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Thread: Buzzing from light transformer!!

  1. #1
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    Default Buzzing from light transformer!!

    Hi fellas ive just bought a 05 Vectra 3.0 CDTI and when I turn on the lights theres a loud buzzing coming from the light transformer in the boot
    Starnge thing is if I brake the buzzing goes away. Any ideas???

    cheers

    Gazzarn

  2. #2
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    Melbourne, Australia
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    Default

    Braking would change the PWM duty cycle applied to the brake bulbs. Not sure why it would buzz though. I assume "light transformer" means "rear electrical centre".

  3. #3
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    Default Buzzing has gone :-)

    Had the car re mapped today and its solved the problem strange eh!!!! thanks anyway

    Gaz

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