How do you reset ABS light & yellow ((!)) with Mini VCI and techstream

Yup, that's all it takes, if you know you did nothing to get air in and the system's just forcing a bleed because it thinks you could have. Glad to hear it's all sorted.

-Chap

 

Good to hear that their overhead payments will have to come from somewhere else.

Glad it worked out .

 

Since this is the holiday season, perhaps you could give Avi a "thank you" gift for his generosity.

Just a thought.

 

Oh yes. Im headed to vegas now. Next weekend im back. Wasnt there for a week and voila my neighbor told me i have squatters in my property. They stole all kitchen appliances. Life goes on.

 

That's pretty hard to take without someone noticing. It's not like small stuff

 

They came with a pick up. Nothing stopped them. Well coordinated. Middle of the day. 4pm first try. 6pm all done.

 

I did a zero point calibration today using nothing but a paperclip. Sorry, but you do not need techstream to perform this procedure.
After doing so, I also performed an Initialization of the Linear Solenoid Valve offset. I believe this was a required procedure for the Brake Pump Actuator in the 2nd gen. Also did this with a paperclip.
I could not find these procedures here so I researched else where for other Toyota procedures and sure enough found how to do this with some minor modifications of the sequence.

 

For anybody looking for the details, the procedures that can be done with jumper wires are covered in the repair manual; Toyota's not keeping them secret or anything. It's just that so few people think to look there.

-Chap

 

As I read through several threads looking for a direction to the issue I am having with one of my Prius, I continue to get more frustrated with DEAD ends. Only two of several multi-page threads have an ending result. This is one of the DEAD ends as "pkwhisker" never followed up after the trip the the dealership.
TomK

 

what's your issue? 2008 cars are easy, no dead ends on them

 

I have that same attitude with the GEN2 as to why I have several. My daughters car 2008, showing me the C1241, C0200, and C0205 codes on my Techstream. Car seems like nothing is wrong except about every week it throws the triangle, red car exclamation, yellow exclamation and VSC lights. She also said the HV fan came on high the other day. All HV modules were very consistent (on Techstream) and recharge bars she said was normal. REally can't find much on the C1241 code except most times it is the 12 volt battery. I replaced it with a known good charged one from my car. Car read it as 12.0 volts, then drops to 11.6 both with car off. Has been about the same with 2 different batteries. My car had no issues with the 12 volt. I doubt there is any issue with both front wheel speed sensors at the same time. So I got on here and started searching.
TomK

 

Try to do a couple force charges on it and see if it helps. If there is a weak module, it'll fix the problem temporarily. At least you'll know it's the battery (strange there is no code for it though).

To do a force charge, get the HV battery to about 2 bars (park with the AC running), then put the car in drive while holding/pushing down on the brake and press the accelerator all the way down. Wait until the battery is fully charged. You can repeat this a couple times and see if the problem goes away for more than a week (if that is the timeline it comes back)

 

I have done force charges several times as I always have a Prius sitting for months. I could try it but I really doubt it is a HV module issue. That always comes up as the P0A80 when it has happened in the past. Thanks for the suggestion however JC!
TomK

 

Also easy enough to swap the battery with a sitting Prius, see if the problem goes to the other car.

 

I could if I can't figure out why the C1241 and front ABS wheel sensors are coming on. If it is an HV battery module it would be giving me the code leading to that not an braking code I would think. All active reads on the modules were 15.7X across the pack.
TomK

 

Well if this were my car, I would definitely address the 12v issue first. There is no reason a good battery would drop to 11.6v while off. That just means that battery is very marginal and probably pretty old.

Unless it's really hot in MN, the rear battery fan should not come on unless your daughter does a lot of stop and go driving (like start the car 10 times throughout the day). This would lead to a dirty fan, or bad weak HV modules.

 

Where are you looking that you can't find much? Of course the most complete source is the repair manual, but we have lots of places C1241 has been discussed as a report of low voltage arriving at the brake system, sometimes because of the 12 volt battery, but other times because of wiring or connector issues on the path from the battery to the brakes. One place that's mentioned in on the blink-codes how-to page.

Toyota Service Information and Where To Find It | PriusChat
Blink (a/k/a Flash) Codes – How to. | PriusChat

You mention having Techstream. If you can pull up a freeze frame from the C1241 code, it should have one of four INF codes (81, 82, 83, or 84) that further pin down what voltage issue was being reported, and the freeze frame will also show various voltages around the brake system at the time the code was set.

If you include that information in a post here, then people can help figure out what the problem is in your car. That's usually a more direct way to a solution than trying to mine a bunch of old threads for what the problem turned out to be in somebody else's different car at some different time.

 

I will hook up Techstream again and see if I can get the sub codes for the C1241. There wasn't a snowflake. Will check out the freeze frame and see if anything is there. Have never heard of "blink-codes" before so not sure what that is except the old school way of reading the computers. Will also check into the 12 volt again as I also thought 11.6 volt under load was slightly low but the battery never gave me any indications in my car. Thanks as I have some more checking to do.
TomK