TOYOTA PRIUS READY SIGNAL BUT HAS NO POWER ON DRIVE OR REVERSE!,HELP

Transaxle is the proper name for the Prius transmission. Same thing. People use the terms interchangeably,

Did the engine run for more than 8-9 seconds? Time it. This is really important. If engine won't run for more than 8 seconds it never started and you have a problem with gas engine.

Also did your buy the gen1 hv battery from someone who knows a lot about these cars?

 

The Prius has a transmission that is integrated into the front axle - hence the term "trans-axle". There is a new posting that shows how to replace the transmission on a Gen II. It might be of some help. But, your Gen I car has a number of differences.

Good Luck

 

Googling the DTC's reveals the following

P0100 MAF (Mass Air Flow)
P0110 Intake Air Circuit Malfunction
P3100 High Voltage ECU Malfunction
P3125 Inverter Failure

Also, I would suggest you take a look at the following link. It has information that may or may not pertain to your situation.

Toyota Prius: Hybrid Inverter caused Transmission to fail?

That's all I can say about it. I am very sorry that I cannot help you any more than I did. Patrick Wong is very knowledgeable and hopefully he or another well versed PC'er can give you more and better advice.

Good luck to you and please post again once you find out exactly what is the problem. That will help other's in the future when they run into the situation you are in.

 

FYI, I simply gave you an idea of what the codes represent. I cannot pinpoint the exact problem.

I am grasping at straws at this point, however I did just read on another page that MG2 may have gone bad in the transaxle. Take a look at this thread.

Again, Patrick Wong is the one that can really help you. Bob Wilson is another one.

Here's the link.

2002 prius transmission failure ? | PriusChat

 

Patrick is another individual who regularly reads and post's here on PC. He is well known for his ability. That is why I recommend him. I suspect he will reply to this post. I wish I could give you more and better information. Like yourself, I am still learning about the Prius.

 

That makes sense to me also. There are a lot of components that work together to make the Prius function. It is a wonderful machine, but can be a headache when it breaks.

Patrick Wong | PriusChat is the man. He is well respected here in this forum and is very knowledgeable.

 

• P0100 - Mass Air Flow Circuit Malfunction
• P0110 - Intake Air Temp. Circuit Malfunction
• P3100 - HV ECU Malfunction, need the info code to fault isolate
• P3125 - generic inverter error, need the info code (i.e., sub-code) to fault isolate.

When working on a possible transaxle problem, the first step is to drain the oil and keep a one cup sample in a clean, dry container for possible oil analysis. Then drop the pan and look for additional evidence of failure, debris or evidence of 'burnt' oil. These are the indicators that the transaxle is bad.

Without the mass air flow, the engine is not going to run. The failed intake air temperature sensor is another problem that should keep the engine from running. For grins, open the engine air box, remove the air filter and look through the throat. See if the throttle plate moves as one common problem has been a sticky throttle plate. This can be associated with a lot of problems (search for 'throttle cleaning'.)

GOOD LUCK!
Bob Wilson

 

The "info codes" or sometimes called 'sub-codes' are found by Prius-aware scanners:

• Scangauge II - the XGAUGE definitions are in the sticky area
• AutoEnginuity - reads them
• miniVCI - a hacked TechStream, it should work
• Graham Miniscanner - does not read the "Info codes"

If you do go with the miniVCI, be sure and order the one from the Xhorse reseller as their unit has the updated firmware. However, it took almost two weeks to show up. The Scangauge II can be gotten faster but you'll need either the pig-tail described in the sticky or get the ISO-9141/KWP2000 cable from the manufacturer. AutoEnginuity can be gotten quickly but at ~$500, the most expensive.

Keep the receipt for the cheap scanner and see if you can return it when the better one arrives.

Bob Wilson

 

Some late thoughts and suggestions:

When I bought our first Prius, a 2003 model, I also ordered the two shop manuals and electrical diagram, nearly $300, from Toyota:

• Volume 1 - Diagnostics (I see a used one for ~$35 on Ebay)
• Volume 2 - Repairs (how to do things)
• Electrical diagram - what wires and signals are found on which connectors and pins and color codes

P0100 - Mass Air Flow Circuit Malfunction

Source: DI-23 to DI-26

P0110 - Intake Air Temp. Circuit Malfunction

Source: DI-28 to DI-31

P3100 - HV ECU Malfunction

Source: DI-234 to DI-241

P3125 - Converter & Inverter Assembly Malfunction

Source: DI-271 to DI-306

The TIS service will allow you to buy access by the day or longer to get online access to this information. An old guy, I prefer a paper manual. Avoid the Ebay CDs as they are poorly digitized, non-indexed, pirate copies of the manuals . . . a lot of unhappy buyers reported.

GOOD LUCK!
Bob Wilson