I really like my 2007 Prius, but the check engine light came on and with my code scanner I received the following 3 problems: C1256 Accumulator low pressure malfunction. C1300 Malfunction in engine control unit. P0301 Cylinder 1 misfire detected. Sound like I have serious problems. Any information and direction would be appreciated . Thanks H. Hampton.
Welcome to PriusChat!! Here is the workup for DTC C1256 : https://share.qclt.com/%E4%B8%B0%E7%94%B0%E6%99%AE%E7%91%9E%E6%96%AF%E5%8E%9F%E5%8E%82%E8%8B%B1%E6%96%87%E6%89%8B%E5%86%8Cpdf%E6%A0%BC%E5%BC%8F/Repair%20Manual/04pruisr/05/21avn/cic12565.pdf Here is the workup for DTC C1300 : https://share.qclt.com/%E4%B8%B0%E7%94%B0%E6%99%AE%E7%91%9E%E6%96%AF%E5%8E%9F%E5%8E%82%E8%8B%B1%E6%96%87%E6%89%8B%E5%86%8Cpdf%E6%A0%BC%E5%BC%8F/Repair%20Manual/04pruisr/05/21avn/cic1300.pdf Here is the workup for DTC P0301 : https://share.qclt.com/%E4%B8%B0%E7%94%B0%E6%99%AE%E7%91%9E%E6%96%AF%E5%8E%9F%E5%8E%82%E8%8B%B1%E6%96%87%E6%89%8B%E5%86%8Cpdf%E6%A0%BC%E5%BC%8F/Repair%20Manual/04pruisr/05/2054m/cip0300.pdf
ANY time you have codes which are seemingly unrelated that show up all together................ The prudent thing to do is first check the 12 V battery and it's connections.
Thanks for all the replies. I took my Prius to a shop that does Prius repair and their answer was that the anti skid brake unit was at fault. They quoted $2500 for the repair. My Blue Reader gave me the same (but more detailed) report of the same fault. I will not pay this for the repair. I will drive the Prius as is and see how many more miles I can get from it. Thanks again.
Well you had better drive it REAL carefully because now you probably do NOT have anti-lock brakes anymore. If you are lucky they will still function as standard brakes. I think you should find a big, empty paved space somewhere and do a HARD stop or two to see how it acts. Without ABS, it might throw you into a NASTY spin.
Actually, I have been driving without ABS for some time with no problems. But thanks for your help and reply.
What is the odometer reading? Your car has at least 2 problems. 1. The brake actuator needs to be replaced; consider installing a used unit which you can buy on eBay for ~$300 2. The engine has a misfire in cylinder 1. As previously stated, this might be due to a spark plug, spark igniter, or fuel injector. This potentially could be a relatively easy issue to resolve.
