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Multiple Electrical Issues V70-XC70 2001

posted by  Brit on  Sun Oct 25 18:27 CST 2015
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Hi all,

I bought my 2001 XC at the end of 2014. I love the car but have had a few issues such as the tailgate and drivers door that sometimes lock, but most of the time don't. I can lock the drivers door manually with the key, but there is no way to lock the backdoor. I recently bought a scanner and went thorough the electrical system and found error codes in the Central Electrical system (CEM-6A01), Up Electrical System (UEM-0004), Rear Electrical Module (REM-8F63), Drivers Door Module (DDM-0049), Climate Control Module (CCM-0003), and Steering Wheel Module (000A). With so any electrical issues, I'm wondering if the car may have been in a flood, or maybe the problems lie in the main computer. Any feedback/suggestions would be very welcome.

If it turns out that I need to replace several modules, is this something an average Joe can do, or should I take it to a professional?

Thanks in advance








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    Multiple Electrical Issues V70-XC70 2001

    posted by  B.B. on  Mon Oct 26 12:20 CST 2015
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    last visit: Mon Oct 6 13:15 CST 2014
    [RELATED]

    The first problem I had was finding a good wiring diagram for your car.
    I have the early version 2000 V70 and couldn't find the list of components which
    are supposed to in a fold out in the back page.
    The index says central locking for the V70 is Pg 260 and in the PDF file
    pg 260 is found on page 290 with 291 showing where components are.
    You have to be clairvoyant to tell what 3/76 3/78 3/100 3/109 are
    I guess 3/100 is the drivers door lock assembly.

    Search for good wiring diagram for your car and post back
    They are usually free but here's one someone wants $10 for: Maybe a division of Google? and suddenly the free ones get scarce.

    https://www.tradebit.com/filedetail.php/277879325-volvo-s80-v70-late-model-s80-executive

    Lots of codes are daunting. But start by fixing each problem one by one.

    for instance can you lock/unlock the doors at each door?
    Look carefully to define what works and what doesn't

    My first Volvo a 740 sedan and every door lock motor was shot. Dunno
    how all the locks went away? Maybe the car was hit by lightning?
    I found good lock motors in the junk yard for $20-25 each X5

    First hunt down a good wiring diagram. Post back where to find it.

    Bill






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