Operation Check
PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: OPERATION CHECK
1. SELF-CHECK FUNCTION INSPECTION
(a) Turn the power switch on (IG).
(b) When the intuitive parking assist system is turned ON, check that the following occurs: 1) after 0.1 milliseconds, the buzzer sounds for approximately 0.8 seconds, and 2) the system starts the obstacle detection operation.
HINT
* If a sensor has an open circuit or a sensor detection operation malfunctions because it is wet or frozen, a malfunction display is shown in the multi-information display and the display and navigation module display, and the buzzer sounds.
* When the sensor condition returns to normal, the system ends normal clearance sonar mode and returns to steering sensing mode.
* If the clearance sonar main switch is ON and the power switch is turned on (IG), the buzzer does not sound.
2. MALFUNCTION DISPLAY (MULTI-INFORMATION DISPLAY)
(a) Ultrasonic sensor open circuit
(1) If there is an open circuit between the ultrasonic sensor and the clearance warning ECU or a sensor is malfunctioning, the malfunction is displayed as shown in the illustration.
HINT
* The example shows an open circuit in the No. 3 ultrasonic sensor (front left sensor).
* If a sensor has an open circuit, refer to "open circuit is displayed in self-check function" on the Problem Symptoms Table to inspect it.
(b) Ultrasonic sensor frozen
(1) If a sensor is covered with foreign matter, such as mud or snow, the affected sensor is displayed as shown in the illustration.
HINT
* The example shows that the No. 3 ultrasonic sensor (front left sensor) is covered with foreign matter.
* If "CLEAN SONAR" is displayed, cleaning the foreign matter from the sensor will return the sensor to normal.
(c) Steering angle information failure display
(1) A malfunction condition is displayed as shown in the illustration if one of the following occurs: 1) the steering angle sensor is determined to be malfunctioning; 2) the Variable Gear Ratio Steering system is malfunctioning; 3) there is an open circuit between the steering angle sensor and clearance warning ECU; or 4) as a result of low battery voltage, CAN communication information is blocked.
HINT
* The steering angle sensor and VGRS system communicate with the clearance warning ECU via the CAN.
* When a steering angle information failure occurs, the system enters normal clearance sonar mode.
(d) Steering angle mid-point learning operation display
(1) If the malfunction can be repaired by disconnecting and reconnecting the cable from the negative (-) battery terminal, or performing the steering angle mid-point learning operation again, it is displayed as shown in the illustration.
HINT
* When the steering angle mid-point learning operation is complete, the steering sensing function returns to normal.
* During the steering angle mid-point learning operation, the system enters normal clearance sonar mode.
3. MALFUNCTION DISPLAY (DISPLAY AND NAVIGATION MODULE DISPLAY)
(a) Ultrasonic sensor open circuit
(1) If there is an open circuit between the ultrasonic sensor and the clearance warning ECU or a sensor is malfunctioning, the malfunction is displayed as shown in the illustration.
HINT
* This example shows an open circuit in the No. 1 ultrasonic sensor (rear right sensor).
* If a sensor has an open circuit, refer to "open circuit is displayed in self-check function" on the Problem Symptoms Table to inspect it.
(b) Ultrasonic sensor frozen
(1) If a sensor is covered with foreign matter, such as mud or snow, the affected sensor is displayed as shown in the illustration.
HINT
* The example shows that the No. 3 ultrasonic sensor (front left sensor) is covered with foreign matter.
* If "CLEAN SONAR" is displayed, cleaning the foreign matter from the sensor will return the sensor to normal.
(c) Steering angle information failure display
(1) A malfunction condition is displayed as shown in the illustration if one of the following occurs: 1) the steering angle sensor is determined to be malfunctioning; 2) the Variable Gear Ratio Steering system is malfunctioning; 3) there is an open circuit between the steering angle sensor and clearance warning ECU; or 4) as a result of low battery voltage, CAN communication information is blocked.
HINT
* The steering angle sensor and Variable Gear Ratio Steering system communicate with the clearance warning ECU via the CAN.
* When a steering angle information failure occurs, the system enters normal clearance sonar mode.
* The detection range display (labeled *) appears in normal clearance sonar mode.
(d) Steering angle mid-point learning operation display
(1) If the malfunction can be repaired by disconnecting and reconnecting the cable from the negative (-) battery terminal, or performing the steering angle mid-point learning operation again, it is displayed as shown in the illustration.
HINT
* When the steering angle mid-point learning operation is complete, the steering sensing function returns to normal.
* During the steering angle mid-point learning operation, the system enters normal clearance sonar mode.
* The detection range display (labeled *) appears in normal clearance sonar mode.
4. DETECTION RANGE MEASUREMENT AND DISPLAY INSPECTION
(a) Detection range measurement
NOTICE:
Make sure the vehicle does not move by applying the parking brake firmly.
(1) Turn the power switch on (IG).
(2) Move the shift lever to any position except P or R to check the No. 3 ultrasonic sensors.
HINT
The front right center and front left center sensors (No. 3 ultrasonic sensors) do not operate when the shift lever is in R.
(3) Move the shift lever to any position except R to check the No. 1 and No. 2 ultrasonic sensors.
HINT
* The No. 1 and No. 2 ultrasonic sensors do not operate when the shift lever is in a position other than R.
* The front right center and front left center sensors (No. 3 ultrasonic sensors) do not operate when the shift lever is in R.
(b) Turn the clearance sonar main switch ON.
(c) Move a dia 60 mm (2.36 in.) diameter pole near each sensor to measure its detection range.
* No. 3 Ultrasonic Sensor Detection Range:
* No. 1 Ultrasonic Sensor Detection Range:
* No. 2 Ultrasonic Sensor Detection Range:
NOTICE:
* These detection ranges are applicable when positioning the dia 60 mm (2.36 in.) diameter pole parallel or perpendicular to the ground. The ranges vary depending on the measuring method and type of obstacle (such as walls).
* The No. 1 ultrasonic sensor side view detection range hatched area (labeled *1) represents a partial cross section of the top view detection range A lines. The hatched area (*1) does not represent the entire side view detection range.
(d) When the No. 3 ultrasonic sensors have detected an obstacle, check the displays and buzzer sounds.
(1) Multi-information Display and Display and Navigation Module Display
(2) Buzzer Sound
Standard:
HINT
* Ultrasonic waves are used to measure the detection range. However, the detection range may vary depending on the ambient temperature.
* "During collision judgment" refers to situations where the obstacle cannot be avoided using the steering wheel.
* "During avoidance judgment" refers to situations where the obstacle can be avoided using the steering wheel.
* "During low priority avoidance judgment" refers to situations where, with the current steering wheel position, the vehicle will not come within 250 mm (9.84 in.) of the obstacle.
* *5 in the illustration refers to the color and status of the steering guide mark on the displays.
* When the shift lever is in R, the front left center and front right center sensors do not operate.
(e) When the No. 2 ultrasonic sensors have detected an obstacle, check the display and buzzer sounds.
(1) Multi-information Display and Display and Navigation Module Display
(2) Buzzer Sound
Standard:
HINT
Ultrasonic waves are used to measure the detection range. However, the detection range may vary depending on the ambient temperature.
(f) When the No. 1 ultrasonic sensors have detected an obstacle, check the display and buzzer sounds.
(1) Multi-information Display and Display and Navigation Module Display
(2) Buzzer Sound
Standard:
HINT
Ultrasonic waves are used to measure the detection range. However, the detection range may vary depending on the ambient temperature.
(g) While changing the steering angle, check that the wheel angle is displayed on the display and navigation module display.
Standard:
Result is as shown in the illustration.
