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SRS code

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    I scanned my car for SRS light and was given code B1650 which says the most common repair is zero point calibration w/B1785 and B1786. It also says other associated ones are preform Occupant Classification System (OCS) initialization and Programmed Passenger Presence (PPS) sensor module w/B1785/B1786. I can't find anything online about these or what to do. I'm sure I can replace the PPS sensor but idk about the zero point calibration or OCS. Any tips or advice?
    amire24 wrote:
    I scanned my car for SRS light and was given code B1650 which says the most common repair is zero point calibration w/B1785 and B1786. It also says other associated ones are preform Occupant Classification System (OCS) initialization and Programmed Passenger Presence (PPS) sensor module w/B1785/B1786. I can't find anything online about these or what to do. I'm sure I can replace the PPS sensor but idk about the zero point calibration or OCS. Any tips or advice?


    hey, I think the zero point calibration might require the toyota techstream software to reset that, if it doesn't do it on its own. Should do that by itself. Just replace the bad part, reset the computer by either using your obd2 scanner or disconnect the negative battery cable, wait like 5-10 minutes, reconnect.

    I did look up the code and it points at the passenger seat wiring/sensor. And yeah if it was in water, then it could've caused that to be damaged.

    Here's what I found are the possible causes..

    B1650 TOYOTA Possible Causes

    Faulty Occupant Classification System
    Faulty Airbags Sensor Assembly Center
    Faulty Right Front Seat Wire

    Sorry for the late reply.. hope my advice helps ya.
    sciontc_mich wrote:
    amire24 wrote:
    I scanned my car for SRS light and was given code B1650 which says the most common repair is zero point calibration w/B1785 and B1786. It also says other associated ones are preform Occupant Classification System (OCS) initialization and Programmed Passenger Presence (PPS) sensor module w/B1785/B1786. I can't find anything online about these or what to do. I'm sure I can replace the PPS sensor but idk about the zero point calibration or OCS. Any tips or advice?


    hey, I think the zero point calibration might require the toyota techstream software to reset that, if it doesn't do it on its own. Should do that by itself. Just replace the bad part, reset the computer by either using your obd2 scanner or disconnect the negative battery cable, wait like 5-10 minutes, reconnect.

    I did look up the code and it points at the passenger seat wiring/sensor. And yeah if it was in water, then it could've caused that to be damaged.

    Here's what I found are the possible causes..

    B1650 TOYOTA Possible Causes

    Faulty Occupant Classification System
    Faulty Airbags Sensor Assembly Center
    Faulty Right Front Seat Wire

    Sorry for the late reply.. hope my advice helps ya.


    Thanks for the reply. I'm going to change the Passenger Seat Occupant Detector Detection Sensor and the seat wires and see what happens from there. I'm hoping that's it because I'm not sure what else it could be. Isn't it odd that I'm changing the front passenger parts and not the driver side when they were both under water?
    amire24 wrote:
    Thanks for the reply. I'm going to change the Passenger Seat Occupant Detector Detection Sensor and the seat wires and see what happens from there. I'm hoping that's it because I'm not sure what else it could be. Isn't it odd that I'm changing the front passenger parts and not the driver side when they were both under water?


    yeah it is odd, I agree. The entire area was under water and it's ONLY the passenger sensor that is bad?!?!! hmm.. who knows, maybe you got lucky! You're welcome for the reply, no problem. What did you find? I've been busy not on the forums lately, let me know what ya found.
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