Engine Immobilizer System
THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: DATA LIST / ACTIVE TEST
1. DATA LIST
NOTICE:
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
HINT
Using the Techstream 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.
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Smart Access / Data List.
(e) According to the display on the Techstream, read the Data List.
Smart Access
HINT
* *1: This indicates that there is a problem with the communication format between the key and certification ECU. Electric wave interference, key or certification ECU malfunctions, the key of another vehicle being used, etc. are possible causes.
* *2: Engine start is permitted when it is confirmed that the steering is unlocked and there are no malfunctions in the steering lock system. If engine start is not permitted, a steering lock ECU malfunction (relay, driver, etc.), an IGE circuit malfunction (harness or connector, power management control ECU), or a steering lock sensor malfunction are possible causes.
* *3: This indicates that transmission of the wake-up signal is possible ("Yes" indicates that the signal to begin verification-related LIN communication is being sent). When the steering lock motor is operating and an IGE ON signal is received (there is a steering lock operation request), or when communication is being performed between the ID code box and ECM, the display changes to "Yes".
* *4: This indicates that the engine start permission request signal (EGST) output from the certification ECU is being received by the ID code box.
* *5: This indicates the certification results of the certification codes of the certification ECU and ID code box.
* *6: This indicates the certification results of the certification codes of the steering lock ECU and ID code box.
When the steering lock ECU receives an unlock request from the certification ECU, confirmation of the ID code box L code is performed. If the L code matches, the steering lock ECU unlocks the steering. Also, if the S code verification result does not match, the steering lock will not be unlocked.
* *7: The certification ECU outputs a steering lock unlock request for 10 seconds after the engine switch is turned on (ACC) or on (IG), or an engine start operation is performed.
* *8: The certification ECU outputs a steering lock lock request for 10 seconds after the engine switch is turned off and any door is opened with the shift lever in P.
* *9: This indicates that the ID code box is receiving verification information from the ECM. If the ECM can send the information, the display changes to "OK".
* *10: Please refer to the following Data List of the actual vehicle.
With the engine switch off and the shift lever in P, perform the following procedures and check the power source mode.
* *1: Without depressing the brake pedal, press the engine switch and check that the power source mode turns on (ACC).
* *2: Without depressing the brake pedal, press the engine switch and check that the power source mode turns on (IG).
* *3: Depress the brake pedal (the stop light switch turns on).
* *4: Press the engine switch and check that the power source mode turns off.
* *5: Door is opened (steering lock operation starts when door is opened).
2. ACTIVE TEST
HINT
Using the Techstream 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.
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Smart Access / Active Test.
(e) According to the display on the Techstream, perform the Active Test.
Smart Access
