Hyundai Santa Fe (2006 year). Manual — part 204

IMMOBILIZER CONTROL SYSTEM

BE -277

DTC P1695 EMS MEMORY ERROR

COMPONENT LOCATION

E786EAFF

Refer to DTC P1610.

GENERAL DESCRIPTION

EDFD08C5

The relevant data for the immobilizer function are stored at permanent memory (EEPROM or Flash etc.).
The immobilizer data are stored by three independent entries.
The data from EEPROM are evaluated by ?2 of 3 decision“ . That means all three entries are read and the content is
compared before authentication process.
If the contents of all entries are equal, the authentication will run without additional measures.
If only the contents of two entries are equal, the authentication will run and fault code "EEPROM defective" is stored at
ECM.
If the contents of all three entries are different from each other, no authentication will be possible and the fault code
"EEPROM defective" will be stored. The limp home function cannot be activated. The ECM shall be replaced if the
EEPROM related fault occurs again after new teaching of all keys.

DTC DESCRIPTION

EE7F16B5

The ECM sets DTC P1694 if there’s any fault in EMS internal permanent memory(EEPROM or Flash etc.

DTC DETECTING CONDITION

EC4D1C22

Item

Detecting Condition

Possible Cause

DTC Strategy

Enable Conditions

• IG ON

Threshold value

Detecting time

FAIL SAFE

• Faulty EMS

SCHEMATIC DIAGRAM

EAA3850E

Refer to DTC P1610.

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BODY ELECTRICAL SYSTEM

COMPONENT INSPECTION

E6FAC11A

1.

Check transponder and ECU status

1)

IGN "ON" ＆ Engine "OFF"

2)

Monitor the "KEY STATUS" and "ECU STATUS’ Parameter on the Scantool.

Specification : ’LEARNT’

1.1 CURRENT DATA

FIX

SCRN FULL

PART GRPH HELP

01. NO. OF LEARNT KEY

02. ECU STATUS

03. KEY STATUS

Fig 1

Fig 1) The current data in abnormal state

1

LEARNT

LEARNT

SCMBE6752L

3)

Are "KEY STATUS" and "ECU STATUS’ Parameter 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

Go to "Check transponder" procedure

IMMOBILIZER CONTROL SYSTEM

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2.

Check ECM

1)

IGN "ON" ＆ Engine "OFF"

2)

Neutralize ECM and Register transponder key by scantool.

NOTE

Pin code is requied to Neutralize ECM and to Register transponder key

3)

Are Neutralizing and Registering completed normally?

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 ECM and check for proper operation.
If the problem is corrected, replace ECM and then go to "Verification of Vehicle Repair" procedure.

NOTE

ECM substitued for old one must be in "Virgin" or "Neutral" status and Pin code is requied to Neutralize ECM and to
Register transponder key

VERIFICATION OF VEHICLE REPAIR

EB801803

Refer to DTC P1610.

BE -280

BODY ELECTRICAL SYSTEM

DTC P1696 AUTHENTICATION FAIL

COMPONENT LOCATION

E5AAB3B2

Refer to DTC P1674.

GENERAL DESCRIPTION

EBF9D3EB

Refer to DTC P1674.

DTC DESCRIPTION

E3D110D8

The ECM sets DTC P1696 if invaild key is inserted into key hole for Authentication.

DTC DETECTING CONDITION

EFEFC47A

Item

Detecting Condition

Possible Cause

DTC Strategy

Enable Conditions

• IG ON

Threshold value

Detecting time

FAIL SAFE

• Virgin TP at EMS status

"Learnt"

• Learnt(Invalid) TP at EMS

status "Learnt"

SCHEMATIC DIAGRAM

E481B11B

Refer to DTC P1610.