How do you calibrate? - Toyota Nation Forum : Toyota Car and Truck Forums
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#1 Old 11-05-2009, 12:39 PM
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How do you calibrate?

I've seen several references to calibration after a dead battery. One referred to a "how to" in this forum and another talked about the performance mode.

I've searched for "calibrate" and "calibration" but haven't found a procedure.

Can anyone tell me where I can find it?

Thanks in advance,

Howard
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#2 Old 11-05-2009, 03:35 PM
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When you ask about recalibrating, what are you referring to? Nav system? Main ECU?

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#3 Old 11-05-2009, 04:12 PM
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I'm not sure but I'm guessing the ECU since it apparently effects performance and efficiency -- or at least the calculation of efficiency. Here is the search link where I first ran across it. In particular, the 3rd thread down.

New (to me) '06 Highlander Hybrid Limited, 2 questions...

It refers to a calibration found elsewhere on the forum but I haven't been able to find anything. Apparently something that happens when the battery is completely dead. When we bought this car the dealership had it out front with an electronic sign on it and had forgotten to take it off and it drained the car's battery.
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#4 Old 11-05-2009, 06:06 PM
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As I understand it the ECU will automatically "relearn" your shift points, etc., whenever power is lost and the battery reconnected. The driver doesn't need to do anything as the computer does it for you. Literature on this is extremely scarce, but a call to your local Toyota service center can probably provide additional information.

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#5 Old 05-09-2010, 12:41 AM
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The following systems need to be reset/recalibrated after the battery dies, drops too low or is disconected:

Compass in rearview mirror
idle speed control
Power windows
Sunroof
Sealt belt buzzer supression
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#6 Old 05-09-2010, 01:08 AM
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The ECU will recalibrate on it's own after a couple tanks full of gas.
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