008 -

Instruments Module:

01314 - Engine Control Module
49 - 00 - No communications.

i attach one picture of errores.
IMG-20140727-WA0001.jpg

When the car Start in dashboard i can see:

abs light on
esp light on

rpm, km doesnt work

i hope your help!!

Thanks in advanced.

**metercar** · 28th July, 2014, 03:42 AM

check fuses friend, wiring and gateway module

**simaservis1108** · 28th July, 2014, 09:31 AM

Dash and ECU are not connected.You need to check K-Line,I think that there is your problem.Get wiring data for your car and start from there.

**randomlog** · 28th July, 2014, 01:11 PM

Thanks, OK this night i'll try to check fuses, battery voltage, ground, and another wires.

i need resolve this issue fast to go to home, if i can disable immo from dashboard bin, the car would start engine ok?.

EDIT:

I'm watching a video of the dashboard but the IMMO light does not turn on.

**simaservis1108** · 28th July, 2014, 02:48 PM

Does check engine light turn on?

**randomlog** · 28th July, 2014, 03:10 PM

Originally Posted by simaservis1108

Does check engine light turn on?

Nop, check engine light off.

**super jumbe** · 28th July, 2014, 03:28 PM

From my last experiment remove ecu plug from car, for few min replace and try again.

**achaccha** · 28th July, 2014, 03:31 PM

From what I see you have a problem with the engine ecu. it may be that it lacks 12V power feed or maybe lacks ground. well check fuses and wiring first. so long without work may be that the rat ate the wires
luck

**simaservis1108** · 28th July, 2014, 06:03 PM

Definitely check K-Line.Wiring is the problem for sure.

**randomlog** · 28th July, 2014, 06:19 PM

Hi, here you have a video of yesterday

**electrones** · 28th July, 2014, 07:21 PM

Hi friend

Check fuses, wiring, main relay for ecu and k-line , strange immo light doesn't work too.
Scans in all modules to see DTCs.

Cheers

**randomlog** · 28th July, 2014, 07:30 PM

Originally Posted by electrones

Hi friend

Check fuses, wiring, main relay for ecu and k-line , strange immo light doesn't work too.
Scans in all modules to see DTCs.

Cheers

hi thanks for your help, where are main relay for ECU and K-line please?.

**randomlog** · 29th July, 2014, 02:08 AM

hi ,we tried with another ecu without immo and car start OK.

can anyone remove immo of my dump?.

**cjawahir** · 29th July, 2014, 02:39 AM

hi here is immo off for your ecu , let me know if it work

its strange that i dont see engine check light on dash , but you did scan both the cluster and engine ecu .

cj

**randomlog** · 29th July, 2014, 03:50 AM

Originally Posted by cjawahir

hi here is immo off for your ecu , let me know if it work

its strange that i dont see engine check light on dash , but you did scan both the cluster and engine ecu .

cj

hi, thanks i?ll check tomorrow.

How you can disable immo?.

Yesterday i made a dashboard test with vag and the IMMO LIGHT / CHECK ENGINE never turn on... others light turn on OK. (thats normal?) i dont remember if anytime i saw immo light turn on in this car :/

we tried with another 1.8T ecu and car start ok, dashboard rpm ok, km ok, temp ok, tank ok, fis ok.