ELECTRICAL 156 25.2 IMMOBILIZER SYSTEM STATUS IN EMS ECU The information given in table below is the status of Immobilizer system in EMS & it can be accessed by steps given below. STEPS 1. Connect the EMS ECU diagnostic tester to the Diagnostic connector in the vehicle 2. Start the communication 3. Go to “Engine parameter” 4. Select “Electronic key” and press “Start” 5. . The diagnostic tester will show the following (A) This is valid for 2.0 L FIAT DIESEL engine EMS ECU’s No. Text indicted Condition Description Normal/ Abnormal 1 Immobilizer programmed in EMS - EMS ECU software is Immobilizer enabled Normal Virgin ECU - - Abnormal 2 Engine starting enabled by EMS Original E-Key in SCL Vehicle Ready to start Normal Engine starting disabled by EMS No/wrong E-Key in SCL Vehicle will not start Abnormal 3 Immobilizer code programmed in EMS but not locked Pairing operation not done properly AES key is written in to EMS but not locked Abnormal (displayed only if exists) 4 Immobilizer code programmed in EMS and locked Pairing operation OK AES key is written in to EMS and locked. Normal 5 Fast restart inactive - - - 6 Key code OK / Authentication OK Successful authentication & AES key is OK AES key for EMS ECU & Immobilizer are same Normal No Valid key detected/ bad Authentication Check the DTC code Vehicle will not start Abnormal 7 Free start inactive - After pairing of EMS ECU & Immobilizer, the free starts are inactive Normal 8 Immobilizer CAN communication CAN OFF/BUS OFF Refer immobilizer section CAN communication error (bus off/mute) Abnormal Immobilizer CAN communication “OK” - - Normal
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