Repair Instruction - Initialization
INITIALIZATIONNOTE: When disconnecting the cable from negative (-) battery terminal, initialize the following system(s) after the terminal is reconnected.
The initialization procedures are as given.
System Name
Power Window Control System
Sliding Roof System
Clearance Sonar System
Variable Gear Ratio Steering System
1. RESET (INITIALIZE) POWER WINDOW REGULATOR MOTOR
NOTE: The power window regulator motor (initializing the pulse sensor) must be reset if: 1) the battery cable has been disconnected; 2) the power window regulator master switch, wire harness, power window regulator switch, window regulator, or power window regulator motor are replaced or removed / installed; or 3) the DC/DC or MPX-B fuses are replaced. If resetting is not performed, the master switch will not be able to operate the AUTO operation function, jam protection function and remote UP / DOWN function.
a. Turn the engine switch on (IG).
b. Open the power window halfway by pressing the power window switch.
c. Fully pull up the switch until the power window is fully closed and continue to hold the switch for at least 1 second.
d. Check that the AUTO UP / DOWN function operates normally.
HINT: If the AUTO UP / DOWN function operates normally, reset operations are completed. If abnormal, perform the 2 steps.
e. Disconnect the cable from the negative (-) battery terminal for 10 seconds or more.
f. Reconnect the cable.
g. Repeat the first 4 steps of resetting the power window regulator motor.
HINT: If the remote UP / DOWN function does not operate after the conditions 1), 2), or 3) is satisfied, the power window regulator master switch may have a malfunction.
2. RESET SLIDING ROOF DRIVE GEAR SUBASSEMBLY
NOTE: When disconnecting the cable from the negative (-) battery terminal, or disconnecting the sliding roof drive gear or connector, sliding roof drive gear requires initialization of the pulse sensor. If a reset is not executed, the following functions do not operate: auto operation, jam protection function, key off operation, key-linked open and close, transmitter-linked open and close.
a. Turn the engine switch on (IG).
b. If the sliding roof is opened, close it fully.
c. Push the open switch of the slide switch or the up switch of the tilt switch on the personal light, making the sliding roof operation as follows:
Tilt up -> Approximately 1 second -> tilt down -> slide open -> slide close
d. Sliding roof stops at the fully closed position.
e. Finish the initialization.
f. Check that the operation works normally with AUTO operation.
NOTE: If the following conditions occur while operating, initialization will fail.
- Engine switch is turned off.
- Pushed switch is released while sliding roof is operating.
- Vehicle speed is 5 km/h (3 mph) or more.
- Battery of sliding roof ECU is 1 V or higher.
- Communication is cut off.
3. RESET CLEARANCE SONAR SYSTEM
HINT:
- If the sliding roof cannot fully close or its position has become misaligned, perform the initialization again.
- If the sliding roof TILT UP switch or SLIDE CLOSE switch is pressed and held until the roof glass has either stopped moving or started moving in the opposite direction, and then the switch is held for another 10 seconds or more, perform the initialization again.
- If the AUTO operation function and jam protection function do not operate after the drive gear has been reset, replace the sliding roof drive gear (sliding roof ECU).
HINT: The mid-point learning operation (steering angle midpoint, maximum steering angle) can be performed using 4 methods:
a. Method 1 (Intelligent tester)
1. Turn the engine switch off.
2. Connect the intelligent tester to the DLC3.
3. Turn the engine switch on (IG) and push the intelligent tester main switch on.
4. Select the following "DIAGNOSIS / OBD".
5. Perform the STEERING INIT procedure from the CLEARANCE SONAR menu.
1. Tester screen flow:
b. Method 2 (Manual operation method)
1. Using customize mode, set the mid-point and maximum steering angle.
*1: Steering wheel centered (tires aligned straightforward)
*2: If 180 seconds pass, steering angle mid-point setting and maximum steering angle range setting will not occur and initialize mode will end
c. Method 3 (Manual operation method)
1. Turn the engine switch on (IG).
2. Turn the clearance sonar main switch ON.
3. Turn the steering wheel to the full left and right lock position.
NOTE: Make sure to completely turn the steering wheel to the left and right full lock position.
4. Confirm that the learning operation has been completed by checking the multi-information display.
d. Method 4 (Manual operation method)
1. At an area with few turns and curves, and minimal traffic, drive at 20 km/h or more for 5 minutes or more.
4. STEERING ANGLE SENSOR INITIALIZATION (to obtain a tire angle (during straight-ahead driving) signal)
a. Turn the engine switch on (IG), and check that the master warning light and VSC/ABS warning lights illuminate for a few seconds.
NOTE: If the warning lights remain on or blink, repair he applicable system.
b. Drive the vehicle on a straight road at 35 km/h (22 mph) or more for 5 seconds or longer.
HINT:
- At this point, the steering wheel will still remain off-center by 5 to 10 degrees.
- In this step, the neutral position of the steering wheel is restored from the steering control ECU memory.
c. Confirm that steering angle sensor initialization is completed (when using the intelligent tester).
1. Enter the VGRS menu using the intelligent tester. Select "STRAIGH ANG FLG" from "DATA LIST". Check if the steering angle sensor has obtained a tire angle (during straight-ahead driving) signal.
Standard:
"VALID" is displayed on the tester screen.
d. Confirm that steering angle sensor initialization is completed (when not using the intelligent tester).
1. Drive the vehicle on a straight road at 60 km/h (37 mph) or more for 30 seconds or longer.
2. Stop the vehicle (engine running).
3. Slowly turn the steering wheel from lock to lock.
4. If it turns approximately 2.7 turns, steering angle sensor initialization is completed. If it turns approximately 3.2 turns, steering angle sensor initialization is not completed.
NOTE: If the steering wheel turns approximately 3.2 turns, perform step (b) again.