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2002 Mercedes-Benz C240 Question: alternator

 

Question

dzotalis, Atlanta, GA, June 10, 2011, 17:12
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alternator replace and car still want crank and brake lighs want come on

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  • Answer #1

    raiderron June 11, 2011, 02:24
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     Master

    The alternator will not cause a no crank condition unless the battery is down because of faulty charging. If the brake light switch is bad, draining the battery, can cause the no crank and no stop lights.

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  • Answer #2

    North Fulton Auto Center (22 Answers) , Roswell, GA - (770) 212-2029
    NFAC June 11, 2011, 10:51
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     Technician

    Why did you replace the alternator? The engine spins over? The brake lights are not on a battery bus, should only work with the key on. The rear SAM module may be keepng the brake lights on, and it plays role with the fuel pump.

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