MarkATH10W

to be precise. is there any reported issue with the 2AZ-FXE?

I did a bit of research: 1) Entire battery pack: can be bought, with high capacity options thats moves away nimh from overseas. hybrid experienced shop should be able to replace one of these without issue. 2) cell by cell repair: really requires a specialist. looks at voltage of each cell and replaces cells as necessary. ATH10w cells match gen 1 prius cells, and also gen 1 estima hybrid cells. Look to cab companies. THey may have developed this know how in house. Our cab companies use prius vehicles.... replace battery packs 200-300thousand km driven if i recall correctly. Engines at around 4-500k km.

Interesting. I thought that alcohols allowed for higher compression, without actually increasing the octane rating.

Regarding engine braking; yes I used that in the past. I did not know about engine braking issue until literally this week. breakdown occurred last summer, and finally diagnosed a week ago. Engine oil was fresh full synthetic with new denso filter. Notable observations at time of import: visible valves under the oil cap showed darkened / hardened build up; I have never seen this in any of my other previous toyota's (all 5-6 of them), which were generally remarkably clean. one of the valve cover bolts was different in appearance; is that standard? or evidence of previous repair work? fresh off the boat, the vehicle stuttered due to an extremely dirty MAF sensor. problems went away engine seemed "loud", unrecognizable sounds that I attributed to hybrid system when vehicle was apparent. only occured sometimes.

Engine oil was fresh full synthetic with new denso filter. Notable observations at time of import: visible valves under the oil cap showed darkened / hardened build up; I have never seen this in any of my other previous toyota's (all 5-6 of them), which were generally remarkably clean. one of the valve cover bolts was different in apperance; is that standard? or evidence of previous repair work? fresh off the boat, the vehicle stuttered due to an extremely dirty MAF sensor. problems went away engine seemed to make unrecognizable sounds that I attributed to hybrid system when vehicle was idling? only occured sometimes.

Follow up. My engine is blown. metal shards in oil. game over.

If you read my threads, I suffered an engine failure and no start. Japanese mechanic found evidence of blown engine. This occurred up a steep incline @ highway speeds while stressing the engine. Good luck. I roughly had my vehicle for 2 months. It is now being shipped off to the wreckers with approx 110 thousand km. I will not be buying another ATH10W; nothing to support their repairs in north america.

old thread, but just wanted to point out that the original OEM is an AGM battery as well. Its completely sealed which is what i consider the main benefit as our batteries are inside the cabin. I've seen a lot of regular unsealed batteries leak,vent, etc...

Picasso, thank you for your reply. Appologies, no offense intended. I appreciate any help/sourcing/info that you provide. The documentation I have states that my vehicle identification is ATH10-0003548. Is that the number you are looking for? The vehicle is at the mechanics currently. I am awaiting battery diagnostics/reconditioning. I am trying to source cells in event that I have bad cells. So far, these are my leads: 1) I have heard that gen 1 prius cells may be compatable with our ATH10 Alphard hybrids; I have not cross referenced the Part numbers yet. 2) I may be able to buy a complete gen 1 rebuilt AHR10 estima hybrid battery pack; I do not know if this unit is useful, again I have not been able to cross reference any part numbers yet. I am open to any suggestions for any solutions that you provide. Cheers, Mark

0003548 Why do you ask?

If theres a scenario where we need to replace individual cells rather than an entire battery for the sake of cost savings, I've heard Gen1 Prius has hybrid battery cells. Im wondering if the Estima Hybrid has compatiable battery cells as well. Has anyone already performed such homework?

Thank you for the Replies. Were you able to pull any specific codes that hinted at what part of the hybrid system was failing? In my case, I don't get any dash lights. My ready light is on. Cheers, Mark

Our Alphard Hybrids have a belt based transmission, unlike 99% of the other toyotas which use a planetary gearbox. Perhaps the nissan mechanic can help you, as their CVT transmissions are notoriously bad...

Thank you. I need more information. I just purchased a "washinglee" brand ODB2 lead to work with tech stream Verion 14.30.023 PaulE shows that it can grab full codes about the hybrid battery system in this thread here:

That sounds super sketchy. Is it charging the battery the whole time as you descend to the bottom of the tunnel? What is the battery level according to the display on your the hybrid information system on your display? I wonder if it is cutting out to prevent overcharge; something to do with that?

Can you tell me which version of techstream you use? It is good news that you found a version of techstream that has full readings for the Alphard hybrid. It might be visible under the menu: Help > About *EDIT* I see that you are using version Ver 14.30.023 - 21084 from your screenshots. I am going to purchase the same washinglee lead. Cheers, Mark

thank you for your reply. i forwarded the same question to the mechanic, as P3000 is very generic. I can't justify replacing the entire battery without some more information if it doesn't actually fix it. I found these posts informative: https://www.torquenews.com/8113/toyota-prius-p3000-check-replacing-your-hv-battery https://uk.alphardclub.com/forums/topic/3383-hybrid-battery-condition-application/#comment-14043

Any ODB2 reader error codes you can share? Any mechanics you can recommend on the island or in BC? Cheers, Mark

Thank you for your reply: I am getting ready for the scenarios, if it can be properly diagnosed. 1) dead battery: (will techstream seems to be be able to see dead banks/cells of batteries according to threads in this forum? Dr prius app is not compatible according to threads in this forum). options: a) replacement from 3rd party battery manfuactoring is likely the way to go. b) cell level diagnosis and repair from specialty hybrid shop c) parts pull from japan... not going this route unless im desperate d) new battery from japan: $$$$$$ 2) dead inverter: a) purchase used from japan https://autoparts.beforward.jp/detail/Cooling-Components/Other-A-C-Parts/PA83949062/

Vehicle broke down on the side of the road a month ago without any engine management lights. Now it won't start. Dash lights looks OK, and ready light is on, but won't turn over. 2 shops have looked at the vehicle and they can't tell me what is wrong; auxiliary battery replaced. Im not sure that they are equipped to make precise diagnosis of the hybrid systems. They state that a P3000 code is coming up now. 1) Have any of you experienced the same issue? Where the ready light is on, but it appears that the vehicle won't attempt to start? 2) Beyond ODBII, is there a hybrid specific computer that needs to be scanned and read? 3) Im looking for some help as to what I should be looking at for a diagnosis? Cheers, Mark

Hi all. Hoping to find some answers? What are the symptoms of a total inverter failure? (will the vehicle start / run?) What are the related codes on the ODBII? Will replacing the inverter fix the problem? or is system complex and has many points of failure outside of the inverter box? Cheers, Mark

Gavins, my shuddering issue was caused by a extremely dirty MAF sensor. problem prevalent especially in hilly situations. CEL would turn on most times though. I thought it might have been a bad CVT, and did a drain and fill of the fluid. ANSEL JP700 code reader gave fuel system related warning (i have a long post on this forum). replaced MAF and issue went away.

Hi all, my van broke down on a freeway going up hill at high speed and under load and now won't start. Looking for help as to what the issue could be if you have had similar experiences. Over a 10 second period the following happened: -going up major hill at high speed, i felt a slight loss of power - I let off the gas pedal and re-engaged... no power response and engine mechanical sounds got much louder, then sound of a belt squeal, then a clunk that i felt in the drivetrain - car engine stops, but continues rolling and hybrid electric system is active and tries to compensate. Power steering is still on, brakes still work. - I pull over. Car wont start. I notice that my electrical system is wonky, I can't power slide the door shut, mirrors, etc. I believe my auxiliary battery is low. Hazard lights work for a while. - prior to the breakdown, no issues with the vehicle, no Check Engine Light, no warning lights that I can think of. Key Points: After the breakdown, my immediate thought is that my engine seized. After being towed, all fluids good, no belts that I can see have snapped. The nearly dead auxiliary battery is suspicious. Can this be related? Boosting the vehicle has no effect; the ready light flashes and stays flashing. I believe I can hear the vehicle attempting to start, but it sounds very weak I have no time to fully charge the aux battery. Vehicle was towed to a nearby random mechanic in a small town while I took my kids home, several hundred kilometers away. Looking for some expertise or experience regarding such issues?

All. Thanks for your responses. To clean/replace Do the sensors pop out from the front? If not, can i reach from behind without taking plastic bumper cover off? or does it require disassembly? Cheers, Mark