Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Work Flow
- LISTEN TO CUSTOMER COMPLAINT OR REQUEST
Get symptoms or listen to customer complaints or request.
NOTE: In case of request for Intelligent Key or IVIS (NATS) system repair, the key ID re-registration might be necessary. Keep all the Intelligent Keys before work for the re-registration.Key ID registration request >> Resister Intelligent Key by referring to Technical Bulletin.
Request for malfunction repair.: GO TO 2.
- CHECK DOOR LOCK AND REMOTE KEYLESS ENTRY FUNCTION
Check that Door Lock and remote control function of Intelligent Key operate normally.
Door Lock or remote keyless entry function is malfunctioning. >> Malfunction of Door Lock and remote control function, Refer to "INTELLIGENT KEY SYSTEM ".
Door Lock and remote keyless entry function are normal.: GO TO 3.
- CONFIRMATION BEFORE DIAGNOSIS
Before performing diagnostic procedure, grasp the operating systems with referring to the items below.
- "System operation with carrying Intelligent Key". Refer to "OPERATION WHEN INTELLIGENT KEY IS CARRIED ".
- "System operation by using Key slot". Refer to "OPERATION WHEN KEY SLOT IS USED ".
>> GO TO 4.
- CONFIRM SELF DIAGNOSIS 1
Start CONSULT-II with Push-button ignition switch in lock position and confirm SELF DIAG RESULT "Intelligent Key". Refer to "CONSULT-II Inspection Procedure ".
No malfunction: GO TO 5.
Malfunction exist >> Repair the items displayed in "SELF DIAG RESULTS". Refer to "SELF-DIAGNOSTIC RESULTS ".
- CONFIRM SELF DIAGNOSIS 2
Start CONSULT-II with Push-button ignition switch in lock position and confirm SELF DIAG RESULTS "NATS BCM or S/ENT" and "NATS I-KEY". Refer to "CONSULT-II INSPECTION PROCEDURE ".
NOTE: NATS program card is necessary to display "SELF DIAG RESULTS".No malfunction: GO TO 6.
Malfunction exist >> Repair the items displayed in "SELF DIAG RESULTS". Refer to "NATS BCM OR S/ENT" SELF-DIAGNOSTIC RESULTS ITEM CHART " and "NATS I-KEY" SELF-DIAGNOSTIC RESULTS ITEM CHART ".
- CHECK INTELLIGENT KEY FUNCTION
Operate Push-button ignition switch with carrying Intelligent Key to check the power source position can be turned with all of the Intelligent Keys.
CAUTION: Operate Push-button ignition switch without depressing the brake pedal.Can be operated with all of the Intelligent Keys: GO TO 7.
Can not be operated with particular Intelligent Key >> Check the malfunctioning Intelligent Key. Refer to "INTELLIGENT KEY BATTERY INSPECTION ".
Can not be operated with any of the Intelligent Keys >> Perform Diagnostic Procedure. Refer to "TROUBLE DIAGNOSIS SYMPTOM CHART 1 ".
- CHECK TURNING TIMING OF POWER SOURCE POSITION 1
Check the power source turning delay time after Push-button ignition switch is pushed. (Approx. 3 sec)
CAUTION: Operate Push-button ignition switch without depressing the brake pedal.No delay time exists: GO TO 8.
Delay time exists >> Perform Diagnostic Procedure. Refer to "TROUBLE DIAGNOSIS SYMPTOM CHART 2 ".
- CHECK TURNING TIMING OF POWER SOURCE POSITION 2
Check all the Intelligent Keys for power source turning delay time after Push-button ignition switch is pushed with Intelligent Key inserted into key slot. (Approx. 3 sec)
CAUTION: Operate Push-button ignition switch without depressing the brake pedal.No delay time exists: GO TO 9.
Delay time exists when operated with particular Intelligent Key. >> Perform "C/U INITIALIZATION" referring to CONSULT-II operation manual IVIS/NVIS NATS. In case that delay time still exists after the initialization, replace the Intelligent Key.
Delay time exists when operated with any of the Intelligent Keys. >> Perform Diagnostic Procedure. Refer to "TROUBLE DIAGNOSIS SYMPTOM CHART 3 ".
- CHECK ENGINE START FUNCTION
Check that engine can be started with Intelligent Key carried and inserted into the key slot respectively.
Engine can be started.: GO TO 10.
Engine cannot be started. >> Inspect Trouble Diagnosis Flow Chart for IVIS (NATS). Refer to "TROUBLE DIAGNOSES FLOW CHART FOR IVIS (NATS) ".
- CHECK SECURITY INDICATOR FUNCTION
Check Security Indicator for lighting up under the two conditions below.
- Security Indicator lights off when Push-button ignition switch is pushed with Intelligent Key inserted into or pulled out of the key slot.
- Security Indicator blinks when Intelligent Key is pulled out and Push-button ignition switch is in lock position.
Lighting up condition is normal. >> Inspection END.
Lighting up condition is malfunctioning. >> Perform Security Indicator Inspection. Refer to "CHECK SECURITY INDICATOR HARNESS ".
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.