Intuitive Parking Assist System (Diagnostics - Introduction): Diagnosis Lexus GS III рестайлинг

HOW TO PROCEED WITH TROUBLESHOOTING

HINT

1. Use these procedures to troubleshoot the intuitive parking assist system.
2. *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP NEXT: Go to next step
2. INSPECT BATTERY VOLTAGE Standard voltage 11 to 14 V If the voltage is below 1 V, recharge or replace the battery before proceeding. NEXT: Go to next step
3. CHECK AND CLEAR DTC* Refer to «DTC CHECK / CLEAR»(ref-387168-S41957173172011022400000) . NEXT: Go to next step
4. CHECK INITIAL CHECK FUNCTION Refer to «OPERATION CHECK»(ref-387168-S36657764622011022400000) . RESULT Result Proceed to Symptom does not occur A Symptom occurs B B --> Go to step 6 A: Go to next step
5. SYMPTOM SIMULATION NEXT: Go to next step
6. CHECK MULTIPLEX COMMUNICATION SYSTEM* Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-386979-S20279454612011022400000) . HINT: This ECU is connected to the multiplex communication system. Therefore, be sure to check that there are no problems in the multiplex communication system before performing troubleshooting. NEXT: Go to next step
7. CHECK CAN COMMUNICATION SYSTEM* Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-387091-S07682503522011022400000) . HINT: This ECU is connected to the CAN communication system. Therefore, be sure to check that there are no problems in the CAN communication system before performing troubleshooting. NEXT: Go to next step
8. DTC CHECK* Refer to «DTC CHECK / CLEAR»(ref-387168-S41957173172011022400000) . RESULT Result Proceed to DTC is output A DTC is not output B B --> Go to step 10 A: Go to next step
9. DTC CHART Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-387168-S24255219282011022400000) . NEXT --> Go to step 11
10. PROBLEM SYMPTOMS TABLE Refer to «PROBLEM SYMPTOMS TABLE»(ref-387168-S31470796312011022400000) . NEXT: Go to next step
11. CIRCUIT INSPECTION NEXT: Go to next step
12. IDENTIFICATION OF PROBLEM NEXT: Go to next step
13. REPAIR OR REPLACE NEXT: Go to next step
14. CONFIRMATION TEST NEXT --> END

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1. SELF-CHECK FUNCTION INSPECTION Turn the power switch on (IG). 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's detection operation malfunctions because it is wet or frozen, a malfunction display is shown in the multi-information display and multi-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) Ultrasonic sensor open circuit 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»(ref-387168-S14135339942011022400000) . Ultrasonic sensor frozen 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. Steering angle information failure display 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. Steering angle mid-point learning operation display 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 (MULTI-DISPLAY) Ultrasonic sensor open circuit 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»(ref-387168-S14135339942011022400000) to inspect it. Ultrasonic sensor frozen 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. Steering angle information failure display 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 (*) appears in normal clearance sonar mode. Steering angle mid-point learning operation display 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 (*) appears in normal clearance sonar mode.
4. DETECTION RANGE MEASUREMENT AND DISPLAY INSPECTION Detection range measurement NOTE: Make sure the vehicle does not move by applying the parking brake firmly. Turn the power switch on (IG). 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 on R. 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 on R. Turn the clearance sonar main switch ON. Move a 60 mm (2.36 in.) 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: NOTE: These detection ranges are applicable when positioning the 60 mm (2.36 in.) 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's hatched area (labeled *1) represents a partial cross section of the top view detection range's A lines. The hatched area (*1) does not represent the entire side view detection range. When the No. 3 ultrasonic sensors have detected an obstacle, check the displays and buzzer sounds. OPERATION CONDITION: Power Switch Clearance Sonar Main Switch Shift Lever Position Vehicle Speed on (IG) ON In any position except P, R 10 km/h (6 mph) or less Multi-information Display and Multi-display Buzzer Sound Standard MULTI-INFORMATION DISPLAY (SHIFT LEVER POSITION NOT ON P) Detection Range During Collision Judgment During Avoidance Judgment During Low Priority Avoidance Judgment *1 Close-range detection Within approx. 250 +-50 mm (9.84 +-1.97 in.) Buzzer: Sounds continuously Number of bars displayed: 1 (Blinking) No steering guide mark - - *2 Medium-range detection From approx. 250 +-50 to 375 +-50 mm (9.84 +-1.97 to 14.76 +-1.97 in.) Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) Number of bars displayed: 2 (illuminated) No steering guide mark Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) Number of bars displayed: 2 (illuminated) Steering guide mark illuminates Buzzer: Does not sound Number of bars displayed: 2 (illuminated) No steering guide mark *3 Long-range detection From approx. 375 +-50 to 500 +-50 mm (14.76 +-1.97 to 19.69 +-1.97 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) Number of bars displayed: 3 (illuminated) No steering guide mark Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) Number of bars displayed: 3 (illuminated) Steering guide mark illuminates Buzzer: Does not sound Number of bars displayed: 3 (illuminated) No steering guide mark *4 Maximum long-range detection From approx. 500 +-50 to 1,000 +-100 mm (19.69 +-1.97 to 39.37 +-3.94 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 650 msec.) Number of bars displayed: 4 (illuminated) No steering guide mark Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 650 msec.) Number of bars displayed: 4 (illuminated) Steering guide mark illuminates Buzzer: Does not sound Number of bars displayed: 4 (illuminated) No steering guide mark MULTI-DISPLAY (SHIFT LEVER POSITION NOT ON P) Detection Range During Collision Judgment During Avoidance Judgment During Low Priority Avoidance Judgment *1 Close-range detection Within approx. 250 +-50 mm (9.84 +-1.97 in.) Buzzer: Sounds continuously Number of bars displayed: 1 (red illumination) No steering guide mark - - *2 Medium-range detection From approx. 250 +-50 to 375 +-50 mm (9.84 +-1.97 to 14.76 +-1.97 in.) Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) Number of bars displayed: 2 (yellow illumination) No steering guide mark Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) Number of bars displayed: 2 (yellow illumination) Steering guide mark illuminates Buzzer: Does not sound Number of bars displayed: 2 (yellow illumination) No steering guide mark *3 Long-range detection From approx. 375 +-50 to 500 +-50 mm (14.76 +-1.97 to 19.69 +-1.97 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) Number of bars displayed: 3 (yellow illumination) No steering guide mark Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) Number of bars displayed: 3 (yellow illumination) Steering guide mark illuminates Buzzer: Does not sound Number of bars displayed: 3 (green illumination) No steering guide mark *4 Maximum long-range detection From approx. 500 +-50 to 1,000 +-100 mm (19.69 +-1.97 to 39.37 +-3.94 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 650 msec.) Number of bars displayed: 4 (yellow illumination) No steering guide mark Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 650 msec.) Number of bars displayed: 4 (yellow illumination) Steering guide mark illuminates Buzzer: Does not sound Number of bars displayed: 4 (green illumination) No steering guide mark W/ REAR VIEW MONITOR (SHIFT LEVER POSITION R) Detection Range During Collision Judgment During Avoidance Judgment During Low Priority Avoidance Judgment *1 Close-range detection Within approx. 250 +-50 mm (9.84 +-1.97 in.) Buzzer: Sounds continuously *5: Illumination (red) - - *2 Medium-range detection From approx. 250 +-50 to 375 +-50 mm (9.84 +-1.97 to 14.76 +-1.97 in.) Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) *5: Blinking (yellow) Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) *5: Blinking (yellow) Buzzer: Does not sound *5: Illumination (green) *3 Long-range detection From approx. 375 +-50 to 500 +-50 mm (14.76 +-1.97 to 19.69 +-1.97 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) *5: Blinking (yellow) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) *5: Blinking (yellow) Buzzer: Does not sound *5: Illumination (green) *4 Maximum long-range detection From approx. 500 +-50 to 1,000 +-100 mm (19.69 +-1.97 to 39.37 +-3.94 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 650 msec.) *5: Blinking (yellow) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 650 msec.) *5: Blinking (yellow) Buzzer: Does not sound *5: Illumination (green) 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 on R, the front left center and front right center sensors do not operate. When the No. 2 ultrasonic sensors have detected an obstacle, check the display and buzzer sounds. OPERATION CONDITION: Power Switch Clearance Sonar Main Switch Shift Lever Position Vehicle Speed on (IG) ON R - Multi-information Display and Multi-display Buzzer Sound Standard MULTI-INFORMATION DISPLAY (SHIFT LEVER POSITION R) Detection Range During Detection *1 Close-range detection Within approx. 350 +-50 mm (13.78 +-1.97 in.) Buzzer: Sounds continuously Number of bars displayed: 1 (blinking) *2 Medium-range detection From approx. 350 +-50 to 450 +-50 mm (13.78 +-1.97 to 17.72 +-1.97 in.) Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) Number of bars displayed: 2 (illuminated) *3 Long-range detection From approx. 450 +-50 to 600 +-60 mm (17.72 +-1.97 to 23.62 +-2.36 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) Number of bars displayed: 3 (illuminated) *4 Maximum long-range detection From approx. 600 +-60 to 1,500 +150 mm (23.62 +-2.36 to 59.06 +-5.91 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 650 msec.) Number of bars displayed: 4 (illuminated) MULTI-DISPLAY (SHIFT LEVER POSITION NOT ON P) Detection Range During Collision Judgment *1 Close-range detection Within approx. 350 +-50 mm (13.78 +-1.97 in.) Buzzer: Sounds continuously Number of bars displayed: 1 (red illumination) *2 Medium-range detection From approx. 350 +-50 to 450 +-50 mm (13.78 +-1.97 to 17.72 +-1.97 in.) Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) Number of bars displayed: 2 (yellow illumination) *3 Long-range detection From approx. 450 +-50 to 600 +-60 mm (17.72 +-1.97 to 23.62 +-2.36 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) Number of bars displayed: 3 (yellow illumination) *4 Maximum long-range detection From approx. 600 +-60 to 1,500 +-150 mm (23.62 +-2.36 to 59.06 +-5.91 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 650 msec.) Number of bars displayed: 4 (yellow illumination) W/ REAR VIEW MONITOR (SHIFT LEVER POSITION R) Detection Range During Collision Judgment *1 Close-range detection Within approx. 350 +-50 mm (13.78 +-1.97 in.) Buzzer: Sounds continuously *5: Illumination (red) *2 Medium-range detection From approx. 350 +-50 to 450 +-50 mm (13.78 +-1.97 to 14.76 +-1.97 in.) Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) *5: Blinking (yellow) *3 Long-range detection From approx. 450 +-50 to 600 +-50 mm (14.76 +-1.97 to 23.62 +-1.97 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) *5: Blinking (yellow) *4 Maximum long-range detection From approx. 600 +-50 to 1,500 mm (23.62 +-1.97 to 59.06 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 650 msec.) *5: Blinking (yellow) HINT: Ultrasonic waves are used to measure the detection range. However, the detection range may vary depending on the ambient temperature. When the No. 1 ultrasonic sensors have detected an obstacle, check the display and buzzer sounds. OPERATION CONDITION: Power Switch Clearance Sonar Main Switch Shift Lever Position Vehicle Speed on (IG) ON R 10 km/h (6 mph) or less Multi-information Display and Multi-display Buzzer Sound Standard MULTI-INFORMATION DISPLAY (SHIFT LEVER POSITION R) Detection Range During Detection *1 Close-range detection Within approx. 250 +-50 mm (9.84 +-1.97 in.) Buzzer: Sounds continuously Number of bars displayed: 1 (blinking) *2 Medium-range detection From approx. 250 +-50 to 375 +-50 mm (9.84 +-1.97 to 14.76 +-1.97 in.) Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) Number of bars displayed: 2 (illuminated) *3 Long-range detection From approx. 375 +-50 to 500 +-50 mm (14.76 +-1.97 to 19.69 +-1.97 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) Number of bars displayed: 3 (illuminated) MULTI-DISPLAY (SHIFT LEVER POSITION NOT ON P) Detection Range During Collision Judgment *1 Close-range detection Within approx. 250 +-50 mm (9.84 +-1.97 in.) Buzzer: Sounds continuously Number of bars displayed: 1 (red illumination) *2 Medium-range detection From approx. 250 +-50 to 375 +-50 mm (9.84 +-1.97 to 14.76 +-1.97 in.) Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) Number of bars displayed: 2 (yellow illumination) *3 Long-range detection From approx. 375 +-50 to 500 +-50 mm (14.76 +-1.97 to 19.69 +-1.97 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) Number of bars displayed: 3 (yellow illumination) W/ REAR VIEW MONITOR (SHIFT LEVER POSITION R) Detection Range During Collision Judgment *1 Close-range detection Within approx. 250 +-50 mm (9.84 +-1.97 in.) Buzzer: Sounds continuously *4 : Illumination (red) *2 Medium-range detection From approx. 250 +-50 to 375 +-50 mm (9.84 +-1.97 to 14.76 +-1.97 in.) Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) *4: Blinking (yellow) *3 Long-range detection From approx. 375 +-50 to 500 +-50 mm (14.76 +-1.97 to 19.69 +-1.97 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) *4: Blinking (yellow) HINT: Ultrasonic waves are used to measure the detection range. However, the detection range may vary depending on the ambient temperature. While changing the steering angle, check that the wheel angle is displayed on the multi-display. Standard Result is as shown in the illustration.

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1. CUSTOMIZE PARAMETERS (TECHSTREAM) The following items can be customized. NOTE: When the customer requests a change in a function, first make sure that the function can be customized. Be sure to make a note of the current settings before customizing. When troubleshooting a function, first make sure that the function is set to the default setting. WARNING Tester Display Default Contents Setting Front Buzzer Onset Range Wide Function to set front buzzer activation range Narrow / Wide Rear Buzzer Onset Range Wide Function to set rear buzzer activation range Narrow / Wide Keep Sense Status Buzzer ON Function to make buzzer sound when distance between vehicle and obstacle does not change for more than 3 seconds ON / OFF Fr & Rr Buzzer Volume M2 Function to change volume of buzzer L / M1 / M2 / M3 / H SENSOR Tester Display Default Contents Setting Sensor Condition N Range OFF Function to make sensors available when shift position is N OFF / ON Sonar Mode Steering Function to change sonar mode Normal / Steering DISPLAY Tester Display Default Contents Setting Display Mode Guide Function to change display mode All / Guide / Undisp
2. CUSTOMIZE MODE (MANUAL OPERATION METHOD) The settings shown below can be changed using customize mode. Enter customize mode by pressing and holding the clearance sonar main switch, and setting the light control switch from TAIL to OFF 3 times. WARNING Item Default Contents Setting Front detection range 1,000 mm (39.37 in.) Function to set a front detection range 500 mm (19.69 in.) / 1,000 mm (39.37 in.) Rear detection range 1,500 mm (59.06 in.) Function to set a rear detection range 600 mm (23.62 in.) / 1,500 mm (59.06 in.) SENSOR Item Default Contents Setting Sonar mode Steering sensing mode Function to change sonar mode Normal clearance sonar mode / Steering sensing mode NOTE: Check that the steering wheel is centered and the tires are aligned straightforward before changing to customize mode. HINT: *1: Steering wheel is centered (tires aligned straightforward). *2: If 180 seconds pass, customize mode will end. *3: If a steering angle malfunction occurs, customize mode will proceed to {H} (customize mode ends). MULTI-INFORMATION DISPLAY INDICATION SETTING IN EACH MODE [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] Note [A] • X X X X - X <-- <-- <-- [8], [9], [10] will illuminate if steering wheel mid-point is not set [B] • ↓ o X ↓ o X X ↓ o X - X • ↓ o • ↓ o • ↓ o [1], [8] to [10] will illuminate for 2 seconds, then [1], [2], [4], [8] to [10] will flash [C] o o X o X - X X X X [1], [2], [4] will flash [D] o X X X X - X X X X [1] will flash [E] o o X X <-- - <-- X X X [1], [2] will flash At the same time: If the front sensor detection area is set to 500 mm (19.69 in.), [5] will flash If the front sensor detection area is set to 1,000 mm (39.37 in.), [7] will flash [F] o X o X <-- - <-- X X X [1], [3] will flash At the same time: If the rear sensor detection area is set to 600 mm (23.62 in.), [5] will flash If the rear sensor detection area is set to 1,500 mm (59.06 in.), [7] will flash [G] o X X o <-- - <-- X X X [1], [4] will flash At the same time, if the steering sensing mode is set, [5] will flash If the normal mode is set, [7] will flash [H] o <-- <-- <-- <-- - <-- X X X [E], [F] and [G] will flash their changed settings for 5 seconds [I] • • • • • - • • • • All except [6] will illuminate for 2 seconds •: Illumination o: Flashing <--: Flashes depending on condition X : No illumination or flashing

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1. PERFORM INITIAL SETTING OF STEERING ANGLE MID-POINT AND MAXIMUM STEERING ANGLE HINT: The mid-point learning operation (steering angle mid-point, maximum steering angle) can be performed using 4 methods: Method 1 Use the Techstream to perform initial setting of mid-point When clearance warning ECU is replaced When steering wheel mid-point or wheel alignment is adjusted When cable of battery terminal is disconnected and reconnected When malfunction causes momentary drop in the power supply voltage (due to cranking, depleted battery, etc.) When steering angle sensor is removed and installed When steering angle sensor is replaced Method 2 Use customize mode to perform initial setting of mid-point When clearance warning ECU is replaced When steering wheel mid-point or wheel alignment is adjusted Method 3 Perform steering angle mid-point learning operation by rotating steering wheel to left and right full lock position When battery terminal is disconnected and reconnected When malfunction causes momentary drop in the power supply voltage (due to cranking, depleted battery, etc.) When steering angle sensor is removed and installed When steering angle sensor is replaced Method 4 Perform steering angle mid-point learning operation by traveling in approximate straight line for extended distance When battery terminal is disconnected and reconnected When malfunction causes momentary drop in the power supply voltage (due to cranking, depleted battery, etc.) When steering angle sensor is removed and installed When steering angle sensor is replaced Method 1 (Techstream) Turn the power switch off. Connect the Techstream to the DLC3. Turn the power switch ON (IG). Turn the Techstream on. Enter the following menus: Body Electrical / INTUITIVE P/A / Utility. Perform the STEERING INITIALIZATION procedure. Method 2 (Manual operation method) Using customize mode, set the mid-point and maximum steering angle. HINT: *1: Steering wheel is 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. MULTI-INFORMATION DISPLAY INDICATION SETTINGS IN EACH MODE [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] Note {A} • x x x x - x <-- <-- <-- [8], [9], [10] will illuminate if steering wheel mid-point is not set {B} • ↓ o x ↓ o x x ↓ o x - x • ↓ o • ↓ o • ↓ o [1], [8] to [10] will illuminate for 2 seconds: then [1], [2], [4], [8] to [10] will flash {C} o o x o x x x x x x [1], [2], [4] will flash • : Illumination o : Flashing <-- : Flashes depending on condition x : No illumination or flashing Method 3 (Manual operation method) Turn the power switch on (IG). Turn the clearance sonar main switch ON. 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. Method 4 (Manual operation method) At an area with few turns and curves, and minimal traffic, drive at 20 km/h (12 mph) or more for 5 minutes or more.

PROBLEM SYMPTOMS TABLE

HINT

Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

INTUITIVE PARKING ASSIST SYSTEM

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Scheme 49

Scheme 50

1. CHECK CLEARANCE WARNING ECU Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition IG (A38-8) - E (A38-27) G-Y - W-B IG signal / IG power source Power switch on (IG) 10 to 14 V E (A38-27) - Body ground W-B - Body ground ECU ground Always Below 1 ohms S1 (A38-1) - EF (A38-14) GR - BR No. 3 ultrasonic sensor (Front right sensor) Signals are transmitted from ECU to front right sensor (During OFF sensing) Pulse generation (see waveform 1 (Scheme 46) ) T1 (A38-2) - EF (A38-14) L-W - BR No. 3 ultrasonic sensor (Front right sensor) Signals are transmitted from ECU to front right sensor (During OFF sensing) Pulse generation (see waveform 2 (Scheme 47) ) S2 (A38-3) - EF (A38-14) R - BR No. 3 ultrasonic sensor (Front right center sensor) Signals are transmitted from ECU to front right center sensor (During OFF sensing) Pulse generation (see waveform 1 (Scheme 46) ) T2 (A38-4) - EF (A38-14) R-L - BR No. 3 ultrasonic sensor (Front right center sensor) Signals are transmitted from ECU to front right center sensor (During OFF sensing) Pulse generation (see waveform 2 (Scheme 47) ) S3 (A38-5) - EF (A38-14) G - BR No. 3 ultrasonic sensor (Front left center sensor) Signals are transmitted from ECU to front left center sensor (During OFF sensing) Pulse generation (see waveform 1 (Scheme 46) ) T3 (A38-6) - EF (A38-14) G-R - BR No. 3 ultrasonic sensor (Front left center sensor) Signals are transmitted from ECU to front left center sensor (During OFF sensing) Pulse generation (see waveform 2 (Scheme 47) ) S4 (A38-7) - EF (A38-14) P-L - BR No. 3 ultrasonic sensor (Front left sensor) Signals are transmitted from ECU to front left sensor (During OFF sensing) Pulse generation (see waveform 1 (Scheme 46) ) T4 (A38-21) - EF (A38-14) V - BR No. 3 ultrasonic sensor (Front left sensor) Signals are transmitted from ECU to front left sensor (During OFF sensing) Pulse generation (see waveform 2 (Scheme 47) ) EF (A38-14) - Body ground BR - Body ground No. 3 ultrasonic sensor ground Always Below 1 ohms S5 (A38-10) - ER (A38-29) GR - LG No. 1 ultrasonic sensor (Rear right sensor) Signals are transmitted from ECU to front right sensor (During OFF sensing) Pulse generation (see waveform 1 (Scheme 46) ) S6 (A38-11) - ER (A38-29) W - LG No. 1 ultrasonic sensor (Rear left sensor) Signals are transmitted from ECU to front left sensor (During OFF sensing) Pulse generation (see waveform 1 (Scheme 46) ) S7 (A38-12) - ER (A38-29) B - LG No. 2 ultrasonic sensor (Rear right center sensor) Signals are transmitted from ECU to rear right center sensor (During OFF sensing) Pulse generation (see waveform 1 (Scheme 46) ) S8 (A38-13) - ER (A38-29) R-B - LG No. 2 ultrasonic sensor (Rear left center sensor) Signals are transmitted from ECU to rear left center sensor (During OFF sensing) Pulse generation (see waveform 1 (Scheme 46) ) ER (A38-29) - Body ground LG - Body ground No. 1 ultrasonic sensor, No. 2 ground Always Below 1 ohms CBZ (A38-9) - E (A38-27) W - W-B Buzzer output Buzzer sounding Pulse generation (see waveform 3 (Scheme 48) ) M+ (A38-26) - E (A38-27) GR - W-B BEAN communication Power switch on (IG), Clearance sonar main switch ON Pulse generation (see waveform 4 (Scheme 49) ) R1 (A38-23) - R2 (A38-24) W - B CAN communication Power switch on (IG) Pulse generation (see waveform 5 (Scheme 50) ) Using an oscilloscope, check the waveform 1. WAVEFORM 1 (REFERENCE) Item Content Symbols (Terminal No.) S1 (A38-1) - EF (A38-14) S2 (A38-3) - EF (A38-14) S3 (A38-5) - EF (A38-14) S4 (A38-7) - EF (A38-14) S5 (A38-10) - ER (A38-29) S6 (A38-11) - ER (A38-29) S7 (A38-12) - ER (A38-29) S8 (A38-13) - ER (A38-29) Tool Setting 2 V/DIV., 100 μsec./DIV. Condition Signals are transmitted from ECU to sensor (During OFF sensing) Using an oscilloscope, check the waveform 2. WAVEFORM 2 (REFERENCE) Item Content Symbols (Terminal No.) T1 (A38-2) - EF (A38-14) T2 (A38-4) - EF (A38-14) T3 (A38-6) - EF (A38-14) T4 (A38-21) - EF (A38-14) Tool Setting 2 V/DIV., 100 μsec./DIV. Condition Signals are transmitted from ECU to sensor (During OFF sensing) Using an oscilloscope, check the waveform 3. WAVEFORM 3 (REFERENCE) Item Content Symbols (Terminal No.) CBZ (A38-9) - E (A38-27) Tool Setting 2 V/DIV., 1 msec./DIV. Condition Buzzer sounding Using an oscilloscope, check the waveform 4. WAVEFORM 4 (REFERENCE) Item Content Symbols (Terminal No.) M+ (A38-26) - E (A38-27) Tool Setting 2 V/DIV., 1 msec./DIV. Condition Power switch on (IG) Clearance sonar main switch ON Using an oscilloscope, check the waveform 5. WAVEFORM 5 (REFERENCE) Item Content Symbols (Terminal No.) R1 (A38-23) - R2 (A38-24) Tool Setting 2 V/DIV., 50 μsec./DIV. Condition Power switch on (IG)

Scheme 51

1. DESCRIPTION When troubleshooting a vehicle with the diagnosis system, the only difference from the usual troubleshooting procedure is connecting the Techstream to the vehicle and reading various data output from the vehicle's clearance warning ECU. The clearance warning ECU records DTCs when the ECU detects a malfunction in the ECU itself or in its circuits. To check the DTCs, connect the Techstream to the DLC3 on the vehicle. The Techstream enables you to erase the DTCs, activate the various actuators, and check the freeze frame data and Data List.
2. CHECK DLC3 The ECU uses ISO 15765-4 for communication. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format. Symbols (Terminals No.) Terminal Description Condition Specified Condition SIL (7) - SG (5) Bus "+" line During transmission Pulse generation CG (4) - Body ground Chassis ground Always Below 1 ohms SG (5) - Body ground Signal ground Always Below 1 ohms BAT (16) - Body ground Battery positive Always 11 to 14 V CANH (6) - CANL (14) CAN bus line Power switch OFF* 54 to 69 ohms CANH (6) - CG (4) HIGH-level CAN bus line Power switch OFF* 200 ohms or more CANL (14) - CG (4) LOW-level CAN bus line Power switch OFF* 200 ohms or more CANH (6) - BAT (16) HIGH-level CAN bus line Power switch OFF* 6 kohms or more CANL (14) - BAT (16) LOW-level CAN bus line Power switch OFF* 6 kohms or more NOTE: *: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the power switch, any other switches or the doors. If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness and connector. HINT: Connect the cable of the Techstream to the DLC3, turn the power switch on (IG) and attempt to use the Techstream. If the display indicates that a communication error has occurred, there is a problem either with the vehicle or with the Techstream. If communication is normal when the Techstream is connected to another vehicle, inspect the DLC3 of the original vehicle. If communication is still not possible when the Techstream is connected to another vehicle, the problem may be in the Techstream itself. Consult the Service Department listed in the Techstream's instruction manual.

DTC CHECK / CLEAR

1. CHECK DTC Connect the Techstream to the DLC3. Turn the power switch ON (IG). Turn the Techstream on. Enter the following menus: Body Electrical / INTUITIVE P/A / Trouble Codes. Check the details of the DTC(s). Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-387168-S24255219282011022400000) .
2. CLEAR DTC Connect the Techstream to the DLC3. Turn the power switch ON (IG). Turn the Techstream on. Enter the following menus: Body Electrical / INTUITIVE P/A / Trouble Codes. Clear the DTCs.

DATA LIST / ACTIVE TEST

1. DATA LIST 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. Read the Data List information early in troubleshooting is one way to save diagnostic time. Connect the Techstream to the DLC3. Turn the power switch ON (IG). Turn the Techstream on. Enter the following menus: for INTUITIVE P/A: Body Electrical / INTUITIVE P/A / Data List. for D-SEAT SW: Body Electrical / D-SEAT SW / Data List. Check the value(s) by referring to the table below. INTUITIVE P/A: Tester Display Measurement Item/Range Normal Condition Diagnostic Note Main Switch Clearance sonar main switch / OFF or ON OFF: Clearance sonar main switch OFF ON: Clearance sonar main switch ON - Initial Steering Angle Set Steering angle mid-point initial setting / Done or Not Yet Done: Initial learning operation is completed NOT YET: Initial learning operation is not complete - Current Steering Angle Set Steering angle mid-point current setting / Set or Unset Set: Steering angle mid-point is completed Unset: Steering angle mid-point not set - Clearance Sonar ECU Type Type of clearance warning ECU / Steer or Normal Normal: Normal clearance sonar mode Steer: Steering sensing mode - FL Detected Area Color Front left sensor detected area color / Green or YLW / RED Green: During low priority avoidance judgment YLW / RED: During collision/avoidance judgment - Fr Left Sensor Front left sensor information / Undtct, Long, M Long, Middle, Close, Freeze, Open or Blink Undtct: Not detected Long: Detected (long-range) M Long: Detected (mid long-range) Middle: Detected (medium-range) Close: Detected (close-range) Open: Open (Open in sensor) Freeze: Freeze (Sensor is frozen) Blink: Blink (All displays blinking) - FLC Detected Area Color Front left center sensor detected area color / Green or YLW / RED Green: During low priority avoidance judgment YLW / RED: During collision/avoidance judgment - Fr Left Center Sensor Front left center sensor information / Undtct, Long, M Long, Middle, Close, Freeze, Open or Blink Undtct: Not detected Long: Detected (long-range) M Long: Detected (mid long-range) Middle: Detected (medium-range) Close: Detected (close-range) Open: Open (Open in sensor) Freeze: Freeze (Sensor is frozen) Blink: Blink (All displays blinking) - FRC Detected Area Color Front right center sensor detected area color / Green or YLW / RED Green: During low priority avoidance judgment YLW / RED: During collision/avoidance judgment - Fr Right Center Sensor Front right center sensor information / Undtct, Long, M Long, Middle, Close, Freeze, Open or Blink Undtct: Not detected Long: Detected (long-range) M Long: Detected (mid long-range) Middle: Detected (medium-range) Close: Detected (close-range) Open: Open (Open in sensor) Freeze: Freeze (Sensor is frozen) Blink: Blink (All displays blinking) - FR Detected Area Color Front right sensor detected area color / Green or YLW / RED Green: During low priority avoidance judgment YLW / RED: During collision/avoidance judgment - Fr Right Sensor Front right sensor information / Undtct, Long, M Long, Middle, Close, Freeze, Open or Blink Undtct: Not detected Long: Detected (long-range) M Long: Detected (mid long-range) Middle: Detected (medium-range) Close: Detected (close-range) Open: Open (Open in sensor) Freeze: Freeze (Sensor is frozen) Blink: Blink (All displays blinking) - RL Detected Area Color Rear left sensor detected area color / Green or YLW / RED Green: During low priority avoidance judgment YLW / RED: During collision/avoidance judgment - Rr Left Sensor Rear left sensor information / Undtct, Long, Middle, Close, Freeze, Open or Blink Undtct: Not detected Long: Detected (long-range) Middle: Detected (medium-range) Close: Detected (close-range) Open: Open (Open in sensor) Freeze: Freeze (Sensor is frozen) Blink: Blink (All displays blinking) - RLC Detected Area Color Rear left center sensor detected area color / Green or YLW / RED Green: During low priority avoidance judgment YLW / RED: During collision/avoidance judgment - Rr Left Center Sensor Rear left center sensor information / Undtct, Long, M Long, Middle, Close, Freeze, Open or Blink Undtct: Not detected Long: Detected (long-range) M Long: Detected (mid long-range) Middle: Detected (medium-range) Close: Detected (close-range) Open: Open (Open in sensor) Freeze: Freeze (Sensor is frozen) Blink: Blink (All displays blinking) - RRC Detected Area Color Rear right center sensor detected area color / Green or YLW / RED Green: During low priority avoidance judgment YLW / RED: During collision/avoidance judgment - Rr Right Center Sensor Rear right center sensor information / Undtct, Long, Middle, Close, Freeze, Open or Blink Undtct: Not detected Long: Detected (long-range) Middle: Detected (medium-range) Close: Detected (close-range) Open: Open (Open in sensor) Freeze: Freeze (Sensor is frozen) Blink: Blink (All displays blinking) - RR Detected Area Color Rear right sensor detected area color / Green or YLW / RED Green: During low priority avoidance judgment YLW / RED: During collision/avoidance judgment - Rr Right Sensor Rear right sensor information / Undtct, Long, M Long, Middle, Close, Freeze, Open or Blink Undtct: Not detected Long: Detected (long-range) M Long: Detected (mid long-range) Middle: Detected (medium-range) Close: Detected (close-range) Open: Open (Open in sensor) Freeze: Freeze (Sensor is frozen) Blink: Blink (All displays blinking) - Fr Buzzer Onset Range Front buzzer onset range / Narrow or Wide Narrow: 500 mm (19.69 in.) Wide: 1,000 mm (39.37 in.) - Rr Buzzer Onset Range Rear buzzer onset range / Narrow or Wide Narrow: 600 mm (23.62 in.) Wide: 1,500 mm (59.06 in.) - Keep Sense Buzzer Keep sense status buzzer / Not Avail or Avail Not Avail: Buzzer sound stops in 3 sec. Avail: Buzzer sound does not stop Buzzer can be stopped when an obstacle is at the same position for 3 sec. or more Fr & Rr Buzzer Volume Front & rear buzzer volume / L, M1, M2, M3, or H - - Sensor Condition N Sensor condition N range / Not Avail or Avail Not Avail: Sensors not available Avail: Sensors available Sensor operation in shift lever N Display Mode Display mode / All, Guide or Undisp ALL: All displays displayed GUIDE: Guide displayed UNDISP: Nothing displayed - Sonar Mode Sonar mode / Normal, Steer Normal: Normal clearance sonar mode STEER: Steering sensing mode - D-SEAT SW: Tester Display Measurement Item/Range Normal Condition Diagnostic Note Sonar Main Switch Clearance sonar main switch / OFF or ON OFF: Clearance sonar main switch OFF ON: Clearance sonar main switch ON
2. ACTIVE TEST Using the Techstream to perform Active Tests allows the relay, actuator, and other items to operate 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 Test early in troubleshooting is one way to save diagnostic time. Data List information can be display while performing Active Test. Connect the Techstream to the DLC3. Turn the power switch ON (IG). Turn the Techstream on. Enter the following menus: Body Electrical / INTUITIVE P/A / Active Test. Check the operation by referring to the table below. INTUITIVE P/A: Tester Display Test Part Control Range Diagnostic Note FRONT BUZZER Front buzzer (Clearance warning buzzer) STOP or OPERATE

DIAGNOSTIC TROUBLE CODE CHART

HINT

If a trouble code is displayed during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See " below.

INTUITIVE PARKING ASSIST SYSTEM