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2010 California Faults

Discussion in 'Technical Q&A' started by sherrillt, Dec 23, 2023.

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  1. sherrillt

    sherrillt Formula 3
    Rossa Subscribed

    Jan 1, 2009
    1,108
    Northern Virginia
    #1 sherrillt, Dec 23, 2023
    I just completed a diagnostic scan and got a list of the following codes that I am hoping to get some technical feedback on as I attempt to address the issues :

    P0572 - in brake switch too low: (note: I do not have any brake fault light on the dash or noticeable brake performance issues)
    P0A31 - CAN message (vehicle speed odometer)
    P0A50 - No data for NQS

    B1908 - in-car climate sensor: (note: climate control works but appears to be delayed for 5-10min)
    B1820 - fan error

    P2140 - throttle/pedal switch E/F voltage: (note: No noticable driving or performance issues)


    U1700 - Lost communication with NBC:
     
  2. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    6,694
    Central NJ
    Full Name:
    Dominick
    #2 flash32, Dec 23, 2023
    Are they current or history

    Normally some of the voltage issues are caused by a once or current weak battery

    Since you recorded them wipe them out and drive to see if they come back ..

    When you do a scan again try to scan the individual systems that you had errors on and not a health check

    Sometimes the health check causes temp error bus comm

    Sent from my moto g power using Tapatalk
     
  3. sherrillt

    sherrillt Formula 3
    Rossa Subscribed

    Jan 1, 2009
    1,108
    Northern Virginia
    #3 sherrillt, Dec 23, 2023
    Appreciated - I cleared all the codes and went for a drive. Obviously they were most likely historical as the concerning majority did not reappear (yet).

    Any recommendations on what to look at for the B1908 - in-car climate sensor
     
  4. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    6,694
    Central NJ
    Full Name:
    Dominick
    #4 flash32, Dec 23, 2023
    You can use live data stream on your diag tool and see if it has a data parameters for that sensor ...

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  5. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    6,694
    Central NJ
    Full Name:
    Dominick
    #5 flash32, Dec 23, 2023
    You can also look at a parts diagram/wire diagram and see if any of the connections going to the AC unit /fan /sensor etc are loose .. you can reseat them

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