Ema - Red Triangle, No Gas Engine, No Codes Thrown?

Ed,

Actually all 3 water pumps now have about 2,000 miles on them. I changed them when I replaced all the suspension components and got new tires about 2,000 miles ago. I change them every 200K regardless if they have failed as PM. Also do ATF every 50K which is why Ema is in such good shape. Trying to hit 400K then 500K on original parts but we will see what the codes are when I get back to Carolina.

Chris

Patrick,

Thanks again for all of your help. I carry a Fluke87 for work so have a multimeter and know how to use. I really don't think it is the battery itself unless it had some sort of catastrophic failure just now. I haven't seen any of the rapid high-low discharges that most failures see and haven't gotten any other intermittent codes. I even purchased and had installed a grid charger and have "re-balanced" the battery a couple of times with it. Even did the discharge and recharge cycle and it actually seemed to help as I posted in that thread awhile back.

I am thinking along the lines you are now with DC/DC converter, hybrid relay, an ECU maybe or something along those lines. Hard to say without codes. I can't remember if the CEL is on or not? I will certainly post back when I get home and can pull the codes.

Thanks again!!!
Chris

 

Ed,

The post is a little ambiguous but Patrick is correct I changed them at 200K and then again at 394K.

Actually the first time at 200K I forgot the water pump and it failed at 206K and I had to limp to the dealer with a bunch of stops to keep her from overheating. The scangauge worked great to monitor engine temp there. My Toyota advisor and I vowed not to let that happen again so we changed all 3 pumps at 394K even though all were still functioning properly at the time.

Chris

 

200K out of the pumps not once but twice. Like I said Ema has been a GREAT car which is why I am so bummned about her current condition. Not only was I excited about hitting 400K but my old advisor who is now the service manager at my Toyota shop was as was my new advisor. Both of the routinely tell me the tell other customers about Ema. I'm sure trying to sell the importance of routine maintenance and upsell things because I go there pretty much for everything but still its nice to hear.

Chris

 

Well, I really wish I could be posting DTC's for everyone to troubleshoot but when I returned home last night the compact software CD for the Mini is cracked in half. No software no DTC's

Chris

 

Ema LIVES!!!!!!

Patrick - Thanks for the link. I actually found it at download.com or somewhere I think. It took a little time to get it setup correctly and communicating but I finally did. These are the codes that were logged: P0AA6 with detail code#2 of 526, detail code#3 of 612, C0210 and B1411/B1412.

The P0AA6 is the old high voltage isolation fault, C0210 is ABS/VSC/Trac and the last ones are A/C.

I cleared the codes and Ema came up and starts just fine. I haven't taken her for a test ride yet but will here in a little bit. The only code still listed on the Health Check is B1412 but no lights or errors are shown on the dash or on the MFD. I think she is ok but will certainly let you know after I drive her.

My working theory on this is the grid charger plug even though it is plugged and water resistant isn't waterproof and fell off the frame and into my spare tire area which I can get water into at times especially after hard rains. When I stopped quickly for the herd of deer water got into the plug and caused a short generating the fault. The plug was damp when I took everything apart but I didn't think anything of it at the time.

You can be sure there is a sticky back and wire tie going on the frame up near the battery on a level spot so there is no chance of that ever happening again!!!!! Nice to have the mini-vci to troubleshoot if it does however.

As for the B1412 code, I couldn't find anything on it with a quick search and my AC is working fine so I am not to worried about it. Might ask my Toyota guy about it next time I am in but again not really concerned about it.

THANKS AGAIN!!!!! I really appreciate everyone's help and ideas on this one. This forum is great for the moderate DIYer's like myself.

Happy driving,
Chris

 

Patrick,

I've said it before but it is worth repeating over and over and over. PriusChat is LUCKY to have someone of your knowledge and expertise as member and posting to this site. I really appreciate all the fantastic direction and information you provide and I know I am not the only one. If there is ever anything I can do for you just let me know. If I am ever in your area on business I would be happy to take you and your family to the restaurant of your choice my treat!!!!!

Thanks again!!!!

Chris

The plug may have still been damp on the inside when I disconnected the battery the first time. Ema has been sitting in my heated garage all week which I am sure has given anything that was wet time to dry further. If I had disconnected the battery today the codes may have cleared but who knows. I am just glad I got them cleared and she seems to be ok.

Chris

 

Everyone,

I just wanted to make a final post to this thread to let everyone know I have driven Ema almost 700 miles now since clearing the codes and she has behaved normally. My MPG's are down a little but I think that is a combination of clearing all the old data, cold weather and the new Michelin Defenders that were just put on her.

THANKS AGAIN!!!!!!! Especially to you Patrick.

Best Regards,
Chris