**ComboMeter works 20% of the time. Sometimes the car turns off completely, sometimes not. I have battery switch on 12v to make sure car is turned OFF. This event started with the switch OFF. **Turn switch ON, insert fob, push button and car starts normally, CM is working and I drive away. **Car dies on highway 3 hours later. Red triangle, typical amber lights EXCEPT NO CEL. OK, red triangle, no cel and NO START. Tried several times to restart and goes READY, but as soon as engine tries to start READY goes out. I was able to move the car to convenient spot under battery power. Get trailer, get car and connect Techstream. Techstream show no reason for what happened. See pics. Never mind the date in TS, laptop battery is dead and I never set the time. Engine will try to start, about 1-2 seconds cranking. Ready will illuminate untill push gas pedal far enough to force engine start. Light foot on pedal will drive/reverse on battery. Once engine attempt to start fails, READY goes out. Pulled air filter and TB was a little black, but not terrible. Shot a little carb cleaner in and a shot on MAF. Good 12v and HV batteries, so dont go there. Gas level was 3 bars, my normal level before filling. Pulled rear seat and put 12v directly on fuel pump, 2.8 amp draw and no bad noises, just a nice light humm. With fuel pump running on separate 12v source, I tried to start with the same failure. A good shot of either down the TB did not work.
My first guess is your hybrid battery is running hot and you might have a hot cell that's about to fail and tech stream didn't catch it because its since cooled and no longer giving bad readings. Replacing the capacitor on your combo meter so it works 100% of the time will also likely help. Without the combo meter system powered up there's other subsystems that won't work. So my second guess is you might find error codes if you can get combo meter to power up long enough to run techstream again. One method you can try is hit the power button without your foot on the brake and let the car power up in ACC mode and then put your foot on the brake and power up again. The failing capacitor works more often with this method.
That is my normal startup procedure. If the battery was overheated, should have thrown a code. The battery fan is clean and does work. The CM was/is working at the moment. I know if the CM was not working there would be NO lights at failure time and car would appear to be simply off and dead coasting to a stop. Once "reset", it can work for several days to a week or so. It will decide to go out a any random time.
