Need help with my VW CEL Codes
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This is a discussion on Need help with my VW CEL Codes within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; So I finally decided to get my CEL checked on my stupid 99 2.slow vw jetta... B0423 P0140-02 Sensor Circuit ...

  1. #1
    Registered User lytlec's Avatar
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    Need help with my VW CEL Codes

    So I finally decided to get my CEL checked on my stupid 99 2.slow vw jetta...


    B0423
    P0140-02 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)
    P0141-Rear Heated Oxygen Sensor Heater Malfunction

    I am gonna try to figure out what they mean...the B code said looking in manual which I don't have and the two P codes mentioned something about an oxygen sensor....not sure. Anyone of you VW guys/ladies have any knowledge?
    Last edited by lytlec; 07-11-2011 at 01:29 PM.
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    Registered User Heide264's Avatar
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    borked.

    B0423 - Missing additional low.
    P0140 - Missing Group N Engine Mounts.

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    Registered User lytlec's Avatar
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    Haha...hey...I have Group N Engine Mounts...and no one wants to buy them!!
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  5. #4
    Mace Windu devilfluff's Avatar
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    p0140 & p0141 are both bank 1 sensor 2 oxygen sensor codes, no activity & heater circuit failures.

    The b-code is a body control module code, but it isn't listed in Mitchell, sorry.
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  6. #5
    Mace Windu devilfluff's Avatar
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    Did some digging, there is a TSB for the b0423 code:\

    http://www.justanswer.com/uploads/PE...614_beetle.pdf

    It is actually a p1176 code, which is also a bank 1 oxygen sensor code...
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  7. #6
    Registered User lytlec's Avatar
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    Hmm...I figured out that I was just going to replace the post cat o2 sensor and go from there! Thanks for finding the info on the B Code!
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