Gregster Posted May 22, 2023 Posted May 22, 2023 Hi Guys, I have a problem hopefully something which can be resolved fast and easy. 2005 Toyota Alphard Hybrid It starts and than you can drive about 200 m and than stopes.Than you wait start again same thing happens. Than I started and waited, the engine was running and charged up the hybrid battery to the 3 green bars and stopped again. I have an iSoft reader which is not the most advance but gave me some codes: -C1213 HV SYSTEM COMMUNICATION CIRCUIT -P3002 HV SERIAL COMMUNICATION -P1636 HV ECU MALFUNCTION So what do you guys think? What can be done?
Goldstar Posted May 22, 2023 Posted May 22, 2023 I did read of someone recently disconnecting the standard battery and it cleared a fault code which helped driving for longer to get home (but not necessarily solving the reason why it’s started)
Jeza Posted May 22, 2023 Posted May 22, 2023 What warning lights were on when it shut down? Mine was similar but different codes and related to the HV battery one cell weak, I think P3000 is the generic code for this. Comms is lost with the brake ECU so no regenerative brake function or stability control.
Frazzybell Posted June 7, 2023 Posted June 7, 2023 The issue you are most likely having is some of the cells within the HV battery becoming much weaker and having less capacity as the others. They are all connected in series like a chain, and therefore only as strong as it's weakest link. When put under load the whole pack voltage will drop and the weaker cells will drop quicker. Due to this the overall voltage of the pack drops too low and the sensor wire on each of the 2 cells ( 15 blocks ) detects this. Resetting via the 12V battery taken off for 5 mins will help get the car started again but when the closes circuit voltage is to low the inverter will not take the HVDC and convert to 3P AC to power the motor.
Geralt Posted June 18, 2023 Posted June 18, 2023 On 5/22/2023 at 12:46 PM, Gregster said: P3002 HV SERIAL COMMUNICATION This means the CAN bus connection is interrupted. This is a pair of wires forming the serial communication medium. Check connectors for tightness and corrosion on the pins. I very much doubt this code would occur due to faulty battery cells.
Gregster Posted June 18, 2023 Author Posted June 18, 2023 2 hours ago, Geralt said: This means the CAN bus connection is interrupted. This is a pair of wires forming the serial communication medium. Check connectors for tightness and corrosion on the pins. I very much doubt this code would occur due to faulty battery cells. Thank you for the advice, The things I already tried... I am stressed out...how can a car which is well-designed and runs practically nothing create so much *********** it is beyond me... I have also worked out that the tyres were on the wrong pressure and that is giving an error message because of the levelling sensor when I put the pressure right the car started and worked until it happened again. I mean the ****, key in key out start not start and when it starts then it drives but I cannot have an unreliable car for us.
Rojie Posted June 18, 2023 Posted June 18, 2023 1 hour ago, Gregster said: Thank you for the advice, The things I already tried... I am stressed out...how can a car which is well-designed and runs practically nothing create so much *********** it is beyond me... I have also worked out that the tyres were on the wrong pressure and that is giving an error message because of the levelling sensor when I put the pressure right the car started and worked until it happened again. I mean the ****, key in key out start not start and when it starts then it drives but I cannot have an unreliable car for us. Hello Greg, Please moderate the language you use.
Rojie Posted June 18, 2023 Posted June 18, 2023 Greg, I have changed your vehicle to the hybrid version. There is a section on the Forum for Servicing and Repairs. I have not checked it for you; but you may find, in that section, a garage near you that may be able to help you You may also wish to search the Forum for hybrid specialists, although it may not be a problem associated with the hybrid system. I understand that being without a (reliable) vehicle is stressful. The best advice I can give you is to be patient, for a day or two, to allow members to read your post, and, hopefully, make some helpful suggestions. I am not a Hybrid owner so cannot directly help you myself, otherwise I would.
Gregster Posted June 19, 2023 Author Posted June 19, 2023 10 hours ago, Rojie said: Greg, I have changed your vehicle to the hybrid version. There is a section on the Forum for Servicing and Repairs. I have not checked it for you; but you may find, in that section, a garage near you that may be able to help you You may also wish to search the Forum for hybrid specialists, although it may not be a problem associated with the hybrid system. I understand that being without a (reliable) vehicle is stressful. The best advice I can give you is to be patient, for a day or two, to allow members to read your post, and, hopefully, make some helpful suggestions. I am not a Hybrid owner so cannot directly help you myself, otherwise I would. Thank you! I am broken-hearted my son is more so. I cannot exist without a car, as a single parent it is even harder I can assure you. Work and basics for my son, such as school runs and shopping and all was depending and relied on this car. We has wonderful times and trips when it was working but now it is nothing but stress. I talked to all local garages including Toyota, nobody is willing to take it. The only hybrid specialist gave us 7 week waiting period just to look at it and see what can be done. So there is pressure and hardship, and there is this. Apart from all thank you and that is coming from heart.
Rojie Posted June 19, 2023 Posted June 19, 2023 1 hour ago, Gregster said: Thank you! I am broken-hearted my son is more so. I cannot exist without a car, as a single parent it is even harder I can assure you. Work and basics for my son, such as school runs and shopping and all was depending and relied on this car. We has wonderful times and trips when it was working but now it is nothing but stress. I talked to all local garages including Toyota, nobody is willing to take it. The only hybrid specialist gave us 7 week waiting period just to look at it and see what can be done. So there is pressure and hardship, and there is this. Apart from all thank you and that is coming from heart. Give Abbey Motorsport in Oxted, Surrey a call. Quite near you They are recommended by a member; albeit not a hybrid owner.
Gregster Posted June 28, 2023 Author Posted June 28, 2023 On 6/19/2023 at 9:11 AM, Rojie said: Give Abbey Motorsport in Oxted, Surrey a call. Quite near you They are recommended by a member; albeit not a hybrid owner. Thank you!
Gregster Posted June 28, 2023 Author Posted June 28, 2023 On 6/18/2023 at 5:50 PM, Geralt said: This means the CAN bus connection is interrupted. This is a pair of wires forming the serial communication medium. Check connectors for tightness and corrosion on the pins. I very much doubt this code would occur due to faulty battery cells. Thank you! So far we found all connections nice and clear. Very frustrating ...
PaulE Posted June 29, 2023 Posted June 29, 2023 Try Mark at Hybrid Repair Services- He is a very knowledgeable and helpful, he fixed my Hybrid recently. I am sure he would at least give you advice. Contact | Hybrid Repair Sevice | Mobile Hybrid Battery Repair (hybridrepairservice.co.uk)
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