I replaced the HV ECU in my daughter's 2008. We have done the 4 and 13 jumper wire trick, but still the engine will not start. Next step suggestions welcomed.
Is this the same car that you created a thread about on September 6th? https://priuschat.com/index.php?posts/3563003
B2799-539 Code | PriusChat I think you may have to redo the pin 4 and 13 again. May be wait more time?
I have done a paperclip in pins 4 and 13 again. Dashlights flicker. Did this procedure for 30+ minutes and turned it off. Took out jumper and key. Waited 5 minutes. Inserted key and pushed start button. Lights are solid. Triangle is still there. No start. I did not replace the Engine ECU, just the HV ECV and converter/inverter. Should I call a locksmith and have the fob reprogrammed?
UPDATE: Current status- With car in ready. The engine fired with jumper in pins 4 and 13 and key fob in. Will not start without jumper. I will try a couple more times.
It's running!!! After about 4 tries. The fob is sync'd. Now it is displaying the following codes: C1310 POA08-264 POA08-591
Yay progress! Search around for threads about your P0A08 and P0A09 codes. They pertain to a simple signaling circuit between the HV control ECU and the DC/DC converter, and there's information in other threads about troubleshooting that.
All solved! Final fix on the P0A08 and P0A09 codes. The 5 amp fuse located in the positive battery cable tested good, but wasn't long enough to make a good connection. All good - no triangle. No codes! Thank you everyone!
