Smart key System consists of transponder, which is in the FOB key head, and Smart key ECM. Smart Key System has FOB holder, which includes antenna coil, to communicate with transponder for immobilizer communication.

Smart Key ECM communicates with PDM via serial communication line so that Smart Key ECM sends signal to PDM.

FOB is requested authentication from Smart Key ECM by using the LF antenna with LF communication. And then, FOB sends authentication signal through the SRx with RF communication.

With this procedure, Smart Key ECM sends authentication signal to Engine ECM in order to allow the engine start. Finally, ESCL control module release steering lock with authentication.

Authentication for immobilizer is classified two different way. one is pre- authentication and the other is general authentication.

Regardless of success or failure, Pre-authentication makes Immoblizer lamp remains OFF. However, General authentication makes Immobilizer lamp is ON for 30 seconds If authentication is successful. However, if authentication is failed, Immobilizer lamp is OFF for 10 seconds.

■ Condition for Pre-authentication.

1. OFF and Driver door is open when FOB is in passenger compartment

(Seek every 3 seconds for 30 seconds.)

2. OFF and Driver door is close when FOB is in passenger compartment

3. FOB is inserted in FOB Holder

4. Pressing Brake padel when FOB is in passenger compartment

■ Condition for general authentication

1. Pressing start butteon when FOB is in the passenger compartment

During the Immobilizer authentication, If there is any wrong VIN(Vehicle Identification Number) or MIN(Model Identification Number) signal on the communication message, ECM sets DTC P1696.

3.

Check Smart Key ECM status parameter if DTC is retrieved.

Fig.1) It shows that 2(two) FOB key is registered, Smart Key ECM(integerated in IPM) is learnt status.

4.

Is the smart Key ECM learnt ?

	▶ Fault is intermittent caused by poor contact in Smart key ECM and/or ECM's connector or was repaired and Smart key ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.
	▶ Go to "Component Inspection" procedure.

4.

Is the neutralization of Smart Key ECM, Engine ECM and key teaching normal ?

	▶ Fault is intermittent caused by poor contact in Smart Key ECM and/or ECM's connector or was repaired and Smart key ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.
	▶ Substitute with a known-good Smart Key ECM and check for proper operation. ▶ If the problem is corrected, replace Smart Key ECM and then go to "Verification of Vehicle Repair" procedure.

note

■ PIN code is programmed in Smart key ECM, Transponder, ESCL, PDM and FOB.

1.

If the Smart key ECM is not registered with PIN, key teaching process is not proceeded.

2.

Registering PIN is available after Smart Key ECM is neutralized.

3.

Neutralization of Engine ECM is available with GDS (Registering PIN code)

4.

If the virgin engine ECM is installed on vehicle, Engine ECM is automatically programmed PIN code by Smart Key ECM.

5.

Registering PIN code is only possible for virgin or neutralized status.

■ It is possible to acess to All of the learning procedue only with GDS.

And, FOB key must be inserted in FOB holder in order to proceed learning procedure.

(There is only one menu for registering Smart key on the GDS that makes registering all of the component. In case of replacing each module, New registration should be done with GDS)

●

Smart Key ECM Learning

1. Before learning procedure for FOB Key, PDM or ESCL, Smart Key ECM should be registered PIN code first.

2. In case of replacing Smart Key ECM, All of the keys should be newly registered again.

3. In case that Smart Key ECM receives 3 times with wrong PIN, It is not allowed for neutralization and Key Teaching for 1 hour.

4. If the battery is discharged during neutralization or Teaching, Timer will start again from begining. Therefore, it is avoidable to wail for 1 hour.

●

PDM Learning

1. It is O.K for registering PDM just one time. And, it is available for PDM to neutrailze and re-teach with same PIN code.

2. In case that Power supply is shut off to ESCL right before first FOB key is registered, Every component status is moved to right before power shut off and previous PIN is used for communication with PDM and Smart key ECM

●

ESCL Learning

1. It is O.K for registering ESCL just one time. And, it is available for ESCL to neutrailze and re-teach with same PIN code.

After a repair, it is essential to verify that the fault has been corrected.

4.

Are any DTCs present ?

	▶ Go to the applicable troubleshooting procedure.
	▶ System is performing to specification at this time.