Help with Techstream Error Codes on '05 and 192k

How’s the 12 volt battery voltage after sitting overnight? How’s the oil level?

 

You have a P0A80 code, but I don't see a photo of the freeze frame data. Click on the snowflake icon to the left of the code. It will have more information. I also didn't see any HV battery info (voltages and internal resistances) in your photos. Most of that info will probably be in the freeze frame data, but you can also access it live under the HV Battery tab.

 

Integ,

That's my bad, my eye's ain't as good as they used to be. Upon review, its a P0A90, not 80. My mistake.

P0A90, subcode 239 (subcode is in the freezeframe)

Definition: Drive Motor A Performance
Detection Condition: HV transaxle input malfunction (shaft damaged)
Trouble Area:
1. Engine Assembly
2. HV tranaxlw assembly (shaft or gear)
3. Transmission input damper
4. Wire harness or connector
5. HV control ECU

P0102, Mass or Volume Air Flow Circuit Low input
1. open in mass air flow meter circuit
2. mass air flow meter
3. ECM

Sorry about the posting delays, my computer keeps locking, due to some loop loading from this site.

P0335, Crankshaft Position Sensor A circuit
1. Open or short in CP sensor circuit
2. Crankshaft position sensor
3. Signal plate (crankshaft)
4. ECM

Considering the wide range of codes, and that the car was working fine before you parked it for a few days, I would first verify the 12v battery is good. Then I would start hunting gopher. Then do a really good inspection of the wire harness again.

 

That 14v is during operation.

Check it tomorrow morning prior to doing anything.

That myriad of codes might be due to a low 12 volt battery.

 

Your battery is about 50% discharged .

Do you have access to a battery charger? If so, put it on the charger overnight and see what you get.

You can also disconnect the 12 volt battery for a period of time ten reconnect it and see what codes return .

Good luck and keep us posted .

 

No, but you don't want to be chasing your tail. All it takes is a load to drop the voltage below 10 V and then there could be red herrings.

At 11.96 V your battery state of charge is near zero, so get it on a charger and charge it up. However, this is just another problem (not the problem), and is an easy on to fix. So, why not fix it?

The FFD for the P0A90-239 shows the engine running and the B+ at 13.88 V. This is the moment the fault triggered, so not like a false code, sorry.

 

See post #5.....
If the engine will not start, you must stay very aware of how much you discharge the HV battery trying to turn the engine over. Try too many times, unsuccessfully, and the HV battery will be depleted. Then things get more complicated, as you would need to charge it.

You need to look at the codes, they are telling you there are issues. From a hungry gopher? maybe or maybe not, but a problem is there. Apparently some signals are missing.

 

That seems to me like quite a variety of errors. I'd be looking hard for chewed up wires.

 

I guess you posted while I was typing.

I don't know about all of them, but the mass air flow shouldn't be hard to at least start chasing down. The sensor is inside the throttle body. You could try following that wire to the harness and then following the harness. Perhaps someone with a manual will come along soon with a diagram.

 

I'll suggest another approach, one I've mentioned before in other threads, but doesn't seem to have been brought up in this one yet.

Write down the detection conditions for the codes you have. These are found in the Repair Manual on the page for each code, and they are not the same as the one-liner catchy fortune-cookie "description" for the code. The detection conditions explain the exact conditions or sensor measurements that the computers are programmed to respond to by setting the associated code.

Once you have written down those detection conditions, start thinking about what could be happening in the car that would result in that combination of conditions being measured.

People who have a bunch of codes together often see that instinctively as a sign of something random or incoherent or defying diagnosis. Think about it the other way, as a combination of detection conditions and what would make them occur together, and you often can find it is a gift that tremendously narrows down the possibilities you have to check.

-Chap

 

You'd make a great detective, Chap!

 

Not likely.

P0335 is a crankshaft position sensor error, which is towards the bottom and rear of the motor (IIRC).
P0A90 is a transaxle error (Drive Motor "A" Performance).

Check the wiring harnesses coming/going to these. Sorry can't be more help on exactly where they are.

 

One down and two to go. Hopefully.

I think I would expect to find the remaining two around the area where the crankcase and transaxle meet. But the chew could be some distance from that point. Probably very hard to find down in there. I don't envy you one bit. Happy hunting.