Please help. 09 randomly died, won’t start beeps like I left the key in. Battery fine.

yes your inverter pump is bad, replace it with a genuine part.

 

You can use almost any 12 volt pump that moves water through a 3/4-in water way . As an inverter coolant pump I left the flat pancake Toyota model for a completely different looking Toyota made pump that generally doesn't have issues It seems the flat pancakes are having problems in manufacturing maybe not made by Toyota anymore or something new old stock is limited whatever the issues are I want no part of it so I went to a pump that looks like a pump that pumps other liquids and other things namely the pump that goes in between the brake accumulator and the brake master cylinder both on the firewall if you will there's a little pump up there that you never hear about because they never break I move that pump from another vehicle to my inverter on the vehicle I drive which is an '09 that pump is cause no hiccups in his head no problems for months now and I won't go back to the pancake.

 

The Gen 2 specs for the pump require it to move 10 liters per minute or above (2004 New Car Features manual, page TH-34).

So if substituting some other pump, at least be sure to select one that'll meet that spec. You should measure the actual circulation through the inverter, transaxle, and radiator, not just what the pump delivers on its own.

 

Generally speaking, when you have warning lights displayed on the dash, there will be OBD2 codes (DTCs) stored in the computers (ECUs). Use an OBD2 scanner to retrieve the stored DTCs. This may help with diagnosing the issue; potentially saving time, parts, and money.

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