Cant start after period of inactivity

How many bars is the hybrid battery? Is it discharged at a level that can not start?

 

Is your new 12 V battery fully charged ?
Don't guess. Be sure.

 

And .....keep in mind any time the 12v system is lost ( 0 volts) like when replacing a 12v battery, you will need to have your foot on the brake and press the power button 2 times. The first time will power up the dash and displays along with pretty much every warning light possible. Press it the second time and those warnings should disappear and the car should go ready. This assumes your car didn't develop any problems while sitting dormant.

 

I suggest to read the OBD2 codes before you continue troubleshooting.

Since the car was sitting, I suspect that the hybrid battery went bad, for example corrosion developed and car can not even start or maybe even one module lost voltage faster than the rest to a point to trigger codes In other words, the battery was weak but the issue appeared when you stopped driving daily.

 

you definitely need the codes with all those lights on. sounds like the 12v is okay

 

Both of those numbers indicate a battery that is NOT fully charged.
While it is not likely to be the only remaining problem, you need to ELIMINATE it with a full charge before you do anything else.

 

How are you getting those readings? If it's through the car's displays that can muddy the waters; try a digital multimieter, with the car off?

My suspicion is "a few weeks" has drained the 12 volt.

 

I generally find the car's MFD reading to show a slightly lower value than at the battery, so even if it might "muddy the waters" it would be in a conservative direction.

But the values reported by the OP include one for "no load (other than door dome light)", which suggests to me that something other than the MFD (which would be off then) was used.

Both voltages, while low enough to invite kibitzing about whether the battery is "fully charged", are more than comfortably high enough to proceed with diagnosis according to Toyota.



Pictures of dash lights will not help, because there are only a few dash lights and they are used to indicate hundreds of possible issues. What will help will be posting the trouble codes here. The car will be happy to tell you why it is choosing not to start, if you ask.

 

My car's never shown much emotion, nor talked to me.

 

It talks in funny five-character phrases (that all start with P or C or B or U) or in light blinks.

While maybe not on the level of conversing with polar bear and python, or cursing in fluent kangaroo, it can still be useful to have those chats.

 

Well that was his suspicion too.

 

Yeah I think you're right. I was reading his initial post as the battery was replaced some time back, and now, with several weeks down time, the new one was suspect. But now not sure.

 

Wow, that is some pretty impressive damage to the battery ECU, I don't think I've seen such extensive damage extending right into the ECU.

You might not need a new hybrid battery, you just might need the no.2 frame wire harness replaced to go with the replaced battery ECU. Until the ECU and the no. 2 frame wire harness are replaced you will not be able to successfully diagnose the hybrid battery. Also, the ECU needn't be brand new either. A secondhand one (from a wrecker) in good working order can be had for a 1/6 to 1/4 the price of a new one. Unfortunately, I don't think Toyota will do the work to open up the battery and replace the harness, so find a good independent hybrid shop to do the work.

In which city in New Zealand are you?