Help with 01 diagnosis, please!

• C240 - ?
• C1215 - Anti-lock brake, linear solenoid positive voltage malfunction
• C1241 - Anti-lock brake, IG power source circuit
• C1259 - Anti-lock brake, malfunction in HV ECU

The 12 V battery is now good?

Call these folks:

Auto-Careers.org: Hybrid Training Resources Since 2000

Bob Wilson

 

Good deal. A lot of strange errors are fixed by having a good 12 V battery.

Now all of the codes I could find point to the brake system. The only time I get codes there are when I used my Auto Enginuity or ScanGauge in "discovery mode" and they attempt to use a CANbus protocol. One of the CANbus lines in our NHW11 is also used for a 'jumper' Tc/Ts method to flash error codes. When a scanner uses the CANbus line, it 'spikes' the controller and usually induces a lot of false, brake codes. Happily, these brake codes go away once the car is restarted.

Where is the car now?

Do you have a scanner that is ISO-9141, KWP2000 compatible?

You might want to read both the Auto Enginuity sticky and ScanGauge threads to see what the group has done to prevent these false codes. Once you have access to accurate diagnostic codes, the car will lead you to problem.

Bob Wilson

 

IIRC, this is a code that will inevitably be set in the brake ECU whenever anything the slightest bit funky has been signaled by the HV ECU (even, say, a tranistory slow engine start) and then remains set until somebody clears it. So it's not a terribly uncommon code, nor terribly informative.

-Chap

 

What happens if you drive the car? (Assuming it can still drive). Do you get any warning light? How about the error codes. Any P3XXX codes at all?

 

Can you be more descriptive ??

 

If you haven't read my article over on EV-Talk about expensive hybrid repairs, might be worth a read as to what goes on in these dealerhips:

Ridiculously Expensive Hybrid Repairs! | evtalk

 

Almost every sentence in that "article" is riddled with errors, myths, and misconceptions.

 

In order to help you we'd need to know exactly what happens after you have reset all codes, have the 12V battery fully charged, and turn on the car. Does it start at all? Is everything fine until you put it in gear and it codes almost immediately (i.e. transaxle)? What new codes come up? Even though it is brand new, unless the 12V has been on a battery charger, it could be dead already, and there will be no end to your problems.

 

No, I'm not a dealer. I don't work for one, either.

Frankly, it doesn't take inside knowledge to recognize that the article is BS. It just takes logic.

 

Unfortunately, you weren't clearing anything up. You were just working around the issue to turn off the warning lights. They are there to alert you to problems with your vehicle. Ignore them at your peril.

There is no C240; you are missing a digit. My guess is that you got the codes from the brake ECU alone, and that there are codes in the HV ECU, as well. The first step would be to scan all modules for trouble codes and information codes, and to record the freeze frames associated with such codes.

If you clear codes before doing this, you will lose valuable data.

Once you have the codes and data, you can find factory service information at http://techinfo.toyota.com

Why is the vehicle "undrivable", as you say, at this point?

 

I posted because someone came to this forum looking for help, and was supplied with misinformation. The post was short so as not to drag the thread off topic. You might want to keep that in mind.

Since you have done so, even though the article had already been linked, I will hazard a guess that you are defending the article, and wish to promote it. If so, why don't you start a new thread on the subject?

That way, you will have room to give your views on the article, at length.

If you're willing to invest the time to do that, I'll be happy to do the same.