ABS ECU Malfunction-Dealer wants 3300.00 to replace??

I think if you wrote them an email explaining the windshield tint strip being the cause of water getting into your ECU in the dash, he would understand how that can happen.

His denial was because the battery ran low and all this happened. I would probably deny that too. The other scenario would make more sense.

 

89540-47100 might be better than 89540-47080

 

So far, no one has seen any water damage anywhere. Those connectors can be kicked by your foot. Maybe the problem should be found before the finger pointing continues.

 

True

 

Toyota Parts - Camelback Toyota Parts - Genuine OEM Parts - Free Shipping

 

Avi said that......just so you don't jump to blaming water

 

The part number changed as time went by. 47130 is the latest, before that it was 47100, and originally it was 47080. The later ones have been updated somehow. The service writer might not keep track of part numbers. Think of them as a salesman specializing in selling you repairs and service. All they need to know is how to sell. They get the okay from you and tell the repair team too go ahead. The technician who does the repair tells the parts department to order the part.

 

A Google Search of 'Prius 2004 skid control ECU' brought out part #'s 89540-47060 and 89540-47080.

Wrong parts, or interchangeable ?

One offer on Fleabay said "ECU with buzzer!" It reminded me of one of the intermittent noises OP mentioned.
Prices seem to run between $50 and $75.

Is it a difficult install ?

 

I don't either. I suggest you go and visit your car when the skid control ECU has been exposed so that you can see its location and it will be clear that its connections will not be accidentally disturbed by your foot or any other body part.

I agree that at this point water damage is only a theory, not an established fact, so you are just trying to see whether cleaning the ECU wiring harness connections helps. It is not going to hurt.

 

Well the Prius is so reliable many of the parts are not needed in the used marketplace. No demand means low prices.

Just a few years ago, you can get a hv battery pack on ebay for about $500 or less. Now that price has more than double.

 

I don't think counterfeit is a concern. The list price is $1300 or so, the used price reflects supply and demand. Most times a Prius reaches the junker a skid_ECU is pulled but there have been very, very few failures. You might be able to count the total on your thumbs.

I suggest focusing on

1. Getting the right part number. Sometimes Toyota puts out an 'improved' part that is back compatible with earlier years, and sometimes you have to stick with the part# that came in your car. Personally I would be happy with the original part# if it was cheap since it has proven so reliable.
2. Learn how to install the part yourself, or find a shop that is inexpensive.Here is a diagram of where to look for the part in the car. It looks like it *might* be accessible with some simple lower dash disassembly but I do not have an '04 to be sure. If you take it upon yourself to swap, do be sure to disconnect the 12v battery first.

 

I don't understand if $500 includes what you already owe. I hope so, in a sense, since $500 for one hour of labor is ridiculous.

For that matter, why do you have such a high bill already ?