How to fix code P1725 echo - 2002 Toyota ECHO

Could be a wiring problem or throttle position sensor or the DC motor that controls the throttle position. P0511 Toyota Idle Control System Malfunction

It appears this is a common but expensive problem:
P1126 Throttle Position (Narrow Range) Sensor Circuit Malfunction
P1725 Insufficient Engine Speed Increase During Self Test
The codes were here:
Jaguar OBD II Trouble Codes

Try searching for x-type throttle position sensor, this seems to be your issue.

The car will need to be scanned for trouble codes. Whatever codes come up will identify what part of the engine is faulty. These codes are not totally exact in pin pointing the problem. You can take the car to Auto Zone or Advance Auto and ask them to run a scan on the vehicle. Then you'll have the codes, but you'll need to go a garge to have the car fixed.

Please contact the code readers manufacturer as this code is not appearing in toyota or generic code charts

Blinks wile you driving? it must be doing it when it raining and sleepery and you swiched it off by ecsident, just resset it, also check it in the manual index under warning lights on control panel. G/luck with that..

P1300 Igniter Circuit Malfunction / 14
P1305 Igniter No. 2 Circuit Malfunction / 15
P1310 Igniter No. 3 Circuit Malfunction /15
P1315 Igniter No. 4 Circuit Malfunction

That code is related to the automatic transmission, It is indicating that the Turbine Shaft Speed Sensor Circuit has Malfunctioned.

Possible causes

Input shaft speed sensor signal (NT) circuit is open or shorted Input shaft speed sensor is damaged or has failed PCM has failed

the engine light on means your car has the obd2 code problem you need to check out the code and delete it, i know this tool is helpful for your car, or you can take your car to toyota dealer to read out the code.

You will need the dealer that can't fix it,
to fix it.

Just love those dealers The dealer
maybe the only one that can get the code
using your VIN #

I am sorry but no, there are different codes some are P codes, some are B codes, and there are other ones, OBD 1 (84-96) systems could flash the check eng lite and give you codes, but they were just two numbers like 12. A typical OBD 2 code is like this P1546, this is a emission code. Kragen auto or any of the chain auto parts stores will read the codes for free.