P0AE0 code

Can you post a photo of the electronics section of the battery? The part with the relays and ecu?

 

If this is how you had it installed, when you tried to test it, your problem may be that there are no main fasteners attaching the case to the car body. There needs to be at least 2 of the main bolts installed to ensure there is a good ground path/good continuity between the case and the car body. Remember, the car body is painted. If the battery case is merely sitting on top of the mounting points, it still has a layer of paint between the case and the car body. That makes for poor grounding of the case. The mounting bolts are what provide the electrical path from the case to the bare threaded areas of the holes. The main fastener that is located on the driver side front corner is a very dark color compared to all the other frame fasteners. That one is called the grounding bolt. All the green (ground) wires from the relays fasten to the case near the relays. There needs to be a path for the circuit to complete from the case to the car body.

 

hey I have the same issue that I have no idea how to fix, I just replaced the hybrid battery and getting the same code but I put the bolts can I take a picture and show you to see if I did anything. Wrong

 

This is what the inside looks like please if anyone can help me about this would be great!

 

Absolutely.

 

So the code went away is there anything I still need to do to the battery or does it look good?

 

DTC P0AE0 (INF 228): The HV (hybrid vehicle) control ECU (electronic control unit) monitors the proper operation of the No. 3 system main relay (CON3). If the HV control ECU detects an open or short malfunction of the relay circuit, the HV control ECU illuminates the MIL (message information light/lamp) and sets a DTC (diagnostic trouble code).

The No. 3 system main relay is the one at the front of the electronics bay.



The areas to look at are:

• Wire harness or connector
• No. 3 system main relay
• HV control ECU

You may have (inadvertently) fixed the problem if you unplugged and then replugged any connectors. For me, I would check any wires and connectors going to and from the No. 3 system main relay and make sure there are no breaks in any wire and the connectors are seated and locked in or tightened correctly if it is a mechanical connection like a nut or bolt. The specified Torque for the frame wire to the No. 2 and No. 3 system main relay is 5.6 N*m (or 50 in.*lbf . Note inch*lbf not foot*lbf).

If you are happy that everything tests okay, and you do not have any reoccurrence of DTC P0AE0, then you can call it good.