Intuitive Parking Assist System (Diagnostics - Introduction): Other Lexus IS III

PRECAUTION [04/2013 - ]

1. PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL NOTE: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected. System Name See Procedure Air Conditioning System Refer to «INITIALIZATION [04/2013 - ]»(ref-665529-S01115916402014102400000) Variable Gear Ratio Steering System
2. PRECAUTIONS FOR INTUITIVE PARKING ASSIST SYSTEM Under the following conditions, the detection function may not function properly: A sensor is covered with foreign matter, such as mud or snow (detection function returns to normal when the sensor is cleaned). A sensor is frozen (detection function returns to normal when the temperature of the sensor rises). A hand is blocking a sensor. HINT: In very cold weather where a malfunction display appears, the sensor may not be able to detect obstacles. If the malfunction display appears, visually check the sensor first. If the sensor is free of foreign matter but the malfunction display remains, the sensor may be malfunctioning. The detection range may be affected by the following conditions: A sensor is covered with foreign matter, such as mud or snow. The vehicle is in an excessively hot or excessively cold area. Under the following conditions, a detection error may occur: Driving on a bumpy road, an unpaved road or in tall grass. Ultrasonic waves are received from the horn or parking sonar system of another vehicle, a motorcycle engine, or the air brakes of a large vehicle. It is raining heavily or the sensor is sprayed with water. The vehicle is tilted at a steep angle. The vehicle is equipped with a fender pole or a wireless antenna mechanism. A sensor is covered with foreign matter, such as mud or snow. The vehicle is moving forward or backward towards high curbs or objects that are perpendicular to the ground. A sensor is sprayed with high pressure water or steam. A towing hitch is mounted on the vehicle. The sensors cannot detect the following objects: Thin objects, such as wires and ropes Materials that absorb ultrasonic waves, such as cotton or snow. Objects with sharp edges Short objects Objects that are tall and protrude toward the vehicle above the detection range of the sensors. Other notices: The sensors cannot detect objects directly under the bumper. (A sensor may detect low objects and thin poles and then lose track of them.) Be aware that the detection range of this system is limited. In certain conditions, some objects may not be detected. Always make sure to check all around the vehicle when driving or parking. The sensors may not be able to detect obstacles that are too close to the sensors. The sensors may not be able to detect obstacles if the sensors have been dropped or subjected to a strong impact.

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COMMUNICATION TABLE

CAUTION / NOTICE / HINT

HINT

1. Use the following procedure to troubleshoot the intuitive parking assist system.
2. *: Use the Techstream.

PROCEDURE

1. VEHICLE BROUGHT TO WORKSHOP Result Proceed to NEXT Result: 1 NEXT See step 2
2. CUSTOMER PROBLEM ANALYSIS Result Proceed to NEXT Result: 1 NEXT See step 3
3. INSPECT BATTERY VOLTAGE Measure the battery voltage. Standard Voltage 11 to 14 V If the voltage is below 11 V, replace or recharge the battery before proceeding to the next step. Result Proceed to NEXT Result: 1 NEXT See step 4
4. CHECK CAN COMMUNICATION SYSTEM* Use the Techstream to check if the CAN communication system is functioning normally. Refer to «DIAGNOSIS SYSTEM [04/2013 - ]»(ref-665810-S14264089842014102400000) Result Result Proceed to CAN communication system DTCs are not output A CAN communication system DTCs are output B Result: 2 B GO TO CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665785-S15342612202014102400000) Result: 1 A See step 5
5. PROBLEM SYMPTOM CONFIRMATION Result Proceed to NEXT Result: 1 NEXT See step 6
6. CHECK DTC* Check for DTCs. Refer to «DTC CHECK/CLEAR [04/2013 - ]»(ref-665535-S23743163362014102400000) Body Electrical > Intuitive P/A > Trouble Codes Result Result Proceed to DTCs are output A DTCs are not output (Problem symptom does not occur) B DTCs are not output (Problem symptom occurs) C Result: 2 B See step 8 Result: 3 C See step 9 Result: 1 A See step 7
7. DIAGNOSTIC TROUBLE CODE TABLE Refer to Diagnostic Trouble Code Table. Refer to «DIAGNOSTIC TROUBLE CODE TABLE [04/2013 - ]»(ref-665535-S21847175672014102400000) Result Proceed to NEXT Result: 1 NEXT See step 11
8. SYMPTOM SIMULATION Refer to Symptom Simulation. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665529-S21853141262014102400000) Result Proceed to NEXT Result: 1 NEXT See step 9
9. PROBLEM SYMPTOMS TABLE Refer to Problem Symptoms Table. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665535-S34645725752014102400000) Result Result Proceed to Fault is not listed in Problem Symptoms Table A Fault is listed in Problem Symptoms Table B Result: 2 B See step 11 Result: 1 A See step 10
10. OVERALL ANALYSIS AND TROUBLESHOOTING Operation Check Refer to «OPERATION CHECK [04/2013 - ]»(ref-665535-S33582851782014102400000) Terminals of ECU Refer to «TERMINALS OF ECU [04/2013 - ]»(ref-665535-S15922587392014102400000) Data List/Active Test Refer to «DATA LIST/ACTIVE TEST [04/2013 - ]»(ref-665535-S38803301712014102400000) Result Proceed to NEXT Result: 1 NEXT See step 11
11. CIRCUIT INSPECTION Result Proceed to NEXT Result: 1 NEXT See step 12
12. IDENTIFICATION OF PROBLEM Result Proceed to NEXT Result: 1 NEXT See step 13
13. REPAIR OR REPLACE Result Proceed to NEXT Result: 1 NEXT See step 14
14. CONFIRMATION TEST Result Proceed to NEXT Result: 1 NEXT END

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1. MALFUNCTION DISPLAY (MULTI-INFORMATION DISPLAY) Open circuit indication If there is an open circuit between a No. 1 ultrasonic sensor or No. 2 ultrasonic sensor and the clearance warning ECU assembly or a sensor is malfunctioning, the malfunction is displayed as shown in the illustration. HINT: If a sensor has an open circuit, check for DTCs and troubleshoot according to each inspection procedure. Refer to «DTC CHECK/CLEAR [04/2013 - ]»(ref-665535-S23743163362014102400000) Frozen indication If a sensor is covered with foreign matter, such as mud or snow, the affected sensor is displayed as shown in the illustration. HINT: If a frozen indication is displayed, read Precaution for Intuitive Parking Assist System first and confirm that the sensor is not covered with foreign matter. Refer to «PRECAUTION [04/2013 - ]»(ref-665535-S27003492682014102400000) Check for DTCs and troubleshoot according to each inspection procedure after confirming that the sensor is not covered with foreign matter. Refer to «DTC CHECK/CLEAR [04/2013 - ]»(ref-665535-S23743163362014102400000)
2. MALFUNCTION DISPLAY (MULTI-DISPLAY) Open circuit indication If there is an open circuit between the No. 1 ultrasonic sensor or No. 2 ultrasonic sensor and the clearance warning ECU assembly or a sensor is malfunctioning, the malfunction is displayed as shown in the illustration. *a When the shift lever is not in P or R *b When the shift lever is in R HINT: If a sensor has an open circuit, check for DTCs and troubleshoot according to each inspection procedure. Refer to «DTC CHECK/CLEAR [04/2013 - ]»(ref-665535-S23743163362014102400000) Frozen indication If a sensor is covered with foreign matter, such as mud or snow, the affected sensor is displayed as shown in the illustration. *a When the shift lever is not in P or R *b When the shift lever is in R HINT: If a frozen indication is displayed, read Precaution for Intuitive Parking Assist System first and confirm that the sensor is not covered with foreign matter. Refer to «PRECAUTION [04/2013 - ]»(ref-665535-S27003492682014102400000) Check for DTCs and troubleshoot according to each inspection procedure after confirming that the sensor is not covered with foreign matter. Refer to «DTC CHECK/CLEAR [04/2013 - ]»(ref-665535-S23743163362014102400000)
3. DETECTION RANGE MEASUREMENT AND DISPLAY INSPECTION NOTE: The following measurement and inspection will be performed with the shift lever in a position other than P. Be sure to apply the parking lever and depress the brake pedal firmly to prevent the vehicle from moving. Turn the engine switch on (IG). Turn the back sonar or clearance sonar switch assembly on. Detection range measurement: Move the shift lever according to the table below. Measurement Area Shift Lever Position Front Corner In any position other than P Front Center In any position other than P or R Rear Corner R Rear Center Move a 60 mm (2.4 in.) diameter pole near each sensor to measure its detection range. When measuring the longest-range detection of the front center sonar and the rear center sonar, use a wall or equivalent. NOTE: These detection ranges are applicable when positioning the 60 mm (2.4 in.) diameter pole parallel or perpendicular to the ground. The detection range varies depending on the measuring method and type of obstacle (such as walls). HINT: Have an assistant move the pole. Corner Sonar Detection Range NOTE: The No. 1 ultrasonic sensor side view detection range (hatched area labeled (B)) represents the cross section of the top view detection range (A). The hatched area (B) does not represent the entire side view detection range. Front Center Sonar Detection Range Rear Center Sonar Detection Range Front corner sonar display and buzzer operation check When the No. 1 ultrasonic sensors (front corner sonar) have detected an obstacle, check the displays and check that the buzzer sounds. OPERATION CONDITION Engine Switch Back Sonar or Clearance Sonar Switch Assembly Shift Lever Position Vehicle Speed On (IG) On In any position other than P or R Less than approximately 15 km/h (9 mph) if speed is increasing Less than approximately 10 km/h (6 mph) if speed is decreasing On (IG) On R - *a Multi-information Display *b Multi-display *c Example (Front Corner Sonar) *d Close-range Detection *e Medium-range Detection *f Long-range Detection Standard MULTI-INFORMATION DISPLAY AND BUZZER Detection Range During Judgment Obstacle Close-range detection Within approx. 300 +/- 50 mm (11.8 +/- 2.0 in.) Buzzer: Sounds continuously Number of bars displayed: 1 (blinking) 60 mm (2.4 in.) diameter pole Medium-range detection From approx. 300 +/- 50 to 400 +/- 50 mm (11.8 +/- 2.0 to 15.7 +/- 2.0 in.) Buzzer: Sounds intermittently (ON: 0.075 sec. / OFF: 0.075 sec.) Number of bars displayed: 2 (illuminated) 60 mm (2.4 in.) diameter pole Long-range detection From approx. 400 +/- 50 to 500 +/- 50 mm (15.7 +/- 2.0 to 19.7 +/- 2.0 in.) Buzzer: Sounds intermittently (ON: 0.15 sec. / OFF: 0.15 sec.) Number of bars displayed: 3 (illuminated) 60 mm (2.4 in.) diameter pole MULTI-DISPLAY AND BUZZER Detection Range During Judgment Obstacle Close-range detection Within approx. 300 +/- 50 mm (11.8 +/- 2.0 in.) Buzzer: Sounds continuously Number of bars displayed: 1 (illuminated) 60 mm (2.4 in.) diameter pole Medium-range detection From approx. 300 +/- 50 to 400 +/- 50 mm (11.8 +/- 2.0 to 15.7 +/- 2.0 in.) Buzzer: Sounds intermittently (ON: 0.075 sec. / OFF: 0.075 sec.) Number of bars displayed: 2 (illuminated) 60 mm (2.4 in.) diameter pole Long-range detection From approx. 400 +/- 50 to 500 +/- 50 mm (15.7 +/- 2.0 to 19.7 +/- 2.0 in.) Buzzer: Sounds intermittently (ON: 0.15 sec. / OFF: 0.15 sec.) Number of bars displayed: 3 (illuminated) 60 mm (2.4 in.) diameter pole HINT: Ultrasonic waves are used to measure the detection range; however, the detection range may vary depending on the ambient temperature. Front center sonar display and buzzer operation check When the No. 2 ultrasonic sensors (front center sonar) have detected an obstacle, check the display and check that the buzzer sounds. OPERATION CONDITION Engine Switch Back Sonar or Clearance Sonar Switch Assembly Shift Lever Position Vehicle Speed On (IG) On In any position other than P or R Less than approximately 15 km/h (9 mph) if speed is increasing Less than approximately 10 km/h (6 mph) if speed is decreasing *a Multi-information Display *b Multi-display *c Example (Front Center Sonar) *d Close-range Detection *e Medium-range Detection *f Long-range Detection *g Longest-range Detection - - Standard MULTI-INFORMATION DISPLAY AND BUZZER Detection Range During Detection Obstacle Close-range detection Within approx. 300 +/- 50 mm (11.8 +/- 2.0 in.) Buzzer: Sounds continuously Number of bars displayed: 1 (blinking) 60 mm (2.4 in.) diameter pole Medium-range detection From approx. 300 +/- 50 to 400 +/- 50 mm (11.8 +/- 2.0 to 15.7 +/- 2.0 in.) Buzzer: Sounds intermittently (ON: 0.075 sec. / OFF: 0.075 sec.) Number of bars displayed: 2 (illuminated) 60 mm (2.4 in.) diameter pole Long-range detection From approx. 400 +/- 50 to 500 +/- 50 mm (15.7 +/- 2.0 to 19.7 +/- 2.0 in.) Buzzer: Sounds intermittently (ON: 0.15 sec. / OFF: 0.15 sec.) Number of bars displayed: 3 (illuminated) 60 mm (2.4 in.) diameter pole Longest-range detection From approx. 500 +/- 50 to 1000 +/- 100 mm (19.7 +/- 2.0 to 39.4 +/- 3.9 in.) Buzzer: Sounds intermittently (ON: 0.15 sec. / OFF: 0.65 sec.) Number of bars displayed: 4 (illuminated) Wall MULTI-DISPLAY AND BUZZER Detection Range During Detection Obstacle Close-range detection Within approx. 300 +/- 50 mm (11.8 +/- 2.0 in.) Buzzer: Sounds continuously Number of bars displayed: 1 (illuminated) 60 mm (2.4 in.) diameter pole Medium-range detection From approx. 300 +/- 50 to 400 +/- 50 mm (11.8 +/- 2.0 to 15.7 +/- 2.0 in.) Buzzer: Sounds intermittently (ON: 0.075 sec. / OFF: 0.075 sec.) Number of bars displayed: 2 (illuminated) 60 mm (2.4 in.) diameter pole Long-range detection From approx. 400 +/- 50 to 500 +/- 50 mm (15.7 +/- 2.0 to 19.7 +/- 2.0 in.) Buzzer: Sounds intermittently (ON: 0.15 sec./ OFF: 0.15 sec.) Number of bars displayed: 3 (illuminated) 60 mm (2.4 in.) diameter pole Longest-range detection From approx. 500 +/- 50 to 1000 +/- 100 mm (19.7 +/- 2.0 to 39.4 +/- 3.9 in.) Buzzer: Sounds intermittently (ON: 0.15 sec. / OFF: 0.65 sec.) Number of bars displayed: 4 (illuminated) Wall HINT: Ultrasonic waves are used to measure the detection range; however, the detection range may vary depending on the ambient temperature. Rear corner sonar display and buzzer operation check When the No. 1 ultrasonic sensors (rear corner sonar) have detected an obstacle, check the display and check that the buzzer sounds. OPERATION CONDITION Engine Switch Back Sonar or Clearance Sonar Switch Assembly Shift Lever Position Vehicle Speed On (IG) On R - *a Multi-information Display *b Example (Rear Corner Sonar) *c Close-range Detection *d Medium-range Detection *e Long-range Detection - - Standard MULTI-INFORMATION DISPLAY AND BUZZER Detection Range During Judgment Obstacle Close-range detection Within approx. 300 +/- 50 mm (11.8 +/- 2.0 in.) Buzzer: Sounds continuously Number of bars displayed: 1 (blinking) 60 mm (2.4 in.) diameter pole Medium-range detection From approx. 300 +/- 50 to 450 +/- 50 mm (11.8 +/- 2.0 to 17.7 +/- 2.0 in.) Buzzer: Sounds intermittently (ON: 0.075 sec. / OFF: 0.075 sec.) Number of bars displayed: 2 (illuminated) 60 mm (2.4 in.) diameter pole Long-range detection From approx. 450 +/- 50 to 600 +/- 50 mm (17.7 +/- 2.0 to 23.6 +/- 2.0 in.) Buzzer: Sounds intermittently (ON: 0.15 sec. / OFF: 0.15 sec.) Number of bars displayed: 3 (illuminated) 60 mm (2.4 in.) diameter pole HINT: Ultrasonic waves are used to measure the detection range; however, the detection range may vary depending on the ambient temperature. Rear center sonar display and buzzer operation check When the No. 1 ultrasonic sensors (rear center sonar) have detected an obstacle, check the display and check that the buzzer sounds. OPERATION CONDITION Engine Switch Back Sonar or Clearance Sonar Switch Assembly Shift Lever Position Vehicle Speed On (IG) On R - *a Multi-information Display *b Example (Rear Center Sonar) *c Close-range Detection *d Medium-range Detection *e Long-range Detection *f Longest-range Detection Standard MULTI-INFORMATION DISPLAY AND BUZZER Detection Range During Detection Obstacle Close-range detection Within approx. 350 +/- 50 mm (13.8 +/- 2.0 in.) Buzzer: Sounds continuously Number of bars displayed: 1 (blinking) 60 mm (2.4 in.) diameter pole Medium-range detection From approx. 350 +/- 50 to 450 +/- 50 mm (13.8 +/- 2.0 to 17.7 +/- 2.0 in.) Buzzer: Sounds intermittently (ON: 0.075 sec. / OFF: 0.075 sec.) Number of bars displayed: 2 (illuminated) 60 mm (2.4 in.) diameter pole Long-range detection From approx. 450 +/- 50 to 600 +/- 100 mm (17.7 +/- 2.0 to 23.6 +/- 3.9 in.) Buzzer: Sounds intermittently (ON: 0.15 sec. / OFF: 0.15 sec.) Number of bars displayed: 3 (illuminated) 60 mm (2.4 in.) diameter pole Longest-range detection From approx. 600 +/- 100 to 1500 +/- 150 mm (23.6 +/- 3.9 to 59.1 +/- 5.9 in.) Buzzer: Sounds intermittently (ON: 0.15 sec. / OFF: 0.65 sec.) Number of bars displayed: 4 (illuminated) Wall HINT: Ultrasonic waves are used to measure the detection range; however, the detection range may vary depending on the ambient temperature.

CUSTOMIZE PARAMETERS [04/2013 - ]

1. CUSTOMIZE INTUITIVE PARKING ASSIST SYSTEM Customizing with the Techstream 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. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the back sonar or clearance sonar switch assembly on. Turn the Techstream on. Enter the following menus: Body Electrical / Intuitive P/A / Utility / Customize Setting. Select the setting by referring to the table below. Warning Tester Display Description Default Setting ECU Fr Sensor Onset Range Sets the detection operation range for the front center sensors. Wide 0:Narrow, 1:Wide Clearance warning ECU assembly Rr Sensor Onset Range Sets the detection operation range for the rear center sensors. Wide 0:Narrow, 1:Wide Clearance warning ECU assembly Keep Sense Buzzer Sounds the buzzer when the distance between the vehicle and an obstacle does not change for more than 3 seconds. Avail 0:Not Avail, 1:Avail Clearance warning ECU assembly Fr & Rr Buzzer Volume Changes the buzzer volume setting. M2 001:L, 010:M1, 011:M2, 100:M3, 101:H Clearance warning ECU assembly Temporary Mute Reset Speed Adjust Sets the vehicle speed at which the temporary mute function resets. 20 km/h 00:System Link, 01:15 km/h, 10:20 km/h, 11:30 km/h Clearance warning ECU assembly Temporary Mute Function Sets the availability of the temporary mute function. ON 0:OFF, 1:ON Clearance warning ECU assembly Sensor Tester Display Description Default Setting ECU Sensor Condition N Makes the front sensors available when the shift lever is in N. Avail 0:Not Avail, 1:Avail Clearance warning ECU assembly Reverse Range Front Sensor Changes the operation setting for the front sensors when the shift lever is in R. Fcrn 00:F, 01:Fcrn, 10:F Stop Clearance warning ECU assembly Non P/R Range Rear Sensor Changes the operation setting for the rear sensors when the shift lever is in any position other than P or R. R Stop 00:R, 01:Rcrn, 10:R Stop Clearance warning ECU assembly Display Tester Display Description Default Setting ECU Display Mode All The display mode setting (when the intuitive parking assist system is normal). 01:All, 11:Undisp Clearance warning ECU assembly Customizing with multi-display 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. Turn the engine switch on (IG). Turn the back sonar or clearance sonar switch assembly on. Enter the following menus: MENU / Setup / Vehicle / LEXUS Park Assist. Select the setting by referring to the table below. W/ NAVIGATION SYSTEM Display Description Default Setting ECU Alert Volume Sets the buzzer alert volume. 3 1, 2, 3, 4 or 5 Clearance warning ECU assembly Display The display mode setting (when the intuitive parking assist system is normal). Indicator of Display Off not illuminated*1 Indicator of Display Off not illuminated*1 or indicator of Display Off illuminated*2 Clearance warning ECU assembly Distance Front Sets the detection operation range for the front center sensors. Green*4 Orange*3 or Green*4 Clearance warning ECU assembly Distance Rear Sets the detection operation range for the rear center sensors. Green*5 Orange*3 or Green*5 Clearance warning ECU assembly W/O NAVIGATION SYSTEM Display Description Default Setting ECU Alert Volume Sets the buzzer alert volume. Level 3 Level 5, Level 4, Level 3, Level 2 or Level 1 Clearance warning ECU assembly Sonar Display The display mode setting (when the intuitive parking assist system is normal). On On or Off Clearance warning ECU assembly Front Sonar Distance Sets the detection operation range for the front center sensors. Farther*4 Nearer*3 or Farther*4 Clearance warning ECU assembly Rear Sonar Distance Sets the detection operation range for the rear center sensors. Farther*5 Nearer*3 or Farther*5 Clearance warning ECU assembly *1: Sonar indication is available on the multi-display *2: Sonar indication is not available on the multi-display *3: Detection range of 600 mm (23.6 in.) *4: Detection range of 1000 mm (39.4 in.) *5: Detection range of 1500 mm (59.1 in.)