Anybody has a fix for this code B1413. Without tearing the dash apart to get at the condenser sensor. Like splicing a resistor into the ECU to bypass the sensor. Or something else that might repair it easier. Any ideas would be greatly appreciated. Thanks It is a 2007
Well..... You kinda need the evaporator temperature sensor to actually work. Sure you can hack a resistor in the circuit and possibly make the system turn on. Then the compressor wouldn't be able regulate the temperature and the evaporator would ice up, which results in no airflow or cooling. Yes it stinks that the engineers designed this so that you have to take it all apart, but that's how it is. The system needs to know the temperature as part of a feedback loop to control the compressor. Posted via the PriusChat mobile app.
Is it possible it could be something else. Seem to be working fine then just totally stopped. After replacing the heater control valve. Does the textstream image I posted shed any light on it? Thanks
Well, it does show an evaporator temperature of −21.46 ℉, which I'll go out on a limb and guess isn't right. Or else, please tell us what kind of refrigerant you're running. I'm pretty sure the thermistors used are negative-temperature-coefficient, so a very low reading like that would indicate a very high resistance or open circuit. Such a problem can always be something other than the thermistor itself, like the wiring to it or a connector in that wiring. That's why there's still diagnostic work for a human to do after reading a trouble code. The connector at the A/C amplifier is probably accessible without a whole lot of work. A person could use the diagram to identify the pins there that correspond to the sensor, and measure its resistance from there, see what you get. I'm not looking in a Gen 2 repair manual at the moment, but it wouldn't surprise me if the troubleshooting instructions for that code might start with a step like that.
Though a bit dated, here is the workup for DTC B1413 : https://share.qclt.com/%E4%B8%B0%E7%94%B0%E6%99%AE%E7%91%9E%E6%96%AF%E5%8E%9F%E5%8E%82%E8%8B%B1%E6%96%87%E6%89%8B%E5%86%8Cpdf%E6%A0%BC%E5%BC%8F/Repair%20Manual/04pruisr/05/2044g/cib14131.pdf
Okay thanks got troubleshooting printed out. Just thought there might be a hack or should be. For a car with so many miles, to drill a whole housing or duct work and stick new sensor in there and bypass old sensor. Appreciate all information have a great day!
Wanted to post a follow-up answer found that when replacing the blower unit. the AC the wire for the evaporator temperature got caught and pull apart, just to the left of the blower two wires one blue. When plug back in all ran fine. Also did find other people on YouTube that had bad evaporator sensor plugged in a spare and just left it in the glove box. that is an option if it is bad. Just thought it would be good information for someone in the future with the same problem. Have a great day!
It sounds like an option likely to lead to evaporator icing and intermittent cooling, or early wear-out of the compressor, or both.
