What is the 1586 mean and my hyundai accent 2002 the speed is control

P1529 means nothing more than the TCM (transmission control module) has requested that the ECM (engine control module) turn on the check engine lamp. Best to have this checked out as there could be an error code for the transmission.

p1586.... throttle control unit throttle position malfunction,hope this helped.

First you need to clear the codes. If these codes are from before you did the work. The ECM still thinks it's bad. Then if they come up again start with one and work your way through.

Have the fault codes read Replace the faulty units with genuine one because most aftermarket units are not set
for OEM cpu units and are not completely compatible

P1529 - MIL light request

P0722 - Transmission Pulse Generator B. The Pulse Generator detects the revolution of the idler gear parking pawl lock gear and emits a pulse signal. The pulse signal is sent to the Transmission Control Module (TCM) which converts it into vehicle speed. The code is detected when the Pulse Generator B failed to provide a signal to the TCM upon initial movement of vehicle.

Symptoms:
- Engine Light On (or Service Engine Soon Warning Light)
- Speedometer improper reading
- Possible shifting problems

Possible Causes:
- Pulse Generator B harness or connectors
- Pulse Generator B circuit is open or shorted
- Pulse Generator B

Code 0734 : Gear 4 Incorrect Ratio. you may wanna take back to the Mechanic and tell him whats going on and let him deal with that. Good luck

2002 hundai Accent are known of that issue. And that a input speed sensor malfunction.

P1529- TCM MIL request signal failure
P1404- DTML Heater circuit failure
P0722- ATM Output speed sensor no signal

All these together indicate a possibly cut wiring harness failure, or other major circuit issue.

dear friend-the code P1529 means transmission control module(TCM)-communication problem,so please look at the following items-wiring,tcm,ecm,
just a hint if the transmission is slipping then the tcm is getting the wrong information from the input and out sensors.

P1529 means nothing more than the TCM (transmission control module) has requested that the ECM (engine control module) turn on the check engine lamp.
P0734 basically indicates that your transmission is slipping.
You need to take this car to an authorized repair center for hyundai cars. Replacing the filter and fluid on the transmission might save this transmission but I would be willing to bet that a total transmission rebuild is in order.

Good Luck