I need to install the control module for park assist but when i am going to program the computer online it always failed.any advise guys.. thanks a lot and godbless

Question edited to add some real sentences.
Question moved to model category.

Not sure what you mean you "got a key programmed already". The key and the vehicle need programming together at the same time using a professional grade scan tool computer.

You need to reset the immobilizer and security system. There are details here. Do you have a voltmeter? If the battery is below 11 volts, the security systems will fail. If the ideas here don't work, you need an auto electrician or an auto locksmith to diagnose and fix. Looking at the wires on the PCM won't help much. The PCM is the Powertrain Control Module, your antitheft and immobilizer is a joint effort between Body Control Module, Engine Control Module and Antitheft Security Module.

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First you need to read the code's to find out what the problem is , you don't just guess and replace part's . You really should take it to a qualified repair shop if you don't know that .
Parking Aid The parking aid system consists of the:

• parking aid sensors
• parking aid speaker
• parking aid module

The parking aid system is activated when the parking aid module receives a network messages from the instrument cluster indicating that the vehicle is in reverse. The parking aid system sounds a warning to alert the driver of stationary objects near the rear bumper when REVERSE is selected. The parking aid system assists the driver in detecting certain objects while the vehicle moves in reverse at speeds less than 4.8 km/h (3 mph). The parking aid system may not detect angular or moving objects.

Inspection and Verification

1. Verify the customer concern.

1. Visually inspect the following for obvious signs of electrical damage.
   
   Visual Inspection Chart Electrical
   • Smart junction box (SJB) fuse 18 (10A)
   • Circuitry
   • Connector(s)
   • Parking aid sensors
   • Parking aid speaker
   • Parking aid module

1. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.

1. If the cause is not visually evident, connect the diagnostic tool to the data link connector (DLC) and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
   • check that the program card is correctly installed.
   • check the connections to the vehicle.
   • check the switch position.

1. If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool operating manual.

1. Carry out the diagnostic tool data link test. If the diagnostic tool responds with:
   • CAN circuit fault; all electronic control units no response/not equipped, refer to Section 418-00 .
   • No response/not equipped for parking aid module, Go To Pinpoint Test A .
   • System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the parking aid module.

1. If the DTCs retrieved are related to the concern, go to the Instrument Cluster Diagnostic Trouble Code (DTC) Index or the Parking Aid Module Diagnostic Trouble Code (DTC) Index.

1. If no DTCs related to the concern are retrieved, GO to Symptom Chart . Instrument Cluster Diagnostic Trouble Code (DTC) Index DTC Description Source Action U0159 Lost Communication With Parking Aid Module Instrument Cluster REPAIR all other DTCs first. If the DTC is still present Go To Pinpoint Test A . All Other DTCs - Instrument Cluster REFER to Section 413-01 .
   
   
   Parking Aid Module Diagnostic Trouble Code (DTC) Index DTC Description Source Action B1299 Power Supply Sensor Circuit Short to Ground Parking Aid Module Go To Pinpoint Test C . B1342 ECU is Faulted Parking Aid Module CLEAR the DTCs. REPEAT the parking aid module self-test. If DTC B1342 is retrieved again, INSTALL a new parking aid module. REFER to Parking Aid Module in this section. CLEAR all DTCs. REPEAT the self-test. B2477 Module Configuration Failure Parking Aid Module REFER to Section 418-01 . C1699 Left Rear Sensor Circuit Short to Battery Parking Aid Module Go To Pinpoint Test D . C1700 Left Rear Sensor Circuit Failure or Blockage Parking Aid Module Go To Pinpoint Test C . C1701 Left Rear Sensor Circuit Fault Parking Aid Module Go To Pinpoint Test E . C1702 Right Rear Sensor Circuit Short to Battery Parking Aid Module Go To Pinpoint Test D . C1703 Right Rear Sensor Circuit Failure or Blockage Parking Aid Module Go To Pinpoint Test C . C1704 Right Rear Sensor Circuit Fault Parking Aid Module Go To Pinpoint Test E . C1705 Left Rear Center Sensor Circuit Short to Battery Parking Aid Module Go To Pinpoint Test D . C1706 Left Rear Center Sensor Circuit Failure Parking Aid Module Go To Pinpoint Test D . C1707 Left Rear Center Sensor Circuit Fault Parking Aid Module Go To Pinpoint Test E . C1708 Right Rear Center Sensor Circuit Short to Battery Parking Aid Module Go To Pinpoint Test D . C1709 Right Rear Center Sensor Circuit Failure Parking Aid Module Go To Pinpoint Test C . C1710 Right Rear Center Sensor Circuit Fault Parking Aid Module Go To Pinpoint Test E . C1742 Rear Sounder Circuit Failure Parking Aid Module Go To Pinpoint Test F . C1743 Rear Sounder Circuit Short to Battery Parking Aid Module Go To Pinpoint Test F . U1900 CAN Malfunction - Missing Message Parking Aid Module REPAIR all other DTCs first. REPEAT the self-test. If DTC U1900 is still present, DIAGNOSE the system for a missing transmission range signal. REFER to Section 418-00 . U2051 One or More Calibration Files Missing/Corrupt Parking Aid Module REFLASH the parking aid module. If the DTC occurs after a software reflash, REFLASH the parking aid module again. If the DTC reappears after each attempt to reflash, INSTALL a new parking aid module. REFER to Parking Aid Module in this section. CLEAR all DTCs. REPEAT the self-test. Take your vehicle to a qualified repair shop before you cause more problems .

take it back in for a steering module check
the hyundai I 30 elantra has a recall ( 2015) for loss of power steering due to a loss of steering assistance from an electrical power steering fault
There is a control module that applies full assistance at low speeds , parking or cornering but reduces the assistance effort at speeds where assistance is not really required
from your description, it indicates that the control module is not functioning correctly and so you are advised to take it back in for a recall check or a warranty check on the system

Parking Assist Control Module Parking Assist Distance Sensor

Parking Assist Warning Indicator

These are the components for your parking assist the fuse you are looking for is the ECM / PCM this is the main computer for the car if i had more info on ur problem I might be able to help you more

You can't do this at home it requires special electronic equip that only the Ford dealer has..

I work at a Volvo dealership. If it is the icm that is causing those problems the only other possibility is that there may be corrosion on the wiring harness that plugs into the icm. That will cause loss of signal from the icm. Possibility of corrosion just being cleaned off which would be very cheap, if it has gotten down into the wires the harness would have to be replaced or repaired, not sure on cost. If there is no corrosion anywhere to be found then the icm is the only option, no tricks or loopholes to avoid replacing it. If the icm does have to be replaced I would highly recommend using the dealership and brand new icm. I have read reviews of people claiming that they have purchased used ones from eBay or junkyards but I have never seen it work myself because the icm comes clean with no software on it from Volvo then a dealership will install icm and perform the software download once it is hooked up to your vehicle, this links that part with your car, so yours should not work in someone else's car and someone else's should not work in yours. Always be careful with major electronics for your car in the future as well most of the complicated modules in these cars are designed the same way, vehicle specific programming that makes used ones not work or not work properly. Best way to tell for anything in the future is if you are given an estimate from a dealership and it shows software needed with the part buy from the dealership. If it shows no software needed your usually good to buy an aftermarket or used part that will be cheaper. Side note I have an xc90 that needs the icm replaced asked my technicians if there was any way around it, checked for corrosion and found none, he told me there is no other way, and even with my employee discount the price still hurts. So good luck and pray for corrosion.

Same thing happened with my 95 park avenue a few weeks ago. I talked to a guy I know who is a GM mechanic and he says that the module (the thing on the dash with all the buttons and the temperature display) is broken and needed to be replaced. These computer modules just get funny with age and eventually have to be replaced. You can find one pretty easy on ebay motors. It's not hard to replace, you just have to take apart the dash and take out the old module and put the new one in. Hope this helps!

I had this situation too, exactly. Everybody told me it was probably a rear bumper sensor gone bad, but at least in my case, no such luck. It was the Park Assist Module, basically the control computer for the whole system. A new one fixed it, but was about $300.

This is a shared fuse, if you remove it you will lose other services. As your reverse aid sounds all the time it has a probable fault in the module or wiring. The module is located in the left hand side lower boot. To disable - pull the plugs from the module until you get it checked out. These modules often suffer from dampness in the boot as it is prone to leaking. sometimes just removing and refitting the plugs and then spraying with a water dissipating spray (WD 40) often brings them back to life once they have dried out.
hope this helps - good luck.