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"It depends". Fuel trims are additive. (+10%) ST + (-5%) LT = +5% total. STFT will move around a bunch as you drive. It can vary a percent or...
So, a digital communication signal is what's known as a "square wave". The voltage on the circuit has only two values, a "high state" or a "low...
Hello and welcome yo PriusChat! That's quite the first post! So, most of the codes that you have are not "high priority" until you get the car...
Well... It's the ECM programming to make use of the different camshaft and compression ratio between the Prius and non Prius engines. The actual...
When the engineers test the powertrain, they figure out what is needed (fuel, ignition advance, etc) to achieve their goals (hp, emissions, mpg)....
You would have to talk to someone who does a lot of work on the Combination Meter. The ABS system takes readings from the wheel speed sensors and...
I would look at battery block voltage data from the battery ecu. Whichever one looks "wrong" will point you toward the problem circuit. Posted...
Option 1, use "hose pinch off" pliers to squeeze both hoses shut before you take them off the old pump. You only lose a cup or so of coolant that...
There is no subscription for the first vehicle brand you select. So if you buy the AP200 and set it up with Toyota, that's it. No more costs. If...
Deoxit .
FYI, Torque is very limited in what it can do (just "generic" ECM functions and some stuff from hybrid control and battery ecu's). I would...
Sorry, I don't live in Nashville. You would have to do research (google) to find a shop that would be able (and willing) to do that. Most places...
What kind of problems? What codes do you get? What systems can communicate with your scantool? .
<shrug> I've plugged in a used ECM on my 2006 and the VIN (as reported by a scantool) didn't change. Didn't have to do anything with security or...
Does the window "not go up" if you try the switch at the rear door as well as the driver's master switch? .
I would begin with getting a scantool that can view the HV battery ecu data, specifically the battery block voltages. For this one task, I find...
Does your mechanic have the capability to charge the HV (hybrid) battery? Very few shops can do that. I like to perform thorough diagnostics but...
Is the coolant level in the radiator full? (check when engine is cold) Do both radiator fans work? They should both turn on "low speed" (fairly...
The 2011 might have more potential problems than your Gen2 (or not). Both can have High Voltage battery problems, or brake actuator, or other...
https://priuschat.com/index.php?posts/3458304 It's usually the coolant valve. (Toyota issued a TSB that pretty much said: if you have P1121 then...
