P0335 crank sensor error with C1259 P3100 P3120 solved

Discussion in 'Generation 1 Prius Discussion' started by Q*bertZ, Feb 26, 2021.

  1. Q*bertZ

    Q*bertZ Junior Member

    Joined:
    Oct 22, 2019
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    Location:
    greenville south Carolina
    Vehicle:
    2002 Prius
    Model:
    N/A
    While driving one of our twelve Prius', the car was missing and not charging the HV battery. The battery of course quickly discharged. I turned the car off and erased the codes; the next time it 3/4 charged the HV battery but had no power for 10 miles.I turned the car off and erased the codes. I then drove it some more until it wouldn't go anymore, maybe 4 miles. Tried the same thing. It then only half charged the HV battery. Drove another 4 miles. The third time the car would just start and turn off(went from ready mode to no "ready" on the dash) . I decided the easiest thing to check was the crank position sensor (behind front right tire, lowest part of engine) . I pulled on the wire and it came unplugged with no effort. 20210226_085325.jpg
    It was also full of oil and there was oil on the connector and the engine below the connector. I emptied the oil and plugged the wire back in, started the car and drove home. Some of those error codes mention a bad MG2 in the transmission. Car is running better than ever.

    I guess...always check the crank sensor first.

    After being cleaned with electrical spray and re-taped. Also, this is the way you are supposed to release the clip on the crank sensor. Slide the white plastic piece.
    20210226_090118.jpg
     
    Nelsonprius and WHCSC like this.
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