ENGINE IMMOBILISER SYSTEM (w/ Smart Entry and Start System) DATA LIST / ACTIVE TEST


  1. READ DATA LIST

    Tech Tips

    Using the intelligent tester to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the tester on.

    4. Read the Data List according to the display on the tester.

    Smart Key (Certification ECU (Smart Key ECU Assembly)):
    Tester Display Measurement Item/Range Normal Condition Diagnostic Note
    Ignition Switch Engine switch on (IG) signal / ON or OFF

    ON: Engine switch on (ACC, IG) or engine started

    OFF: Engine switch off

    		 -
    ACC Switch Engine switch on (ACC) signal / ON or OFF

    ON: Engine switch on (ACC, IG) or engine started

    OFF: Engine switch off

    		 -
    Immobiliser Immobiliser system status / SET or UNSET

    SET: Key is not in cabin

    UNSET: Key is in cabin

    		 -
    Master Key Master key code signal / MATCH or NO MATCH

    MATCH: Master key code is sent

    NO MATCH: Unmatched master key code is sent

    		 -
    Sub Key Sub-key (Master key) code signal / MATCH or NO MATCH

    MATCH: Sub-key (master key) code is sent

    NO MATCH: Unmatched sub-key (master key) code is sent

    		 -
    BCC Malfunction Transponder chip signal / OK or NG

    OK: Correct data sent

    NG: Incorrect data sent

    		 -
    Abnormal Status Transponder chip data / OK or NG

    OK: Data OK

    NG: Data error

    		 -
    Different Encrypt Code Transponder chip signal / OK or NG

    OK: Correct data sent

    NG: Incorrect data sent

    		 -
    Different Serial Number Transponder chip signal / OK or NG

    OK: Correct data sent

    NG: Incorrect data sent

    		 -
    Frame Error Transponder chip signal / OK or NG

    OK: Correct data sent

    NG: Incorrect data sent

    		 -
    Response Transponder chip signal / OK or NG

    OK: Correct data sent

    NG: Incorrect data sent

    		 -

  2. PERFORM ACTIVE TEST

    Tech Tips

    Using the intelligent tester to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the tester on.

    4. Perform the Active Test by following the directions on the tester screen.

    Smart Key (Certification ECU (Smart Key ECU Assembly)):
    Tester Display Test Part Control Range Diagnostic Note
    Security Indic Security indicator light ON/OFF -