FOREWORD [IMMOBILIZER SYSTEM]

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• If there is any vehicle malfunction complaint lodged by a customer, perform malfunction diagnosis according to the troubleshooting procedure. (See Troubleshooting Procedure.)

Note

• If any of the following items are touching or near the remote transmitter, signal communication between the remote transmitter and the vehicle is negatively affected, resulting in the engine not starting.

― Spare keys

― Keys for other vehicles equipped with an immobilizer system

― Any metallic object

― Any electronic device, or any credit or other card with magnetic strips

― Radio wave outputting device nearby

Troubleshooting Procedure

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*1 :(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5, SKYACTIV-D 2.2 (MTX)].) (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [SKYACTIV-D 2.2 (ATX), MZR 1.6].) (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [SKYACTIV-D 1.5].)

*2 :(See DTC Inspection Note.)

Action for Non-repeatable Malfunction

• If the malfunction does not recur, verify the malfunction cause by performing the following actions:

― Verify that a DTC has been recorded in the memory. (See DTC INSPECTION [IMMOBILIZER SYSTEM].)

― Based on the repair order form, attempt to drive the vehicle or perform tests to replicate the malfunction, record the data at that time, and detect the malfunction cause.

― Shake the wiring harness or connector of the electrical component which is suspected to be the cause of the malfunction, and inspect for malfunction or occurrence of any DTCs.

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― Inspect the female terminals on the connector of the electric component which is suspected to be the cause of the malfunction for poor connection.

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DTC Inspection Note

• When there is a malfunction in the immobilizer system, DTCs are recorded in the start stop unit and PCM.

• The DTCs stored in the start stop unit can be verified using the flashing pattern of the security indicator light and M-MDS.

• If immobilizer system DTCs are not recorded even if the engine cannot be started, perform symptom troubleshooting. (See NO.3 WILL NOT CRANK [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NO.9 WILL NOT CRANK [SKYACTIV-D 1.5].) (See NO.9 WILL NOT CRANK [SKYACTIV-D 2.2].) (See NO.3 WILL NOT CRANK [MZR 1.6].)