06 Prius not starting, low battery?

I'm sure he means lusciousgarage.com.

I imagine there's all kinds of wrong on luscious.com.

 

Position nag is the ECU is not receiving rotational positioning info from that circuit via your wiring
You repaired and is now throwing a DTC.
The car will not drive with that DTC.

You are throwing the red triangle master caution alarm also so the car is very unhappy.

Charge up your new 12 volt battery. Check its voltage
Before installation.

Pull all codes including there 3 digit suffix and
Post here.

 

Oh sorry its lusciousgarage.com

Damn spellcheck.

 

You have the hybrid turtle on the MFD too.

Quit messing with it and get the codes pulled.

 

All three DTC mean that there is a problem with the motor resolver circuit in the transaxle. There is a short circuit.

If you are serious about doing something about this issue, subscribe to techinfo.toyota.com so that you can take advantage of the troubleshooting tree which is provided. That will allow you to test the wiring harness which connects the resolver connector to the hybrid vehicle ECU.

That is necessary to confirm whether the wiring harness is good (or not). If the wiring harness is good then you would check the resistance across the various pins of the motor resolver connector to see whether the resolver is good or bad, based upon the troubleshooting tree.

If those checks are good then you would end up with the assumption that the hybrid vehicle ECU has failed.

 

The lowest level. That $15 investment will save you a tremendous amount of time.

You will need a digital multimeter so you can use the ohmmeter function for the tests.

 

Well, I suggest that upon activating your subscription, you print to .pdf everything relating to the three DTC you had logged, as well as any other subjects of interest to you. Then you should be in good shape to execute the troubleshooting tree whenever you can do so.

Also, I believe that the two day subscription is for two business days so if for example you activate on a Friday, you will probably have access through Monday or Tuesday of the following week.

 

If you don't have Adobe Acrobat or similar, nor a printer, but are on Windows 7 or later, there's a built-in program called "Snipping Tool", which allows you to grab a screen shot, of any portion of the screen, and it can be saved as jpeg. In Start menu (win7) just start typing "snipping..." should find it.

 

I'm not sure why you are asking about the inverter. Having taken those photos, you know what steps you had to take to gain access to the transaxle wiring harness socket.

Use your ohmmeter to check the resistance across the various transaxle socket pins per the repair manual. If that is good, then use the ohmmeter to check the wiring connections between the mating wiring harness socket, and the hybrid vehicle ECU. You may have to run an extension wire for this testing. Use the ohmmeter to determine the resistance of any extensions, so you can subtract that from the reading.

If you did not disconnect the wiring harness from the hybrid vehicle ECU before soldering, it is possible that a static charge may have been passed to the ECU which would not be helpful to the ECU's health. Before you decide that you destroyed the HV ECU, first verify the other components.

 

Well your wiring job is going to have to be redone anyway as you used heat shrink tubing but never shrank them and there a little short. That wont last long no matter how much tape you use over it in an under the hood environment. Use a Western Union splice and corrosion protection applied to the joint after solder and extra long hst.

I see the colors aren't matching either or may be the photo. Was the color code wrong on the donor plug? If so double check the color code transfer and more importantly check that the physical pins in the plug are the same they be slightly different but look the same at a glance if not identical plug.

That's the resolver plug alright right back to the HVECU as Pat says. The HVECU is located behind the glove box on the fender.
Its right next to the Engine ECU. The HVECU is on the right fender side.

 

1. Fully-charge the new 12V battery prior to installation. Some members have recently reported their new Optima battery was partially discharged upon receipt.

2. All ECUs get their startup voltage from the 12V battery. Hence if the battery is in poor condition, that may induce faults that otherwise would not exist.

3. Once the Prius becomes READY, the DC/DC converter within the inverter maintains voltage on the 12V bus at ~13.8V.

4. The transaxle contains two motor generators: MG1 and MG2. The resolver sensors keep track of the exact position of each MG. This is required so that the hybrid vehicle ECU can compute the RPM of each MG, determine what direction each MG is spinning, etc. MG2 is connected to the transaxle output shaft so its speed is always proportional to vehicle speed. MG1 is required to allow the gasoline engine to spin even when the car is at a stop. MG1 also acts as the gasoline engine's starter motor. MG1, MG2, and the gasoline engine are all connected together via a power split device located within the transaxle. The PSD is similar in functionality to a differential.

5. Given your description of the work that had been done to your car and the logged DTC, the most likely fault areas to examine would be the transaxle connector, to see whether there is any fault within either of the two resolver sensors, as well as the soldering/splice work you did.