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T4 Immobilizer code on OBD

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  • #1

    T4 Immobilizer code on OBD

    Hi guys, a couple weeks ago the T4 decided to not fire, so i got a mate around to plug the OBD in and voila (see attached)

    Wondering if anyone knows where to go from here? Easy fixes? He seems to think its a send away for reprogramming job.

    appreciate any insights.

    Cheers
    Attached Files
    Tags: easy, fixes, insights, obd, send
  • #2
    Did you try Mr Google, here's one.
    17978/P1570/005488 - Ross-Tech Wiki
    Understand how it works, troubleshoot logically BEFORE replacing parts.
    2001 T4 TRAKKA Syncro 2.5TDI,2006 Mk5 2.0TDI Golf manual,2001 Polo 1.4 16V manual [now sold], '09 2.0CR TDI Tiguan manual,
    Numerous Mk1 Golf diesels

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    • #3
      Clear the codes, and make sure the MAF is plugged back in.

      I assume it's a petrol? It's probably a dead coil, or the ECU relay has crapped out.
      '07 Transporter 1.9 TDI
      '01 Beetle 2.0

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      • #4
        Could be a problem with the key as there is a immobiliser built into the point where the key is plugged in , it reads a code from the key and it its not sending it wont start . Have you got a second spare key try that , the relay mentioned is a BCM relay and they DO fail , mine stopped the van almost mid intersection .

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