Smart Key Code Saving System Diagnosis Hyundai Santa Fe III

DTC INDEX

DTC INDEX

Scheme 199

General Description

The PCM controls the engine, in a normal way for starting and running, and starts communication with the Smart Key ECM, sending a PIN request to the Smart Key PCM and waiting for valid release message from it until the release time period has ended.

In case of Smart Key PCM immobilizer function is locked, the Smart Key PCM answer is the no release message. PCM enters in the locked state, which causes the activation of the immobilization actions of the engine.

In case of Smart Key PCM immobilizer function state is released, the Smart Key PCM answer is the release message, including the information Smart Key PCM in learnt mode and the PIN code.

DTC Description

This DTC is set, after PCM sends wake-up signal, if response signal from Smart key PCM is abnormal structure or is not valid message during PCM communication

DTC Detecting Condition

Scheme 200

1. IG KEY "ON" & Engine "OFF".
2. Erase DTC after connecting GDS.
3. Check Smart key status in "Vehicle S/W Management", if DTC is retrieved.
4. Is the Smart key PCM learnt status? YES Fault is intermittent caused by poor contact in Smart key PCM and/or PCM's connector or was repaired and Smart key PCM 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»(/hyundai/santa-fe/iii-2012-2016/remont/door-locks-anti-theft-systems/#smart-key-code-saving-system-diagnosis__verification-of-vehicle-repair) " procedure. NO Go to " «COMPONENT INSPECTION»(/hyundai/santa-fe/iii-2012-2016/remont/door-locks-anti-theft-systems/#smart-key-code-saving-system-diagnosis) " procedure.

Scheme 201

1. Check Smart Key PCM Inspection IG KEY "ON" & Engine "OFF". Neutralize smart key PCM with GDS. Perform key teaching procedure for smart key PCM with GDS. CAUTION: Pin code must be prepared to Neutralize Smart Key PCM and to perform key teaching procedure Is the neutralization of Smart Key PCM, Engine PCM and key teaching normal? YES Fault is intermittent caused by poor contact in Smart Key PCM and/or PCM's connector or was repaired and Smart key PCM 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»(/hyundai/santa-fe/iii-2012-2016/remont/door-locks-anti-theft-systems/#smart-key-code-saving-system-diagnosis__verification-of-vehicle-repair) " procedure. NO Substitute with a known-good Smart Key PCM and check for proper operation. If the problem is corrected, replace Smart Key PCM and then go to " «VERIFICATION OF VEHICLE REPAIR»(/hyundai/santa-fe/iii-2012-2016/remont/door-locks-anti-theft-systems/#smart-key-code-saving-system-diagnosis__verification-of-vehicle-repair) " procedure. NOTE: PIN code is programmed in Smart key PCM, Transponder. If the Smart key PCM is not registered with PIN, key teaching process is not proceeded. Registering PIN is available after Smart Key PCM is neutralized. Neutralization of Engine PCM is available with GDS (Registering PIN code) If the virgin engine PCM is installed on vehicle, Engine PCM is automatically programmed PIN code by Smart Key PCM. Registering PIN code is only possible for virgin or neutralized status. All Learning procedure is able to do with a GDS in the vehicle's ignition key off state. Smart Key PCM Learning Before learning procedure for FOB Key, Smart Key PCM should be registered PIN code first. In case of replacing Smart Key PCM, All of the keys should be newly registered again. In case that Smart Key PCM receives 3 times with wrong PIN, It is not allowed for neutralization and Key Teaching for 1 hour. If the battery is discharged during neutralization or Teaching, Timer will start again from beginning. Therefore, it is avoidable to wait for 1 hour.

Verification of Vehicle Repair

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

1. Connect GDS and check "No. of Key learnt, PCM status and Smartkey PCM" status.
2. Select "Diagnostic Trouble Codes (DTC)" mode and then clear DTC.
3. Operate the vehicle within the enable condition and monitor the DTC on the GDS.
4. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

Scheme 202

The PCM controls the engine, in a normal way for starting and running, and starts communication with the Smart Key PCM, sending a PIN request to the Smart Key PCM and waiting for valid release message from it until the release time period has ended.

In case of Smart Key PCM immobilizer function is locked, the Smart Key PCM answer is the no release message. PCM enters in the locked state, which causes the activation of the immobilization actions of the engine.

In case of Smart Key PCM immobilizer function state is released, the Smart Key PCM answer is the release message, including the information Smart Key PCM in learn mode and the PIN code.

DTC P1690 is set PCM has not received any signals related starting engine, Although PCM sends wake up signal to Smart Key PCM.

Scheme 203

1. IG KEY "ON" & Engine "OFF".
2. Erase DTC after connecting GDS.
3. Check Smart key status in "Vehicle S/W Management", if DTC is retrieved.
4. Is the smart Key PCM learnt? YES Fault is intermittent caused by poor contact in Smart key PCM and/or PCM's connector or was repaired and Smart key PCM 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»(/hyundai/santa-fe/iii-2012-2016/remont/door-locks-anti-theft-systems/#smart-key-code-saving-system-diagnosis) " procedure. NO Go to " «WIRE HARNESS INSPECTION»(/hyundai/santa-fe/iii-2012-2016/remont/door-locks-anti-theft-systems/#smart-key-code-saving-system-diagnosis) " procedure.

Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness and terminal connections. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
3. Has a problem been found? YES Repair as necessary and go to " «VERIFICATION OF VEHICLE REPAIR»(/hyundai/santa-fe/iii-2012-2016/remont/door-locks-anti-theft-systems/#smart-key-code-saving-system-diagnosis) " procedure. NO Go to " «SIGNAL CIRCUIT INSPECTION»(/hyundai/santa-fe/iii-2012-2016/remont/door-locks-anti-theft-systems/#smart-key-code-saving-system-diagnosis__signal-circuit-inspection) " procedure.

Signal Circuit Inspection

1. IG KEY OFF.
2. Disconnect Engine PCM connector.
3. IG KEY "ON".
4. Measure voltage between signal terminal of PCM harness connector and chassis ground. Specification : About 12V
5. Is the measured voltage within specification? YES Go to " «COMPONENT INSPECTION»(/hyundai/santa-fe/iii-2012-2016/remont/door-locks-anti-theft-systems/#smart-key-code-saving-system-diagnosis) " procedure. NO Check open or short to signal circuit and then, go to " «VERIFICATION OF VEHICLE REPAIR»(/hyundai/santa-fe/iii-2012-2016/remont/door-locks-anti-theft-systems/#smart-key-code-saving-system-diagnosis) " procedure.

Scheme 204

1. Check Smart Key PCM Inspection IG KEY "ON" & Engine "OFF". Neutralize smart key PCM with GDS. Perform key teaching procedure for smart key PCM with GDS. CAUTION: Pin code must be prepared to Neutralize Smart Key PCM and to perform key teaching procedure Is the neutralization of Smart Key PCM, Engine PCM and key teaching normal? YES Fault is intermittent caused by poor contact in Smart Key PCM and/or PCM's connector or was repaired and Smart key PCM 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»(/hyundai/santa-fe/iii-2012-2016/remont/door-locks-anti-theft-systems/#smart-key-code-saving-system-diagnosis) " procedure. NO Substitute with a known-good Smart Key PCM and check for proper operation. If the problem is corrected, replace Smart Key PCM and then go to " «VERIFICATION OF VEHICLE REPAIR»(/hyundai/santa-fe/iii-2012-2016/remont/door-locks-anti-theft-systems/#smart-key-code-saving-system-diagnosis) " procedure. NOTE: PIN code is programmed in Smart key PCM, Transponder. If the Smart key PCM is not registered with PIN, key teaching process is not proceeded. Registering PIN is available after Smart Key PCM is neutralized. Neutralization of Engine PCM is available with GDS (Registering PIN code) If the virgin engine PCM is installed on vehicle, Engine PCM is automatically programmed PIN code by Smart Key PCM. Registering PIN code is only possible for virgin or neutralized status. All Learning procedure is able to do with a GDS in the vehicle's ignition key off state. Smart Key PCM Learning Before learning procedure for FOB Key, Smart Key ECM should be registered PIN code first. In case of replacing Smart Key PCM, All of the keys should be newly registered again. In case that Smart Key PCM receives 3 times with wrong PIN, It is not allowed for neutralization and Key Teaching for 1 hour. If the battery is discharged during neutralization or Teaching, Timer will start again from beginning. Therefore, it is avoidable to wait for 1 hour.

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

1. Connect GDS and check "No. of Key learnt, PCM status and Smartkey PCM" status.
2. Select "Diagnostic Trouble Codes (DTC)" mode and then clear DTC.
3. Operate the vehicle within the enable condition and monitor the DTC on the GDS.
4. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

ETM

For wiring diagram information, refer to appropriate SYSTEM WIRING DIAGRAMS article.

Scheme 205

Information related immobilizer, that are classified as 2 (two) parts independently, is memorized in EEPROM. PCM check these 2 (two) information before proceeding immobilizer authentication. With synchronized both information, PCM starts immobilizer authentication procedure. If both information is not synchronized, PCM stops immobilizer authentication, Limp home function will not be activated, and memorizes DTC P1695. If DTC P1695 is retrieved again, after performing new key teaching procedure, PCM should be replaced with new one.

If key/password information in PCM is not matching or there is write error on EEPROM as hardware, DTC P1696 is set.

Scheme 206

Scheme 207

1. IG KEY "ON" & Engine "OFF".
2. Erase DTC after connecting GDS.
3. Check Smart key status in "Vehicle S/W Management", if DTC is retrieved.
4. Is the smart Key PCM learnt? YES Neutralize the PCM after erasing the DTC with GDS. Check that system is normal after checking the DTC again. (If the DTC is set again, replace PCM) Wait for more than 1 min. with IG ON so that smart key PCM register PIN into Engine PCM automatically. NO Perform key teaching procedure after replacing PCM and then, go to " «VERIFICATION OF VEHICLE REPAIR»(/hyundai/santa-fe/iii-2012-2016/remont/door-locks-anti-theft-systems/#smart-key-code-saving-system-diagnosis) " Procedure. NOTE: PIN code is programmed in Smart key PCM, Transponder. If the Smart key PCM is not registered with PIN, key teaching process is not proceeded. Registering PIN is available after Smart Key PCM is neutralized. Neutralization of Engine PCM is available with GDS (Registering PIN code) If the virgin engine PCM is installed on vehicle, Engine PCM is automatically programmed PIN code by Smart Key PCM. Registering PIN code is only possible for virgin or neutralized status. All Learning procedure is able to do with a GDS in the vehicle's ignition key off state. Smart Key PCM Learning Before learning procedure for FOB Key, Smart Key PCM should be registered PIN code first. In case of replacing Smart Key PCM, All of the keys should be newly registered again. In case that Smart Key PCM receives 3 times with wrong PIN, It is not allowed for neutralization and Key Teaching for 1 hour. If the battery is discharged during neutralization or Teaching, Timer will start again from beginning. Therefore, it is avoidable to wait for 1 hour.

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

1. Connect GDS and check "No. of Key learnt, PCM status and Smartkey PCM" status.
2. Select "Diagnostic Trouble Codes (DTC)" mode and then clear DTC.
3. Operate the vehicle within the enable condition and monitor the DTC on the GDS.
4. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

Scheme 208

The smart key system is totally composed of a smart key module, a power distribute mode, an external receiver and a smart key holder. The SMK 2.5, the smartkey system which has not Fob holder, is embed with a Demodulator. so the two Immo coil lines are connected this SSB. Smart key units sends a certified signal to the PCM through this process and then takes the engine to start by receiving the permission signal of engine start.

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

Scheme 209

1. IG KEY "ON" & Engine "OFF".
2. Erase DTC after connecting GDS.
3. Check Smart key status in "Vehicle S/W Management", if DTC is retrieved.
4. Is the Smart key PCM learnt status? YES Fault is intermittent caused by poor contact in Smart key PCM and/or PCM's connector or was repaired and Smart key PCM 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»(/hyundai/santa-fe/iii-2012-2016/remont/door-locks-anti-theft-systems/#smart-key-code-saving-system-diagnosis) " procedure. NO Go to " «COMPONENT INSPECTION»(/hyundai/santa-fe/iii-2012-2016/remont/door-locks-anti-theft-systems/#smart-key-code-saving-system-diagnosis) " procedure.

Scheme 210

1. Check Smart Key PCM Inspection IG KEY "ON" & Engine "OFF". Neutralize smart key PCM with GDS. Perform key teaching procedure for smart key PCM with GDS. CAUTION: Pin code must be prepared to Neutralize Smart Key PCM and to perform key teaching procedure. Is the neutralization of Smart Key PCM, Engine PCM and key teaching normal? YES Fault is intermittent caused by poor contact in Smart Key PCM and/or PCM's connector or was repaired and Smart key PCM 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»(/hyundai/santa-fe/iii-2012-2016/remont/door-locks-anti-theft-systems/#smart-key-code-saving-system-diagnosis) " procedure. NO Substitute with a known-good Smart Key PCM and check for proper operation. If the problem is corrected, replace Smart Key PCM and then go to " «VERIFICATION OF VEHICLE REPAIR»(/hyundai/santa-fe/iii-2012-2016/remont/door-locks-anti-theft-systems/#smart-key-code-saving-system-diagnosis) " procedure. NOTE: PIN code is programmed in Smart key PCM, Transponder. If the Smart key PCM is not registered with PIN, key teaching process is not proceeded. Registering PIN is available after Smart Key PCM is neutralized. Neutralization of Engine PCM is available with GDS (Registering PIN code) If the virgin engine PCM is installed on vehicle, Engine PCM is automatically programmed PIN code by Smart Key PCM. Registering PIN code is only possible for virgin or neutralized status. All Learning procedure is able to do with a GDS in the vehicle's ignition key off state. Smart Key PCM Learning Before learning procedure for FOB Key, Smart Key PCM should be registered PIN code first. In case of replacing Smart Key PCM, All of the keys should be newly registered again. In case that Smart Key PCM receives 3 times with wrong PIN, It is not allowed for neutralization and Key Teaching for 1 hour. If the battery is discharged during neutralization or Teaching, Timer will start again from beginning. Therefore, it is avoidable to wait for 1 hour.

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

1. Connect GDS and check "PCM status and Smartkey PCM status, which is in the IPM"
2. Select "Diagnostic Trouble Codes (DTC)" mode and then clear DTC.
3. Operate the vehicle within the enable condition and monitor the DTC on the GDS.
4. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

Scheme 211

This is special function that engine can be started for moving to an area where the key learning is processed with twice IG ON. This function is only performed in condition that Engine EMS, Smart key PCM, Transponder, are all virgin status.

Engine can be started by the sequence.

1. Ignition ON with no cranking, Ignition OFF, Ignition ON with cranking within a time interval
2. The following timing conditions have to be fulfilled for successful start: PCM, Smart key PCM, Transponder are all virgin status First Ignition ON more than 0.5 seconds and less than 1.5 seconds. Ignition OFF time is limited by the minimum of 0.2 seconds and the maximum of 1.5 seconds. Ignition ON. The number of engine starts by "twice ignition on" is limited. The maximum value is 32 times regardless of cranking.

DTC P1699 is set if twice ignition ON exceeds maximum limit over 32 times.

Scheme 212

Scheme 213

1. IG KEY "ON" & Engine "OFF".
2. Connect GDS and select ID Register
3. Check Smart key status in "Vehicle S/W Management", if DTC is retrieved.
4. Is the Smart key PCM learnt status? YES Wait for 1 hour until PCM status is unlock with IG ON. After PCM status is unlock, perform the key teaching procedure. Finally, go to " «VERIFICATION OF VEHICLE REPAIR»(/hyundai/santa-fe/iii-2012-2016/remont/door-locks-anti-theft-systems/#smart-key-code-saving-system-diagnosis) " procedure. NO Fault is intermittent caused by poor contact in Smart Key PCM and/or PCM's connector or was repaired and Smart key PCM 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»(/hyundai/santa-fe/iii-2012-2016/remont/door-locks-anti-theft-systems/#smart-key-code-saving-system-diagnosis) " procedure. NOTE: PIN code is programmed in Smart key PCM, Transponder. If the Smart key PCM is not registered with PIN, key teaching process is not proceeded. Registering PIN is available after Smart Key PCM is neutralized. Neutralization of Engine PCM is available with GDS (Registering PIN code) If the virgin engine PCM is installed on vehicle, Engine PCM is automatically programmed PIN code by Smart Key PCM. Registering PIN code is only possible for virgin or neutralized status. All Learning procedure is able to do with a GDS in the vehicle's ignition key off state. Smart Key PCM Learning Before learning procedure for FOB Key, Smart Key PCM should be registered PIN code first. In case of replacing Smart Key PCM, All of the keys should be newly registered again. In case that Smart Key PCM receives 3 times with wrong PIN, It is not allowed for neutralization and Key Teaching for 1 hour. If the battery is discharged during neutralization or Teaching, Timer will start again from beginning. Therefore, it is avoidable to wait for 1 hour.

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

1. Connect GDS and check "No. of Key learnt, PCM status and Smartkey PCM" status.
2. Select "Diagnostic Trouble Codes (DTC)" mode and then clear DTC.
3. Operate the vehicle within the enable condition and monitor the DTC on the GDS.
4. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

See also:
• DTC P1676
• VERIFICATION OF VEHICLE REPAIR
• SIGNAL CIRCUIT INSPECTION