Scan Tool Testing and Procedures
STEERING COLUMN: STEERING LOCK SYSTEM: DATA LIST / ACTIVE TEST
1. READ DATA LIST
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.
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.
(a) Turn the engine switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG).
(d) Turn the Techstream on.
(e) Enter the following menus: Body Electrical / (desired system) / Data List.
(f) According to the display on the Techstream, read the Data List.
(g) Using the Techstream, confirm the Data List items to help determine the cause of the problem.
NOTICE:
* The steering lock ECU communicates with the Techstream through the certification ECU (smart key ECU assembly) which uses CAN communication. If the CAN communication system or certification ECU (smart key ECU assembly) is malfunctioning, Data List items may not be normal.
* When using the Techstream with the engine switch off, perform either of the following: 1) Turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and vehicle begins, or 2) connect the Techstream to the vehicle, select the vehicle type under manual mode, and then enter the following menus: Body Electrical / Smart Key / Data List.
Power Source Control
* *: for Automatic Transaxle
Smart Key
HINT
Unlock operation conditions for the steering lock:
When the following condition is met, the unlock operation is performed:
The engine switch is on (ACC) or on (IG).
* When the engine switch is turned on (ACC) or on (IG) and the electrical key transmitter and certification ECU (smart key ECU assembly) are verified, the steering is unlocked.
When any of the following conditions is met, verification is performed.
* The brake pedal (for Automatic Transaxle) or clutch pedal (for Manual Transaxle) is depressed so that the engine can be started.
* 30 seconds elapse after opening and closing a door.
* The engine switch is pressed.
Verification occurs when the code emitted from the electrical key transmitter and the code stored in the certification ECU (smart key ECU assembly) are compared to check that they match.
Certification ECU (smart key ECU assembly) verification occurs when the S code and L code are verified while the engine is being started or the engine switch is being pushed. The ID code box (immobiliser code ECU) uses the S code to determine whether the certification ECU (smart key ECU assembly) is authorized. The steering lock ECU uses the L code to determine whether the ID code box (immobiliser code ECU) is authorized.
Lock operation conditions for the steering lock:
When the following conditions are met and the certification ECU (smart key ECU assembly) has been verified, the lock operation is performed.
* The engine switch is off.
* The shift lever is in P (for Automatic Transaxle).
* A door is opened or a door lock operation (entry door lock, wireless door lock or key-linked lock) is performed.
HINT
The following example shows the behavior of various Data List items when the shift lever is in P (for Automatic Transaxle), the brake pedal (for Automatic Transaxle) or clutch pedal (for Manual Transaxle) is not depressed, the vehicle is normal and the power source mode changes.
HINT
Get into the vehicle while carrying the electrical key transmitter. With the engine switch off, the shift lever in P (for Automatic Transaxle) and all the doors closed, perform the following procedures and check the power source mode.
*1: Without depressing the brake pedal (for Automatic Transaxle) or clutch pedal (for Manual Transaxle), press the engine switch and check that the power source mode turns on (ACC).
*2: Without depressing the brake pedal (for Automatic Transaxle) or clutch pedal (for Manual Transaxle), press the engine switch and check that the power source mode turns on (IG).
*3: Press the engine switch and check that the power source mode turns off.
*4: Without depressing the brake pedal (for Automatic Transaxle) or clutch pedal (for Manual Transaxle), open the driver side door and check that the steering locks.
Main Body
