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Pre-Collision (Diagnostic Codes & Circuit Tests): Other Lexus CT I

Airbag ~3482 words

PROCEDURE

  1. INSPECT FRONT SEAT OUTER BELT ASSEMBLY RH Disconnect the front seat outer belt assembly RH connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Q19-1 - Body ground Always 1 Mohms or higher Q19-2 - Body ground Always 1 Mohms or higher Reconnect the front seat outer belt assembly RH connector. NG --> See step 4 OK: Go to next step
  2. CHECK HARNESS AND CONNECTOR (FRONT SEAT OUTER BELT ASSEMBLY RH - SEAT BELT CONTROL ECU) Disconnect the cable from the negative (-) battery terminal. WARNING: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system. Disconnect the front seat outer belt assembly RH connector. Disconnect the seat belt control ECU connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Q19-1 - Body ground Always 1 Mohms or higher Q19-2 - Body ground Always 1 Mohms or higher Q19-1 - Q19-2 Always 1 Mohms or higher Reconnect the seat belt control ECU and front seat outer belt assembly RH connectors. Connect the cable to the negative (-) battery terminal. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (FRONT SEAT OUTER BELT ASSEMBLY RH - SEAT BELT CONTROL ECU) OK --> See step 3
  3. REPLACE SEAT BELT CONTROL ECU. Refer to «REMOVAL»(ref-568828-S37960316102013072300000)
  4. REPLACE FRONT SEAT OUTER BELT ASSEMBLY RH. Refer to «REMOVAL»(ref-568592-S05043488512013072300000)
  1. INSPECT FRONT SEAT OUTER BELT ASSEMBLY RH Disconnect the front seat outer belt assembly RH connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Q19-1 - Q19-2 Always Below 1 Mohms Reconnect the front seat outer belt assembly RH connector. NG --> See step 4 OK: Go to next step
  2. CHECK HARNESS AND CONNECTOR (FRONT SEAT OUTER BELT ASSEMBLY RH - SEAT BELT CONTROL ECU) Disconnect the cable from the negative (-) battery terminal. WARNING: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system. Disconnect the front seat outer belt assembly RH connector. Disconnect the seat belt control ECU connector. Using a service wire, connect 1 and 2 of the connector on the front seat outer belt assembly RH. NOTE: Do not forcibly insert the service wire into the terminals of the connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition H6-1 (MOR-) - H6-2 (MOR+) Always Below 1 ohms Disconnect the service wire from the front seat outer belt assembly RH. Reconnect the seat belt control ECU and front seat outer belt assembly RH connectors. Connect the cable to the negative (-) battery terminal. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (FRONT SEAT OUTER BELT ASSEMBLY RH - SEAT BELT CONTROL ECU) OK --> See step 3
  3. REPLACE SEAT BELT CONTROL ECU. Refer to «REMOVAL»(ref-568828-S37960316102013072300000)
  4. REPLACE FRONT SEAT OUTER BELT ASSEMBLY RH. Refer to «REMOVAL»(ref-568592-S05043488512013072300000)
  1. INSPECT FRONT SEAT OUTER BELT ASSEMBLY LH Disconnect the front seat outer belt assembly LH connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition P11-1 - Body ground Always 1 Mohms or higher P11-2 - Body ground Always 1 Mohms or higher Reconnect the front seat outer belt assembly LH connector. NG --> See step 4 OK: Go to next step
  2. CHECK HARNESS AND CONNECTOR (FRONT SEAT OUTER BELT ASSEMBLY LH - SEAT BELT CONTROL ECU) Disconnect the cable from the negative (-) battery terminal. WARNING: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system. Disconnect the front seat outer belt assembly LH connector. Disconnect the seat belt control ECU connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition P11-1 - Body ground Always 1 Mohms or higher P11-2 - Body ground Always 1 Mohms or higher P11-1 - P11-2 Always 1 Mohms or higher Reconnect the front seat outer belt assembly LH and seat belt control ECU connectors. Connect the cable to the negative (-) battery terminal. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (FRONT SEAT OUTER BELT ASSEMBLY LH - SEAT BELT CONTROL ECU) OK --> See step 3
  3. REPLACE SEAT BELT CONTROL ECU. Refer to «REMOVAL»(ref-568828-S37960316102013072300000)
  4. REPLACE FRONT SEAT OUTER BELT ASSEMBLY LH. Refer to «REMOVAL»(ref-568592-S05043488512013072300000)
  1. INSPECT FRONT SEAT OUTER BELT ASSEMBLY LH Disconnect the front seat outer belt assembly LH connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition P11-1 - P11-2 Always Below 1 Mohms Reconnect the front seat outer belt assembly LH connector. NG --> See step 4 OK: Go to next step
  2. CHECK HARNESS AND CONNECTOR (FRONT SEAT OUTER BELT ASSEMBLY LH - SEAT BELT CONTROL ECU) Disconnect the cable from the negative (-) battery terminal. WARNING: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system. Disconnect the front seat outer belt assembly LH connector. Disconnect the seat belt control ECU connector. Using a service wire, connect 1 and 2 of the connector on the front seat outer belt assembly LH. NOTE: Do not forcibly insert the service wire into the terminals of the connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition H6-3 (MOL+) - H6-4 (MOL-) Always Below 1 ohms Disconnect the service wire from the front seat outer belt assembly LH. Reconnect the front seat outer belt assembly LH and seat belt control ECU connectors. Connect the cable to the negative (-) battery terminal. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (FRONT SEAT OUTER BELT ASSEMBLY LH - SEAT BELT CONTROL ECU) OK --> See step 3
  3. REPLACE SEAT BELT CONTROL ECU. Refer to «REMOVAL»(ref-568828-S37960316102013072300000)
  4. REPLACE FRONT SEAT OUTER BELT ASSEMBLY LH. Refer to «REMOVAL»(ref-568592-S05043488512013072300000)
  1. CHECK DTC OUTPUT Using the Techstream, enter the following menus: Body Electrical / Pre-Collision / Trouble Codes. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568837-S01373230312013072300000) . Turn the power switch off. Turn the power switch on (IG). Recheck for DTCs. OK DTCs are not output. NG --> See step 3 OK --> See step 2
  2. CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568589-S05901111982013072300000)
  3. REPLACE SEAT BELT CONTROL ECU. Refer to «REMOVAL»(ref-568828-S37960316102013072300000)
  1. CHECK DTC OUTPUT (CAN COMMUNICATION SYSTEM) Clear the DTCs. Refer to «DIAGNOSIS SYSTEM»(ref-568746-S10222482722013072300000) . Recheck for DTCs. OK CAN communication system DTC is not output. NG --> See step 6 OK: Go to next step
  2. CHECK DTC OUTPUT (ELECTRONICALLY CONTROLLED BRAKE SYSTEM) Check DTCs for the electronically controlled brake system. Refer to «DTC CHECK / CLEAR»(ref-568610-S12190604652013072300000) . OK Electronically controlled brake system DTC is not output. NG --> See step 4 OK: Go to next step
  3. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision / Trouble Codes. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568837-S01373230312013072300000) . Drive the vehicle. Recheck for DTCs. OK DTC B2060 is not output. NG --> See step 5 OK --> See step 7
  4. GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568610-S00804264862013072300000)
  5. REPLACE SEAT BELT CONTROL ECU. Refer to «REMOVAL»(ref-568828-S37960316102013072300000)
  6. GO TO CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568746-S19329885762013072300000)
  7. CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568589-S05901111982013072300000)
  1. CHECK DTC OUTPUT (CAN COMMUNICATION SYSTEM) Clear the DTCs. Refer to «DIAGNOSIS SYSTEM»(ref-568746-S10222482722013072300000) . Recheck for DTCs. OK CAN communication system DTC is not output. NG --> See step 7 OK: Go to next step
  2. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision / Trouble Codes. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568837-S01373230312013072300000) . Recheck for DTCs. OK DTC B2064 is not output. NG --> See step 3 OK --> See step 6
  3. REPLACE MAIN BODY ECU Replace the main body ECU. Refer to «REMOVAL»(ref-568756-S16773882952013072300000) . NEXT: Go to next step
  4. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision / Trouble Codes. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568837-S01373230312013072300000) . Recheck for DTCs. OK DTC B2064 is not output. NG --> See step 5 OK --> END
  5. REPLACE SEAT BELT CONTROL ECU. Refer to «REMOVAL»(ref-568828-S37960316102013072300000)
  6. CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568589-S05901111982013072300000)
  7. GO TO CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568746-S19329885762013072300000)
  1. CHECK DTC OUTPUT (CAN COMMUNICATION SYSTEM) Clear the DTCs. Refer to «DIAGNOSIS SYSTEM»(ref-568746-S10222482722013072300000) . Recheck for DTCs. OK CAN communication system DTC is not output. NG --> See step 5 OK: Go to next step
  2. CHECK DTC OUTPUT (AIRBAG SYSTEM) Check DTCs for the airbag system. Refer to «DTC CHECK / CLEAR»(ref-568761-S06551148112013072300000) . OK Airbag system DTC is not output. NG --> See step 6 OK: Go to next step
  3. CHECK DTC OUTPUT (OCCUPANT CLASSIFICATION SYSTEM) Check DTCs for the occupant classification system. Refer to «DTC CHECK / CLEAR»(ref-568615-S18331892592013072300000) . OK DTC B1771 is not output. NG --> See step 9 OK: Go to next step
  4. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision / Trouble Codes. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568837-S01373230312013072300000) . Recheck for DTCs. OK DTC B2074 or B2075 is not output. NG --> See step 7 OK --> See step 8
  5. GO TO CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568746-S19329885762013072300000)
  6. GO TO AIRBAG SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-568761-S42506545082013072300000)
  7. REPLACE SEAT BELT CONTROL ECU. Refer to «REMOVAL»(ref-568828-S37960316102013072300000)
  8. CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568589-S05901111982013072300000)
  9. GO TO OCCUPANT CLASSIFICATION SYSTEM. Refer to «DIAGNOSIS SYSTEM»(ref-568615-S16546636462013072300000)
  1. CHECK DTC OUTPUT (CAN COMMUNICATION SYSTEM) Clear the DTCs. Refer to «DIAGNOSIS SYSTEM»(ref-568746-S10222482722013072300000) . Check for DTCs. OK CAN communication system DTC is not output. NG --> See step 4 OK: Go to next step
  2. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision / Trouble Codes. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568837-S01373230312013072300000) . Check for DTCs. OK DTC B2085 is not output. NG --> See step 5 OK --> See step 3
  3. CHECK FOR INTERMITTENT PROBLEMS (SYMPTOMS SIMULATION). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568589-S05901111982013072300000)
  4. GO TO CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568746-S19329885762013072300000)
  5. REPLACE SEAT BELT CONTROL ECU. Refer to «REMOVAL»(ref-568828-S37960316102013072300000)
  1. CHECK DTC OUTPUT (DYNAMIC RADAR CRUISE CONTROL SYSTEM) Check DTCs for the dynamic radar cruise control system. Refer to «DTC CHECK / CLEAR»(ref-568777-S17586583222013072300000) . OK Dynamic radar cruise control system DTCs are not output. NG --> See step 4 OK: Go to next step
  2. CHECK DTC OUTPUT (DRIVING SUPPORT ECU (PRE-COLLISION 2)) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes. Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-568837-S01373230312013072300000) . OK "Pre-Collision 2" DTC is not output. NG --> See step 5 OK: Go to next step
  3. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision / Trouble Codes. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568837-S01373230312013072300000) . Recheck for DTCs. OK DTC B2090 is not output. NG --> See step 6 OK --> END
  4. GO TO DYNAMIC RADAR CRUISE CONTROL SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-568777-S18894148462013072300000)
  5. GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-568837-S00457208902013072300000)
  6. REPLACE SEAT BELT CONTROL ECU. Refer to «REMOVAL»(ref-568828-S37960316102013072300000)
  1. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568837-S01373230312013072300000) . Recheck for DTCs. OK DTC C1A01 is not output. NG --> See step 2 OK --> See step 3
  2. REPLACE DRIVING SUPPORT ECU. Refer to «REMOVAL»(ref-568608-S08003187162013072300000)
  3. CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568589-S05901111982013072300000)
  1. CHECK DTC OUTPUT (CAN COMMUNICATION SYSTEM) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes. Clear the DTCs. Refer to «DIAGNOSIS SYSTEM»(ref-568746-S10222482722013072300000) . Recheck for DTCs. OK CAN communication system DTC is not output. NG --> See step 3 OK --> See step 2
  2. REPLACE DRIVING SUPPORT ECU. Refer to «REMOVAL»(ref-568608-S08003187162013072300000)
  3. GO TO CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568746-S19329885762013072300000)
  1. CHECK MILLIMETER WAVE RADAR SENSOR Using the Techstream, enter the following menus: Powertrain / Radar Cruise / Data List. RADAR CRUISE Tester Display Measurement Item/Range Normal Condition Diagnostic Note Country# (F Radar Sens) Millimeter wave radar sensor country signal/JPN, NA, EURO, AUS, SAFC, OTHER, TWN, CHINA, THAI, GCC, NOFIX Actual country code - Read the Data List and check the country specification information of the millimeter wave radar sensor and vehicle. RESULT Result Proceed to Country specification information for vehicle and millimeter wave radar sensor match A Country specification information for vehicle and millimeter wave radar sensor do not match B B --> See step 2 A --> See step 3
  2. REPLACE MILLIMETER WAVE RADAR SENSOR. Refer to «REMOVAL»(ref-568608-S12442981232013072300000)
  3. REPLACE DRIVING SUPPORT ECU. Refer to «REMOVAL»(ref-568608-S08003187162013072300000)
  1. REPLACE MILLIMETER WAVE RADAR SENSOR Replace the millimeter wave radar sensor. Refer to «REMOVAL»(ref-568608-S12442981232013072300000) . NEXT: Go to next step
  2. ADJUST MILLIMETER WAVE RADAR SENSOR Adjust the millimeter wave radar sensor. Refer to «ADJUSTMENT»(ref-568608-S33700383542013072300000) . NEXT: Go to next step
  3. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568837-S01373230312013072300000) . Recheck for DTCs. OK DTC C1A10 is not output. NG --> See step 4 OK --> END
  4. REPLACE DRIVING SUPPORT ECU. Refer to «REMOVAL»(ref-568608-S08003187162013072300000)
  1. ADJUST MILLIMETER WAVE RADAR SENSOR Check the millimeter wave radar sensor installation. Refer to «INSTALLATION»(ref-568608-S11186383382013072300000) . Adjust the millimeter wave radar sensor. Refer to «ADJUSTMENT»(ref-568608-S33700383542013072300000) . NEXT: Go to next step
  2. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568837-S01373230312013072300000) . Drive the vehicle. Recheck for DTCs. OK DTC C1A11 or C1A14 is not output. HINT: After performing the radar beam axis adjustment, if the same DTC is output again after the DTC detection conditions are met, replace the driving support ECU. NG --> See step 3 OK --> END
  3. REPLACE DRIVING SUPPORT ECU. Refer to «REMOVAL»(ref-568608-S08003187162013072300000)
  1. CHECK DTC OUTPUT (HYBRID CONTROL SYSTEM) Check DTCs for the hybrid control system. Refer to «DTC CHECK / CLEAR»(ref-568739-S01304250522013072300000) . OK Hybrid control system DTC is not output. NG --> See step 5 OK: Go to next step
  2. CHECK DTC OUTPUT (ENGINE CONTROL SYSTEM) Check DTCs for the engine control system. Refer to «DTC CHECK / CLEAR»(ref-568607-S14015113742013072300000) . OK Engine control system DTC is not output. NG --> See step 7 OK: Go to next step
  3. REPLACE POWER MANAGEMENT CONTROL ECU Replace the power management control ECU. Refer to «REMOVAL»(ref-568756-S19873439732013072300000) . NEXT: Go to next step
  4. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568837-S01373230312013072300000) . Check for DTCs. OK DTC C1A40 is not output. NG --> See step 6 OK --> END
  5. GO TO HYBRID CONTROL SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568739-S08567487372013072300000)
  6. REPLACE DRIVING SUPPORT ECU. Refer to «REMOVAL»(ref-568608-S08003187162013072300000)
  7. GO TO ENGINE CONTROL SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568607-S03262270932013072300000)
  1. CHECK DTC OUTPUT (ELECTRONICALLY CONTROLLED BRAKE SYSTEM) Check DTCs for the electronically controlled brake system. Refer to «DTC CHECK / CLEAR»(ref-568610-S12190604652013072300000) . OK Electronically controlled brake system DTC is not output. NG --> See step 7 OK: Go to next step
  2. CHECK DTC OUTPUT (HYBRID CONTROL SYSTEM) Check DTCs for the hybrid control system. Refer to «DTC CHECK / CLEAR»(ref-568739-S01304250522013072300000) . OK Hybrid control system DTC is not output. NG --> See step 8 OK: Go to next step
  3. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER Replace the brake booster with master cylinder (skid control ECU). Refer to «REMOVAL»(ref-568722-S12889196832013072300000) . NEXT: Go to next step
  4. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568837-S01373230312013072300000) . Check for DTCs. OK DTC C1A41 is not output. NG --> See step 5 OK --> END
  5. REPLACE POWER MANAGEMENT CONTROL ECU Replace the power management control ECU. Refer to «REMOVAL»(ref-568756-S19873439732013072300000) . NEXT: Go to next step
  6. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568837-S01373230312013072300000) . Recheck for DTCs. OK DTC C1A41 is not output. NG --> See step 9 OK --> END
  7. GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568610-S00804264862013072300000)
  8. GO TO HYBRID CONTROL SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568739-S08567487372013072300000)
  9. REPLACE DRIVING SUPPORT ECU. Refer to «REMOVAL»(ref-568608-S08003187162013072300000)
  1. CHECK DTC OUTPUT (ELECTRONICALLY CONTROLLED BRAKE SYSTEM) Check DTCs for the electronically controlled brake system. Refer to «DTC CHECK / CLEAR»(ref-568610-S12190604652013072300000) . OK DTC C1234 is not output. NG --> See step 4 OK: Go to next step
  2. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER Replace the brake booster with master cylinder (skid control ECU). Refer to «REMOVAL»(ref-568722-S12889196832013072300000) . NEXT: Go to next step
  3. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568837-S01373230312013072300000) . Driver the vehicle. Recheck for DTCs. OK DTC C1A46 is not output. NG --> See step 5 OK --> See step 6
  4. GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM. Refer to «DTC C1234/34: Yaw Rate Sensor Malfunction; DTC C1243/43: Acceleration Sensor Stuck Malfunction; DTC C1244/44: Open or Short in Acceleration Sensor Circuit; DTC C1245/45: Acceleration Sensor Output Malfunction; DTC C1279/79: Acceleration Sensor Output Voltage Malfunction (Test Mode DTC); DTC C1381/97: Acceleration Sensor Power Supply Voltage Malfunction»(ref-568779-S09431534982013072300000)
  5. REPLACE DRIVING SUPPORT ECU. Refer to «REMOVAL»(ref-568608-S08003187162013072300000)
  6. CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568589-S05901111982013072300000)
  1. CHECK DTC OUTPUT (ELECTRONICALLY CONTROLLED BRAKE SYSTEM) Check DTCs for the electronically controlled brake system. Refer to «DTC CHECK / CLEAR»(ref-568610-S12190604652013072300000) . OK Electronically controlled brake system DTC is not output. NG --> See step 4 OK: Go to next step
  2. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER Replace the brake booster with master cylinder (skid control ECU). Refer to «REMOVAL»(ref-568722-S12889196832013072300000) . NEXT: Go to next step
  3. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568837-S01373230312013072300000) . Drive the vehicle. Recheck for DTCs. OK DTC C1A47 is not output. NG --> See step 5 OK --> See step 6
  4. GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568610-S00804264862013072300000)
  5. REPLACE DRIVING SUPPORT ECU. Refer to «REMOVAL»(ref-568608-S08003187162013072300000)
  6. CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568589-S05901111982013072300000)
  1. PERFORM ACTIVE TEST USING TECHSTREAM (SKID CONTROL BUZZER) Select the Active Test, use the Techstream to generate a control command, then check that the skid control buzzer sounds. Refer to «DATA LIST / ACTIVE TEST»(ref-568610-S37769520572013072300000) . CHASSIS/ABS/VSC/TRAC Tester Display Test Part Control Range Diagnostic Note Buzzer Skid control buzzer sounds ON/OFF - OK Skid control buzzer sounds. NG --> See step 4 OK: Go to next step
  2. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER Replace the brake booster with master cylinder (skid control ECU). Refer to «REMOVAL»(ref-568722-S12889196832013072300000) . NEXT: Go to next step
  3. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568837-S01373230312013072300000) . Recheck for DTCs. OK DTC C1A4A is not output. NG --> See step 5 OK --> END (SKID CONTROL ECU ASSEMBLY WAS DEFECTIVE)
  4. GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568610-S00804264862013072300000)
  5. REPLACE DRIVING SUPPORT ECU. Refer to «REMOVAL»(ref-568608-S08003187162013072300000)
  1. CHECK DTC OUTPUT (ELECTRONICALLY CONTROLLED BRAKE SYSTEM) Check DTC for electronically controlled brake system. Refer to «DTC CHECK / CLEAR»(ref-568610-S12190604652013072300000) . OK Electronically controlled brake system DTC is not output. NG --> See step 5 OK: Go to next step
  2. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER Replace the brake booster with master cylinder (skid control ECU). Refer to «REMOVAL»(ref-568722-S12889196832013072300000) . NEXT: Go to next step
  3. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568837-S01373230312013072300000) . Check for DTCs. OK DTC U0122 is not output. NG --> See step 6 OK --> See step 4
  4. REPLACE DRIVING SUPPORT ECU. Refer to «REMOVAL»(ref-568608-S08003187162013072300000)
  5. GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568610-S00804264862013072300000)
  6. GO TO CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568746-S19329885762013072300000)

More articles — Pre-Collision (Diagnostic Codes & Circuit Tests)