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Thread: ALH diesel coolant glow plug question

  1. #1
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    ALH diesel coolant glow plug question

    Is there a way to activate the coolant glow plugs via vagcom or check the function to see if they are working with vagcom?????
    Thanks Brett

  2. #2
    Ross-Tech Employee Eric's Avatar
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    IIRC output tests will have one step for low power relay and one step for high power relay. I haven't worked on an ALH in so long that I forgot the standardized numbers for them
    You ain't metal till you got a clutch pedal

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    Where would the output test for the coolant glows plug be located? I just want to hear if the relays are clicking on and off.
    Last edited by 1975 Kombi; 04-29-2019 at 10:08 PM.
    Thanks Brett

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    Benevolent Dictator Uwe's Avatar
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    As this is an old, relative low-tech ECU, you'll have to step through the pre-programmed (in the ECU's firmware) sequence of tests to find out what's in it.

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

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  7. #5
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    OK thanks will do
    Thanks Brett

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