A/T Tranny shift is harsh. P0966 Pressure Control Solenoid Valve B Circuit low

Discussion in 'Mechanical Problems & Technical Chat' started by Dennis Vega, Nov 19, 2019.

  1. Dennis Vega

    Dennis Vega Well-Known Member

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    2012 Honda Civic LX 1.8 - I’m not sure if I replaced the right part but shift is still bad. I did drain & full with the recommended Honda transmission fluid. Could it be a sensor like TPS or something? Please help!
     
    Dennis Vega, Nov 19, 2019
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  2. webby
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    P0966 HONDA Possible Causes
    • Faulty A/T Clutch Pressure Control Solenoid Valve 'B'
    • A/T Clutch Pressure Control Solenoid Valve 'B' harness is open or shorted
    • A/T Clutch Pressure Control Solenoid Valve 'B' circuit poor electrical connection
    numerous sites claim the solenoid valve being bad is the most common cause.
     
    webby, Nov 19, 2019
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  3. Dennis Vega

    Dennis Vega Well-Known Member

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    2012 Civic LX - Obd2 gave me code P0966 (Pressure Control Solenoid B Valve Circuit Low). I replaced the part and it still has transmission problems. It jerks when I put it in reverse and drive. Doesn’t shift pass 3rd. And I had VSS, ABS lights on dash. Could it be some kind of sensor? Like TPS? Help!
     
    Dennis Vega, Dec 2, 2019 at 11:05 AM
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  4. Dennis Vega

    Dennis Vega Well-Known Member

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    So how
    How do I fix it
     
    Dennis Vega, Dec 2, 2019 at 11:10 AM
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  5. webby
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    is that the only code you have? I know I've helped someone else in the past where their car wouldn't shift past a certain gear no matter the rpm. I recall there were 2 solenoids that controlled the shifting between low/high gears on the trans.

    You could call and ask for Paul in parts
    1-855-299-7244
    https://www.collegehillshondaparts.com/

    He could probably rattle off the part number without even looking it up. I know on the 8th generations it was a very common part where they sold quite a few.
     
    webby, Dec 2, 2019 at 2:13 PM
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  6. Dennis Vega

    Dennis Vega Well-Known Member

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    Thanks . I already replaced with a new solenoid. A little better but not fixed. Still harsh shift in R and must rev rpms at least past 5000 for it to get going
     
    Dennis Vega, Dec 4, 2019 at 3:29 PM
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  7. webby
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    you replaced just 1 sensor correct? Part #? I'm saying there are multiple pressure sensors that tell the trans to up/downshift. Collegehills could probably rattle the part number off to you which I mentioned above.
     
    webby, Dec 4, 2019 at 3:44 PM
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