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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 power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Smart Key / Data List.

(e) According to the display on the Techstream, read the Data List.

Smart Key (Certification ECU (Smart Key ECU Assembly))

















HINT
* *1: This indicates that there is a problem with the communication format between the key and certification ECU (smart key ECU assembly). Wave interference, key or certification ECU (smart key ECU assembly) malfunctions, the key of another vehicle being used, etc. are possible causes.
* *2: Hybrid control system start is permitted when it is confirmed that the steering is unlocked and there are no malfunctions in the steering lock system. If hybrid control system start is not permitted, a steering lock ECU (steering lock actuator assembly) 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 certification ECU (smart key ECU assembly) and power management control ECU, the display changes to "Yes".
* *4: This indicates that the hybrid control system start permission request signal (EGST) output from the power management control ECU is being received by the certification ECU (smart key ECU assembly).
* *5: This indicates the certification results of the certification codes of the steering lock ECU (steering lock actuator assembly) and certification ECU (smart key ECU assembly).
When the steering lock ECU (steering lock actuator assembly) receives an unlock request from the certification ECU (smart key ECU assembly), confirmation of the certification ECU (smart key ECU assembly) L code is performed. If the L code matches, the steering lock ECU (steering lock actuator assembly) unlocks the steering.
* *6: The certification ECU (smart key ECU assembly) outputs a steering unlock request for 10 seconds after the power switch is turned on (ACC) or on (IG), or a hybrid control system start operation is performed.
* *7: The certification ECU (smart key ECU assembly) outputs a steering lock request for 10 seconds after the power switch is turned off and any door is opened with the shift lever in P.
* *8: This indicates that the certification ECU (smart key ECU assembly) is receiving verification information from the power management control ECU. If the power management control ECU can send the information, the display changes to "OK".
* *9: Please refer to the following Data List of the actual vehicle.





With the power 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 power switch and check that the power source mode turns on (ACC).
* *2: Without depressing the brake pedal, press the power switch and check that the power source mode turns on (IG).
* *3: While depressing the brake pedal, press the power switch and check that the hybrid control system starts.
* *4: Press the power 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 power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Smart Key / Active Test.

(e) According to the display on the Techstream, perform the Active Test.

Smart Key (Certification ECU (Smart Key ECU Assembly))





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