P1653 code Have a rave 4 ahd the code p1653 show up what is the meaning of that

Try this link, you may want to have it repaired, if you do not complete set of tools, knowledge, skill and room.
http://p1653.enginetroublecode.com/

run the fault codes
indicates a problem idle control sensor

The code reads as:
P1653 = SCV Circuit Malfunction / 58
An SCV is a Suction Control Valve. This is a valve that regulates fuel pressure as it reaches the injectors. If it starts to fail, the vehicle will run badly and use more fuel. The vehicle may even refuse to start.
They are not too expensive and a good mechanic will be able to change it quite quickly.

I, feel sorry for you, after reading your problem, but don't worry you visit the Reliable-Store they will help you for sure.
Toyota RAV4 Electrical Wiring Diagram Manual 2000 2006

Take it to a ASE certified repair facility ,they'll fix it up ! Don't just replace parts !!!!!

P0171 - is a lean code bank 1 -possible vacuum leak , low fuel pressure , plugged fuel filter ,
P0300 - is a random misfire code which is understandable with a lean code .
P0420 As the code description implies the P0420 code means that the vehicle's control module has detected that the three-way catalytic converter is not working properly (is not as efficient as the factory is expecting). Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases the catalytic convert needs to be replaced to fix the problem. If the P0420 code is combined with other codes, try fixing the other codes first
P0452 - EVAP Control System Pressure Sensor Low Input
P0446 - Evaporative Emission Vent System Performance
P0453 - Fuel Tank Pressure Sensor Circuit High Voltage
P1639 - PCM 5 Volt Reference Voltage Circuit Condition
P1653 - Power Steering Output Circuit Malfunction
P1651 - Fan 1 Relay Control Circuit
If you don't know what your doing take it to a repair shop before you waste your money ! You have a lot of problems here an I don't think the computer is bad , I'd say lack of maintenance ! You need to learn how to test thing's to fix them ! From the five volt reference voltage code , I'd say one of your sensors is shorted internally bring down the ref. voltage circuit causing the no start, but then again the 5volt ref. circuit in the PCM could be the problem . What you need to do is Disconnect all sensors that receive 5volt ref. signal one at a time an see if it will start . If I knew what year vehicle yours is I could tell you what sensors ! MAP, TPS , etc...

Scv for toyota caldina

P1653 SCV Circuit Malfunction
This could be caused by the oil control valve, low oil level, infrequent oil changes, a fault in the wiring to the valve or a bad PCM. What is odd is that the code is not listed in my information database.

P1653 P1653 - Power Steering Output Circuit Malfunction Problem with electrical steering rack

1az-fse engine p1653 scv fault .how to repair

If you are not experiencing any actual driveability problems such as with your brakes, considering the DTC P1653 with P0650 then the problem may be electrical.

Start your search with the fuse for your traction control system, it is under the hood in the compartment mounted to the passenger side strut tower. If nothing is wrong with that then check your wiring harnesses from that box for loose connection or wire damage, and also under the dash.