Hyundai Santa Fe (2006 year). Manual — part 197
IMMOBILIZER CONTROL SYSTEM
BE -249
DTC P1674 TRANSPONDER STATUS ERROR
COMPONENT LOCATION
E16E69B2
Transponder
SCMBE6750L
GENERAL DESCRIPTION
E41DDC6B
During the key teaching procedure the transponder will be programmed with vehicle specific data. The vehicle specific
data are written into the transponder memory. The write procedure is unique; therefore the content of transponder can
never be modified or changed. The data are a string of 9 bytes defined by vehicle manufacturer.
The transponder memory is split into two strings called authenticator and key password After this programming the
transponder memory is locked and the data(PIN code) cannot be read or changed respectively. The transponder status
changes from "virgin" to "learnt". Additionally every transponder includes a unique IDE (Identifier number) of 32 bit.
Unique means that the IDE of all transponder is different from each other. The IDE is programmed by the transponder
manufacturer and is a read-only value. The authenticator and the key password are not transferred from ECM to transpon-
der or vice versa. Only the results from the encryption algorithm are transferred. It is almost impossible to calculate the
vehicle specific data from the encryption result.
For teaching of keys and special purposes the ECM is connected to the tester device.
When IG is ON, the coil supplies energy to the transponder which in turn accumulates energy in the condenser.
Once the energy supply from the coil has stopped, using the stored energy in the condenser, the transponder transmits
the ID CODE (stored within the ASIC).
DTC DESCRIPTION
E4CEBDC2
The ECM sets DTC P1674 if transponder key that can’t be register(TP not in the password mode or whose transport data
has been changed) is inserted for registration procedure.
DTC DETECTING CONDITION
ED14DFB8
Item
Detecting Condition
Possible Cause
DTC Strategy
Enable Conditions
• IG ON (On Registering TP Procedure)
Threshold value
Detecting time
FAIL SAFE
• Invalid transponder.
※ Key not in ’VIRGIN’
Status or with invalid
ID code
BE -250
BODY ELECTRICAL SYSTEM
SCHEMATIC DIAGRAM
ECFBA039
Refer to DTC P1610.
MONITOR DTC STATUS
EF4076FD
1.
Connect scantool to Data Link Connector(DLC).
2.
Ignition "ON" & engine "OFF".
3.
Selet "Diagnostic Trouble Codes(DTCs)"mode and monitor "DTC Status" parameter
4.
Is the DTC B1674 present?
YES
Go to "Inspection & Repair" procedure.
NO
Fault is intermittent caused by poor contact in SMARTRA’s and/or ECM’s connector or was repaired and 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.
IMMOBILIZER CONTROL SYSTEM
BE -251
COMPONENT INSPECTION
EBEBD049
1.
Check transponder status
1)
IGN "ON" & Engine "OFF" with key intended to register.
2)
Monitor the "KEY STATUS" Parameter on the Scantool.
Specification : ’VIRGIN’ or ’LEARNT’
1.1 CURRENT DATA
FIX
SCRN FULL
PART GRPH HELP
01. NO. OF LEARNT KEY
02. ECU STATUS
03. KEY STATUS
1.1 CURRENT DATA
FIX
SCRN FULL
PART GRPH HELP
1
LEARNT
INVALID
01. NO. OF LEARNT KEY
02. ECU STATUS
03. KEY STATUS
Fig 1
Fig 1) The current data in abnormal state
1
LEARNT
NOT CHECK
SCMBE6751L
3)
Is the measured voltage within specifications?
YES
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.
NO
Substitute with a known-good transponder and check for proper operation.
If the problem is corrected, replace transponder and then go to "Verification of Vehicle Repair" procedure.
VERIFICATION OF VEHICLE REPAIR
EEC1748B
Refer to DTC P1610.
BE -252
BODY ELECTRICAL SYSTEM
DTC P1675 TRANSPONDER PROGRAMMING ERROR
COMPONENT LOCATION
E0EFE3BC
Refer to DTC P1674.
GENERAL DESCRIPTION
EC6C260F
Refer to DTC P1674.
DTC DESCRIPTION
EE5B821B
The ECM sets DTC P1675 if characteristic data of transponder doesn’t coincide with that of ECM owing to transponder
programming error.
DTC DETECTING CONDITION
EF9A9CD1
Item
Detecting Condition
Possible Cause
DTC Strategy
Enable Conditions
• IG ON
Threshold value
Detecting time
FAIL SAFE
• Invalid transponder.
※ Invalid characteristic
data
※ No transponder
or more than two
transponder is
detected by coil
antenna.
SCHEMATIC DIAGRAM
E5A3794F
Refer to DTC P1610.
MONITOR DTC STATUS
E9EAAB24
1.
Connect scantool to Data Link Connector(DLC).
2.
Ignition "ON" & engine "OFF".
3.
Selet "Diagnostic Trouble Codes(DTCs)"mode and monitor "DTC Status" parameter
4.
Is the DTC B1675 present?
YES
Go to "Inspection & Repair" procedure.
NO
Fault is intermittent caused by poor contact in SMARTRA’s and/or ECM’s connector or was repaired and 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.
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