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Note that the Combination Meter sits directly under the windshield in the top of the dash. The temperature in that location can get a *lot* hotter...
I was not aware of this separate thread about the Combination Meter problem, so I posted my dealing with how to get the CM repaired in the last...
OK, in order to find out what has the most impact on the operation of the 5V regulator IC1 (TLE4278) and to verify my suspicion of the input...
Interesting! Though I don't agree with a couple things said there and I have an idea of my own that would better explain what is under the black...
It appears that the simple fix (add a larger time constant capacitor on the watchdog) is not a perfect solution, or the value may not be perfect...
Exactly - that is my main reason to dig in and share, I recognised that people (like my friend) are beyond the warranty for the Combination Meter,...
Here is another picture of a second Combination Meter that I fixed. It used to fail about once every 5th time starting and after adding the 100nF...
Patrick, I added the picture to the original post, as to have everything in one place. You see the blue 104 (=100,000pF = 100nF) capacitor...
[ATTACH] Friend of me has this problem on her 2005 or 2006, I forget. So, I bought a failing combination meter on Ebay cheap and looked at the...
Hi Gary, I read a post from you about your 2005 that had valve noise back in 2012. Did you ever work on that issue or what happened? I am looking...
Schley 66750B starts at $33 incl shipping on Ebay. It specifically says for shielded Oxygen sensors as found on Toyota starting year 2003. I may...
Hi Scott, Since you charged all modules in parallel and do not know the capacity, it is hard to point to modules that should be paired, so my...
Hi Scotman, It looks like the charger you use knows, since you reported earlier that it charged the modules to 8.8V, which is just over the 1.45V...
Hi Scotman, Please call me Cor. You can discharge the entire pack in parallel to get a quick-and-easy guesstimate of the average capacity by...
Hi Scotman, Capacity can be checked using a discharge-charge cycle. In essence, you discharge until the module is empty and then you charge it to...
