Strange electrical problem: nothing happens on ignition

  • Hi. When I turn the ignition key, nothing happens ... No indicator light comes on ...

    The only thing that happens is that the speedometer needle slowly rises to 140, stops there briefly

    and then slowly drops back down to zero and the oil pressure only goes up to the top and stops there.

    stops - Otherwise happens, as I said, absolutely nothing ...

    (Battery is new / 80 Ah Bosch)

    This post has been automatically translated.

    Gruß, Thorsten

    928, Bj Februar`78. , deutsches Modell, Schalter, Tabakmet., Leder, Klima, Tempomat,

    Bumper der US - Ausführung, sonst original

  • How old is the ignition switch?

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    Un saludo

    Schocki :khat:

    1987 944 Turbo, R.I.P. :pop:
    1991 944 S2, Kobaltblau, verkauft :kbye:
    1972 911 T Targa, Geminiblau aka "Shelley" k:ok:
    1992 928 GTS, Amazonasgrün aka "Das Phantom" :kyippie:

    It's not the speed that kills you, it's the sudden stop k:secret: .

  • Hello,

    I had a similar phenomenon when my battery had a problem with the grounding on the body, but still overlaid by a bare cable of the license plate light.

    Greetings

    Thilo

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    928 S3 32V 288PS EZ09/87 VIN WP0zzz92zgs841924

  • Turn the key and measure the battery voltage at the same time.

    If it drops noticeably below 12 volts, the battery may be too empty.

    Otherwise, measure before and after the ignition switch.

    Or a ground connection is missing.

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    Porsche Cayenne - 9PA/957 - 0583/ABH - 3.6FSI VR6 24V 4X4 - 2008 - 185.000 km

    Durametric Easy :thumbup-alternative:

    ICARSOFT CR PRO :thumbup-alternative:

  • How old is the ignition switch?

    Well, still the first ... But there were never problems. Only now suddenly.

    This post has been automatically translated.

    Gruß, Thorsten

    928, Bj Februar`78. , deutsches Modell, Schalter, Tabakmet., Leder, Klima, Tempomat,

    Bumper der US - Ausführung, sonst original