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Home/Lexus/GS/Lexus GS III рестайлинг (2007-2011)/Repair manual/Anti-Lock/traction Control/Electronically Controlled Brake System (Diagnostic Codes & …
Contents Section: Anti-Lock/traction Control All sections

Electronically Controlled Brake System (Diagnostic Codes & Circuit Tests): Other Lexus GS III рестайлинг

Anti-Lock/traction Control ~4963 words

PROCEDURE

  1. CHECK PART NUMBER (SKID CONTROL ECU AND HV CONTROL ECU) Check that the proper skid control ECU and HV control ECU are installed. NG --> REPLACE ECUS WITH PROPER ONES OK: Go to next step
  2. RECONFIRM DTC Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . Turn the power switch ON (IG). Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . Result Result Proceed to DTC (C1203/95) is not output A DTC (C1203/95) is output B B --> See step 3 A --> See step 4
  3. REPLACE HV CONTROL ECU. Refer to «REGISTRATION»(ref-387110-S07083299392011022400000)
  4. CHECK INTERMITTENT PROBLEMS (SYMPTOM SIMULATION). Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-386974-S35470785852011022400000)
  1. CHECK YAW RATE AND ACCELERATION SENSOR INSTALLATION Check that the yaw rate and acceleration sensor has been installed properly. OK The sensor is tightened to the specified torque. The sensor is not tilted. NG --> See step 8 OK: Go to next step
  2. PERFORM ZERO POINT CALIBRATION OF YAW RATE AND ACCELERATION SENSOR Perform the zero point calibration of the yaw rate and acceleration sensor. Refer to «CALIBRATION»(ref-386974-S24847932002011022400000) . NEXT: Go to next step
  3. RECONFIRM DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . Turn the power switch ON (READY). Drive the vehicle and turn the steering wheel to the right and left at a speed of 35 km/h (24 mph) or more. Check if the same DTCs are recorded. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . RESULT Condition Proceed to DTCs (C1210/36 and C1336/98) are output A DTCs (C1210/36 and C1336/98) are not output B HINT: The DTCs are recorded because zero point calibration has not been completed. End the procedure since the same DTCs are not recorded after completion of zero point calibration. B --> END A: Go to next step
  4. REPLACE YAW RATE AND ACCELERATION SENSOR Replace the yaw rate and acceleration sensor. Refer to «REMOVAL»(ref-386953-S22298444782011022400000) . NEXT: Go to next step
  5. PERFORM ZERO POINT CALIBRATION OF YAW RATE AND ACCELERATION SENSOR Perform the zero point calibration of the yaw rate and acceleration sensor. Refer to «CALIBRATION»(ref-386974-S24847932002011022400000) . NEXT: Go to next step
  6. RECONFIRM DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . Turn the power switch ON (READY). Drive the vehicle and turn the steering wheel to the right and left at a speed of 35 km/h (24 mph) or more. Check if the same DTCs are recorded. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . RESULT Condition Proceed to DTCs (C1210/36 and C1336/98) are output A DTCs (C1210/36 and C1336/98) are not output B HINT: The DTCs are recorded because zero point calibration has not been completed. End the procedure since the same DTCs are not recorded after completion of zero point calibration. B --> END A --> See step 7
  7. REPLACE SKID CONTROL ECU. Refer to «REMOVAL»(ref-386953-S26247972342011022400000)
  8. INSTALL YAW RATE AND ACCELERATION SENSOR CORRECTLY. Refer to «INSTALLATION»(ref-386953-S00794912772011022400000)
  1. INSPECT BRAKE ACTUATOR ASSEMBLY Disconnect the A16 actuator connector. Measure the resistance according to the value(s) in the table below. Standard resistance Tester Connection Specified Condition 2 (BM1) - 31 (GND1) Below 10 ohms 1 (BM2) - 31 (GND1) Below 10 ohms 2 (BM1) - 1 (BM2) Below 1 ohms 31 (GND1) - 32 (GND2) Below 1 ohms 2 (BM1) - 33 (MTT) 450 to 550 ohms 1 (BM2) - 33 (MTT) 450 to 550 ohms NG --> See step 4 OK: Go to next step
  2. READ VALUE USING TECHSTREAM (ACCUMULATOR PRESSURE SENSOR) Connect the Techstream to the DLC3. Turn the power switch ON (IG). Select the Data List mode on the Techstream. ABS / VSC / TRAC: Tester Display Measurement Item/Range Normal Condition Diagnostic Note Accumulator Sensor Accumulator pressure sensor / min.: 0 V, max.: 5 V Specified value: 2.6 to 3.8 V - Depress the brake pedal 4 or 5 times to operate the pump motor, and check the output value on the Techstream with the motor stopped (not braking). OK ACC pressure sensor's output voltage does not drop. NG --> See step 4 OK: Go to next step
  3. RECONFIRM DTC Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . Turn the power switch ON (IG). Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . HINT: Reinstall the sensors, connectors, etc. and restore the vehicle to its prior condition before rechecking for DTCs. RESULT Condition Proceed to DTC (C1256/57) is not output A DTC (C1256/57) is output B B --> See step 5 A --> END
  4. REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to «REMOVAL»(ref-386953-S09619269922011022400000)
  5. REPLACE SKID CONTROL ECU. Refer to «REMOVAL»(ref-386953-S26247972342011022400000)
  1. CHECK HV CONTROL SYSTEM Check the HV control system. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-387110-S38353956282011022400000) . NEXT --> END
  1. CHECK DTC FOR VGRS SYSTEM Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-386975-S17151165742011022400000) . Check for the DTC. Refer to «DTC CHECK / CLEAR»(ref-386975-S17151165742011022400000) . RESULT Condition Proceed to DTC (VGRS system) is not output A DTC (VGRS system) is output B B --> See step 3 A: Go to next step
  2. RECONFIRM DTC Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . Turn the power switch ON (IG). Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . RESULT Condition Proceed to DTC (C1289/41) is not output A DTC (C1289/41) is output B B --> See step 1 A --> END
  3. REPAIR VGRS SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-386975-S42856375492011022400000)
  1. PERFORM ZERO POINT CALIBRATION OF YAW RATE AND ACCELERATION SENSOR Perform zero point calibration of the yaw rate and acceleration sensor. Refer to «CALIBRATION»(ref-386974-S24847932002011022400000) . HINT: When the stored zero point of the yaw rate and acceleration sensor is erased, steering angle sensor zero point will also be erased. If the zero point and output value of the yaw rate and acceleration sensor and the output value of the speed sensors are not normal, steering angle sensor zero point cannot be acquired normally even if the vehicle is driven straight ahead at 35 km/h (22 mph) or more. NEXT: Go to next step
  2. CHECK STEERING ANGLE SENSOR ZERO POINT CALIBRATION Drive the vehicle straight ahead at 35 km/h (22 mph) or more for at least 5 seconds. Check that the centered position of the steering wheel is correctly set while driving straight ahead. HINT: If front wheel alignment and steering position are adjusted as a result of an off-center steering wheel, acquire yaw rate and acceleration sensor zero point again after the adjustments are completed. OK The centered position of the steering wheel is correctly set. NG --> See step 3 OK: Go to next step
  3. ADJUST FRONT WHEEL ALIGNMENT OR STEERING POSITION. Refer to «ADJUSTMENT»(ref-386957-S37344048512011022400000)
  4. RECONFIRM DTC Turn the engine switch off. Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . RESULT Condition Proceed to DTC (C1290/66) is not output A DTC (C1290/66) is output B B --> See step 5 A --> USE SIMULATION METHOD TO CHECK
  5. REPLACE SKID CONTROL ECU. Refer to «REMOVAL»(ref-386953-S26247972342011022400000)
  1. REPLACE SKID CONTROL ECU Replace the skid control ECU. Refer to «REMOVAL»(ref-386953-S26247972342011022400000) . NEXT --> See step 2
  2. PERFORM TEST MODE (SIGNAL CHECK). Refer to «TEST MODE PROCEDURE»(ref-386974-S28092281032011022400000)
  1. CHECK DTC FOR EPS CONTROL SYSTEM Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . Check the DTC. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . RESULT Condition Proceed to DTC (EPS control system) is not output A DTC (EPS control system) is output B B --> See step 3 A: Go to next step
  2. RECONFIRM DTC Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . Turn the power switch ON (IG). Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . RESULT Condition Proceed to DTC (C1304/27) is not output A DTC (C1304/27) is output B B --> See step 1 A --> END
  3. REPAIR EPS CONTROL SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-387136-S41822211162011022400000)
  1. CHECK DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . Turn the power switch OFF. Turn the power switch ON (IG). Check that the DTCs (electronically controlled brake system and HV control system) are recorded. RESULT Condition Proceed to DTCs (except C1203/95, C1345/66, C1368/67, C1392/48, and HV control system malfunction) are not output A HV control system DTC is output B DTCs (except C1345/66 and C1368/67) are output C C --> See step 5 B --> See step 4 A: Go to next step
  2. PERFORM INITIALIZATION OF LINEAR SOLENOID VALVE AND CALIBRATION Perform initialization of the linear solenoid valve and calibration. Refer to «INITIALIZATION»(ref-386974-S22108740542011022400000) . NEXT: Go to next step
  3. RECONFIRM DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . Turn the power switch ON (IG). Check if the same DTCs are recorded. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . RESULT Condition Proceed to DTCs (C1345/66 and C1368/67) are not output A DTCs (C1345/66 and C1368/67) are output B B --> See step 6 A --> END
  4. REPAIR HV CONTROL SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-387110-S38353956282011022400000)
  5. REPAIR CIRCUIT INDICATED BY OUTPUT CODE. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-386974-S06384688152011022400000)
  6. REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to «REMOVAL»(ref-386953-S09619269922011022400000)
  1. CHECK BRAKE FLUID LEAKAGE Check that there is no fluid leakage in the brake line between the brake actuator and the wheel cylinder which is the cause of DTCs. Check that the brake is not dragging. OK There is no fluid leakage or dragging. NG --> REPAIR OR REPLACE APPLICABLE PART OK: Go to next step
  2. READ VALUE USING TECHSTREAM (ACCUMULATOR PRESSURE SENSOR) Connect the Techstream to the DLC3. Turn the power switch ON (IG). Select the Data List mode on the Techstream. ABS / VSC / TRAC: Tester Display Measurement Item/Range Normal Condition Diagnostic Note Accumulator Sensor Accumulator pressure sensor / min.: 0 V, max.: 5 V Specified value: 2.6 to 3.8 V - Wait a few minutes without operating the brake pedal. Check that the output value of the accumulator pressure sensor does not decrease and that the pump motor is not activated due to a decrease in accumulator pressure. OK Accumulator pressure does not decrease and the pump motor is not activated due to a decrease in accumulator pressure. NG --> See step 4 OK: Go to next step
  3. RECONFIRM DTC Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . Turn the power switch ON (IG). Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . RESULT Condition Proceed to DTC (C1391/69) is not output A DTC (C1391/69) is output B B --> See step 5 A --> END
  4. REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to «REMOVAL»(ref-386953-S09619269922011022400000)
  5. REPLACE SKID CONTROL ECU. Refer to «REMOVAL»(ref-386953-S26247972342011022400000)
  1. CHECK DTC Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . Turn the power switch off. Turn the power switch on (IG) again and check that no CAN communication system DTCs are output. Refer to «DIAGNOSIS SYSTEM»(ref-387091-S28049162972011022400000) . Drive the vehicle and turn the steering wheel to the right and left at a speed of 35 km/h (22 mph) and check that no speed sensor and yaw rate and acceleration sensor DTCs are output. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . Result Result Proceed to DTCs (C1439/66 and/or C1445/66) are output A CAN communication system DTC is output B Speed sensor and/or yaw rate and acceleration sensor DTC is output C DTCs (C1439/66 and C1445/66) are not output D HINT: If there is a malfunction in the speed sensor or the yaw rate and acceleration sensor, an abnormal value may be output although the steering angle sensor is normal. If the speed sensor and the yaw rate and acceleration sensor DTCs are output simultaneously, repair the sensors and inspect the steering angle sensor. If the same DTC C1439/66 and/or C1445/66 is not output again, the DTC may have been stored due to a temporary loss of the steering angle zero point calibration, such as when the power source voltage drops. D --> See step 7 C --> See step 6 B --> See step 5 A: Go to next step
  2. CHECK STEERING ANGLE SENSOR ZERO POINT CALIBRATION Drive the vehicle straight ahead at 35 km/h (22 mph) or more for at least 5 seconds. Check that the centered position of the steering wheel is correctly set while driving straight ahead. HINT: If the front wheel alignment and steering position are adjusted as a result of an off-centered position of the steering wheel, acquire yaw rate and acceleration sensor zero point again after the adjustments are completed. OK The centered position of the steering wheel is correctly set. NG --> See step 8 OK: Go to next step
  3. RECONFIRM DTC Turn the power switch off. Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . Turn the power switch ON (READY). Drive the vehicle and turn the steering wheel to the right and left at the speed of 35 km/h (22 mph) or more. Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . Result Result Proceed to DTCs (C1439/66 and/or C1445/66) are output A DTCs (C1439/66 and C1445/66) are not output B HINT: If the same DTC C1439/66 and/or C1445/66 is not output again, the DTC may have been stored due to a temporary loss of the steering angle zero point calibration, such as when the power source voltage drops. B --> END A --> See step 4
  4. REPLACE SKID CONTROL ECU. Refer to «REMOVAL»(ref-386953-S26247972342011022400000)
  5. REPAIR CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-387091-S07682503522011022400000)
  6. REPAIR CIRCUIT INDICATED BY OUTPUT CODE. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-386974-S06384688152011022400000)
  7. CHECK FOR INTERMITTENT PROBLEMS. Refer to «ELECTRONIC CIRCUIT INSPECTION PROCEDURE»(ref-386951-S41924473032011022400000)
  8. ADJUST FRONT WHEEL ALIGNMENT OR STEERING POSITION. Refer to «ADJUSTMENT»(ref-386957-S37344048512011022400000)
  1. CHECK DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . Drive the vehicle at a speed of 30 km/h (19 mph) or more, turn the steering wheel, and decelerate the vehicle (depress the brake pedal). Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . HINT: Drive the vehicle straight on a level road during the road test, and check if DTC 1440/98 and the yaw rate and acceleration sensor DTC are output again. Result Result Proceed to DTCs (C1440/98 and yaw rate and acceleration sensor DTC) are not output A DTCs (C1440/98 and/or yaw rate and acceleration sensor DTC) are output B B --> See step 2 A --> END
  2. REPAIR CIRCUIT INDICATED BY OUTPUT CODE. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-386974-S06384688152011022400000)
  1. CHECK DTC Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . Turn the power switch ON (READY). Engine running for 60 seconds, and then power switch off. Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . Result Result Proceed to DTCs (C1442/44 and/or C1443/34) are output A DTCs (C1442/44 and C1443/34) are not output B B --> See step 3 A --> See step 2
  2. REPLACE YAW RATE AND ACCELERATION SENSOR. Refer to «REMOVAL»(ref-386953-S22298444782011022400000)
  3. CHECK FOR INTERMITTENT PROBLEMS. Refer to «ELECTRONIC CIRCUIT INSPECTION PROCEDURE»(ref-386951-S41924473032011022400000)
  1. CHECK DTC Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-386974-S03953297302011022400000) . Result Result Proceed to DTCs is not output OK DTCs is output NG HINT: The CAN communication system must be normal when repairing the sensor DTCs (for ABS, VSC and electronically controlled brake system). NG --> See step 2 OK --> END
  2. GO TO CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-387091-S07682503522011022400000)
  1. INSPECT CAN COMMUNICATION SYSTEM Check if the CAN communication system DTC is output. Refer to «PROBLEM SYMPTOMS TABLE»(ref-387091-S36493006972011022400000) . RESULT Condition Proceed to DTC is not output A DTC is output B B --> See step 6 A: Go to next step
  2. INSPECT MULTIPLEX COMMUNICATION SYSTEM Check if the multiplex communication system DTC is output. Refer to «DIAGNOSIS SYSTEM»(ref-386979-S35352414382011022400000) . RESULT Condition Proceed to DTC is not output A DTC is output B B --> See step 7 A: Go to next step
  3. INSPECT ABS WARNING LIGHT Disconnect the skid control ECU connector. Turn the power switch ON (IG). Check that the ABS warning light comes on. OK ABS warning light comes on. HINT: If troubleshooting has been carried out according to the "PROBLEM SYMPTOMS TABLE", refer back to the table and proceed to the next step before replacing the part. Refer to «PROBLEM SYMPTOMS TABLE»(ref-386974-S26078765232011022400000) . NG --> See step 4 OK --> See step 5
  4. INSPECT COMBINATION METER ASSEMBLY Check the combination meter. Refer to «PROBLEM SYMPTOMS TABLE»(ref-387092-S40766910582011022400000) . HINT: If troubleshooting has been carried out according to the "PROBLEM SYMPTOMS TABLE", refer back to the table and proceed to the next step. Refer to «PROBLEM SYMPTOMS TABLE»(ref-386974-S26078765232011022400000) . NG --> See step 8 OK --> END
  5. REPLACE SKID CONTROL ECU. Refer to «REMOVAL»(ref-386953-S26247972342011022400000)
  6. REPAIR CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-387091-S07682503522011022400000)
  7. REPAIR MULTIPLEX COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-386979-S20279454612011022400000)
  8. REPLACE COMBINATION METER ASSEMBLY. Refer to «REMOVAL»(ref-387132-S01476990932011022400000)
  1. INSPECT CAN COMMUNICATION SYSTEM Check if the CAN communication system DTC is output. Refer to «PROBLEM SYMPTOMS TABLE»(ref-387091-S36493006972011022400000) . RESULT Condition Proceed to DTC is not output A DTC is output B B --> See step 6 A: Go to next step
  2. INSPECT MULTIPLEX COMMUNICATION SYSTEM Check if the multiplex communication system DTC is output. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-386979-S20279454612011022400000) . RESULT Condition Proceed to DTC is not output A DTC is output B B --> See step 7 A: Go to next step
  3. INSPECT BRAKE WARNING LIGHT Disconnect the skid control ECU connector. Turn the power switch ON (IG). Check if the brake warning light comes on. OK Brake warning light comes on. HINT: If troubleshooting has been carried out according to the "PROBLEM SYMPTOMS TABLE", refer back to the table and proceed to the next step before replacing the part. Refer to «PROBLEM SYMPTOMS TABLE»(ref-386974-S26078765232011022400000) . OK --> See step 4 NG: Go to next step
  4. REPLACE SKID CONTROL ECU. Refer to «REMOVAL»(ref-386953-S26247972342011022400000)
  5. INSPECT COMBINATION METER ASSEMBLY Check the combination meter. Refer to «PROBLEM SYMPTOMS TABLE»(ref-387092-S40766910582011022400000) . HINT: If troubleshooting has been carried out according to the PROBLEM SYMPTOMS TABLE, refer back to the table and proceed to the next step. Refer to «PROBLEM SYMPTOMS TABLE»(ref-386974-S26078765232011022400000) . NG --> See step 8 OK --> END
  6. REPAIR CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-387091-S07682503522011022400000)
  7. REPAIR MULTIPLEX COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-386979-S20279454612011022400000)
  8. REPLACE COMBINATION METER ASSEMBLY. Refer to «REMOVAL»(ref-387132-S01476990932011022400000)
  1. INSPECT CAN COMMUNICATION SYSTEM Check if a CAN communication system DTC is output. Refer to «DIAGNOSIS SYSTEM»(ref-387091-S28049162972011022400000) . Result Result Proceed to DTC is not output A DTC is output B B --> See step 6 A: Go to next step
  2. INSPECT MULTIPLEX COMMUNICATION SYSTEM Check if a multiplex communication system DTC is output. Refer to «DTC CHECK / CLEAR»(ref-386979-S23958756232011022400000) . Result Result Proceed to DTC is not output A DTC is output B B --> See step 7 A: Go to next step
  3. PERFORM ACTIVE TEST USING TECHSTREAM (TR(A)C OFF INDICATOR) Connect the Techstream to the DLC3. Turn the power switch ON (READY). Select the Active Test mode on the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-386974-S34250759722011022400000) . ABS / VSC / TRAC: Tester Display Test Part Control Range Diagnostic Note TRAC OFF Indicator Light Multi-information display (TR(A)C OFF indicator) Display ON / OFF Observe combination meter Check that the multi-information display (TR(A)C OFF indicator) on the combination meter turns on or off in accordance with the Techstream operation. OK The multi-information display (TR(A)C OFF indicator) turns on or off in accordance with the Techstream operation. HINT: If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part. Refer to «PROBLEM SYMPTOMS TABLE»(ref-386974-S26078765232011022400000) . NG --> See step 4 OK --> See step 5
  4. INSPECT COMBINATION METER ASSEMBLY Turn the power switch off. Perform the Active Test of the combination meter (meter CPU) using the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-387092-S39035019132011022400000) . Check the combination meter. OK The multi-information display (TR(A)C OFF indicator) turns on or off in accordance with the Techstream operation. HINT: If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step. Refer to «PROBLEM SYMPTOMS TABLE»(ref-386974-S26078765232011022400000) . NG --> See step 8 OK --> See step 5
  5. REPLACE SKID CONTROL ECU. Refer to «REMOVAL»(ref-386953-S26247972342011022400000)
  6. REPAIR CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-387091-S07682503522011022400000)
  7. REPAIR MULTIPLEX COMMUNICATION SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-386979-S33914524662011022400000)
  8. REPLACE COMBINATION METER ASSEMBLY. Refer to «REMOVAL»(ref-387132-S01476990932011022400000)
  1. INSPECT CAN COMMUNICATION SYSTEM Check if the CAN communication system DTC is output. Refer to «DIAGNOSIS SYSTEM»(ref-387091-S28049162972011022400000) . RESULT Condition Proceed to DTC is not output A DTC is output B B --> See step 7 A: Go to next step
  2. INSPECT MULTIPLEX COMMUNICATION SYSTEM Check if the multiplex communication system DTC is output. Refer to «DIAGNOSIS SYSTEM»(ref-386979-S35352414382011022400000) . RESULT Condition Proceed to DTC is not output A DTC is output B B --> See step 8 A: Go to next step
  3. INSPECT IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED Check the skid control ECU connector's connection. OK The connector is securely connected. NG --> See step 9 OK: Go to next step
  4. INSPECT BATTERY Check the battery voltage. Standard voltage 10 to 14 V NG --> See step 10 OK: Go to next step
  5. INSPECT COMBINATION METER ASSEMBLY Check the combination meter. Refer to «PROBLEM SYMPTOMS TABLE»(ref-387092-S40766910582011022400000) . HINT: If troubleshooting has been carried out according to the "PROBLEM SYMPTOMS TABLE", refer back to the table and proceed to the next step before replacing the part. Refer to «PROBLEM SYMPTOMS TABLE»(ref-386974-S26078765232011022400000) . NG --> See step 11 OK --> See step 6
  6. REPLACE SKID CONTROL ECU. Refer to «REMOVAL»(ref-386953-S26247972342011022400000)
  7. REPAIR CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-387091-S07682503522011022400000)
  8. REPAIR MULTIPLEX COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-386979-S20279454612011022400000)
  9. CONNECT CONNECTOR TO ECU CORRECTLY. Refer to «ELECTRONIC CIRCUIT INSPECTION PROCEDURE»(ref-386951-S41924473032011022400000)
  10. INSPECT CHARGING SYSTEM. Refer to «ON-VEHICLE INSPECTION»(ref-387115-S19796673442011022400000)
  11. REPLACE COMBINATION METER ASSEMBLY. Refer to «REMOVAL»(ref-387132-S01476990932011022400000)
  1. INSPECT CAN COMMUNICATION SYSTEM Check if the CAN communication system DTC is output. Refer to «DIAGNOSIS SYSTEM»(ref-387091-S28049162972011022400000) . RESULT Condition Proceed to DTC is not output A DTC is output B B --> See step 6 A: Go to next step
  2. INSPECT MULTIPLEX COMMUNICATION SYSTEM Check if the multiplex communication system DTC is output. Refer to «DIAGNOSIS SYSTEM»(ref-386979-S35352414382011022400000) . RESULT Condition Proceed to DTC is not output A DTC is output B B --> See step 7 A: Go to next step
  3. PERFORM ACTIVE TEST USING TECHSTREAM (BRAKE CONTROL WARNING LIGHT) Connect the Techstream to the DLC3. Turn the power switch ON (IG). Select the "ECB* Warning Light" in the Active Test and operate the brake control warning light by the Techstream. ABS / VSC / TRAC: Tester Display Test Part Control Range Diagnostic Note ECB* Warning Light Brake control warning light Warning light ON / OFF Observe combination meter *: Electronically Controlled Brake Check that "ON" and "OFF" of the brake control warning light is indicated on the combination meter when using the Techstream. OK The brake control warning light turns on or off in accordance with the Techstream. HINT: If troubleshooting has been carried out according to the PROBLEM SYMPTOMS TABLE, refer back to the table and proceed to the next step before replacing the part. Refer to «PROBLEM SYMPTOMS TABLE»(ref-386974-S26078765232011022400000) . OK --> See step 4 NG: Go to next step
  4. REPLACE SKID CONTROL ECU. Refer to «REMOVAL»(ref-386953-S26247972342011022400000)
  5. INSPECT COMBINATION METER ASSEMBLY Check the combination meter. Refer to «PROBLEM SYMPTOMS TABLE»(ref-387092-S40766910582011022400000) . HINT: If troubleshooting has been carried out according to the "PROBLEM SYMPTOMS TABLE", refer back to the table and proceed to the next step before replacing the part. Refer to «PROBLEM SYMPTOMS TABLE»(ref-386974-S26078765232011022400000) . NG --> See step 8 OK --> END
  6. REPAIR CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-387091-S07682503522011022400000)
  7. REPAIR MULTIPLEX COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-386979-S20279454612011022400000)
  8. REPLACE COMBINATION METER ASSEMBLY. Refer to «REMOVAL»(ref-387132-S01476990932011022400000)
  1. CHECK CAN COMMUNICATION SYSTEM Check if a CAN communication system DTC is output. Refer to «DIAGNOSIS SYSTEM»(ref-387091-S28049162972011022400000) . Result Condition Proceed to DTC is not output A DTC is output B B --> See step 6 A: Go to next step
  2. CHECK MULTIPLEX COMMUNICATION SYSTEM Check if a multiplex communication system DTC is output. Refer to «DTC CHECK / CLEAR»(ref-386979-S23958756232011022400000) . Result Condition Proceed to DTC is not output A DTC is output B B --> See step 7 A: Go to next step
  3. PERFORM ACTIVE TEST USING TECHSTREAM (VSC OFF INDICATOR LIGHT) Connect the Techstream to the DLC3. Turn the power switch ON (READY). Select the Active Test mode on the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-386974-S34250759722011022400000) . ABS / VSC / TRAC: Tester Display Test Part Control Range Diagnostic Note VSC OFF Indicator Light VSC OFF indicator light Indicator light ON / OFF Observe combination meter Check that the VSC OFF indicator light on the combination meter turns on or off in accordance with the Techstream operation. OK The VSC OFF indicator light turns on or off in accordance with the Techstream operation. HINT: If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part. Refer to «PROBLEM SYMPTOMS TABLE»(ref-386974-S26078765232011022400000) . NG --> See step 4 OK --> See step 5
  4. INSPECT COMBINATION METER ASSEMBLY Turn the power switch off. Perform the Active Test of the combination meter (meter CPU) using the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-387092-S39035019132011022400000) . Check the combination meter. OK The VSC OFF indicator light turns on or off in accordance with the Techstream operation. HINT: If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step. Refer to «PROBLEM SYMPTOMS TABLE»(ref-386974-S26078765232011022400000) . NG --> See step 8 OK --> See step 5
  5. REPLACE SKID CONTROL ECU. Refer to «REMOVAL»(ref-386953-S26247972342011022400000)
  6. REPAIR CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-387091-S07682503522011022400000)
  7. REPAIR MULTIPLEX COMMUNICATION SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-386979-S33914524662011022400000)
  8. REPLACE COMBINATION METER ASSEMBLY. Refer to «REMOVAL»(ref-387132-S01476990932011022400000)
  1. CHECK CAN COMMUNICATION SYSTEM Check if a CAN communication system DTC is output. Refer to «DIAGNOSIS SYSTEM»(ref-387091-S28049162972011022400000) . Result Condition Proceed to DTC is not output A DTC is output B B --> See step 7 A: Go to next step
  2. CHECK MULTIPLEX COMMUNICATION SYSTEM Check if a multiplex communication system DTC is output. Refer to «DTC CHECK / CLEAR»(ref-386979-S23958756232011022400000) . Result Condition Proceed to DTC is not output A DTC is output B B --> See step 8 A: Go to next step
  3. CHECK IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED Check if the skid control ECU connector is securely connected. OK The connector is securely connected. NG --> See step 9 OK: Go to next step
  4. CHECK BATTERY Check the battery voltage. Standard voltage 10 to 14 V NG --> See step 10 OK: Go to next step
  5. INSPECT COMBINATION METER ASSEMBLY Perform the Active Test of the combination meter (meter CPU) using the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-387092-S39035019132011022400000) . Check the combination meter. OK The slip indicator light turns on or off in accordance with Techstream operation. HINT: If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part. Refer to «PROBLEM SYMPTOMS TABLE»(ref-386974-S26078765232011022400000) . NG --> See step 11 OK --> See step 6
  6. REPLACE SKID CONTROL ECU. Refer to «REMOVAL»(ref-386953-S26247972342011022400000)
  7. REPAIR CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-387091-S07682503522011022400000)
  8. REPAIR MULTIPLEX COMMUNICATION SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-386979-S33914524662011022400000)
  9. CONNECT CONNECTOR TO ECU CORRECTLY. Refer to «ELECTRONIC CIRCUIT INSPECTION PROCEDURE»(ref-386951-S41924473032011022400000)
  10. INSPECT CHARGING SYSTEM. Refer to «ON-VEHICLE INSPECTION»(ref-387115-S19796673442011022400000)
  11. REPLACE COMBINATION METER ASSEMBLY. Refer to «REMOVAL»(ref-387132-S01476990932011022400000)
  1. CHECK CAN COMMUNICATION SYSTEM Check if a CAN communication system DTC is output. Refer to «DIAGNOSIS SYSTEM»(ref-387091-S28049162972011022400000) . Result Condition Proceed to DTC is not output A DTC is output B B --> See step 5 A: Go to next step
  2. CHECK MULTIPLEX COMMUNICATION SYSTEM Check if a multiplex communication system DTC is output. Refer to «DTC CHECK / CLEAR»(ref-386979-S23958756232011022400000) . Result Condition Proceed to DTC is not output A DTC is output B B --> See step 6 A: Go to next step
  3. PERFORM ACTIVE TEST USING TECHSTREAM (SLIP INDICATOR LIGHT) Connect the Techstream to the DLC3. Turn the power switch ON (IG). Select the Active Test mode on the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-386974-S34250759722011022400000) . ABS / VSC / TRAC: Tester Display Test Part Control Range Diagnostic Note Slip Indicator Light Slip indicator light Indicator light ON / OFF Observe combination meter Check that the slip indicator light on the combination meter turns on or off in accordance with Techstream operation. OK The slip indicator light turns on or off in accordance with Techstream operation. HINT: If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part. Refer to «PROBLEM SYMPTOMS TABLE»(ref-386974-S26078765232011022400000) . NG --> See step 4 OK --> See step 7
  4. INSPECT COMBINATION METER ASSEMBLY Perform the Active Test of the combination meter (meter CPU) using the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-387092-S39035019132011022400000) . Check the combination meter. OK The slip indicator light turns on or off in accordance with Techstream operation. HINT: If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step. Refer to «PROBLEM SYMPTOMS TABLE»(ref-386974-S26078765232011022400000) . NG --> See step 8 OK --> See step 7
  5. REPAIR CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-387091-S07682503522011022400000)
  6. REPAIR MULTIPLEX COMMUNICATION SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-386979-S33914524662011022400000)
  7. REPLACE SKID CONTROL ECU. Refer to «REMOVAL»(ref-386953-S26247972342011022400000)
  8. REPLACE COMBINATION METER ASSEMBLY. Refer to «REMOVAL»(ref-387132-S01476990932011022400000)

More articles — Electronically Controlled Brake System (Diagnostic Codes & Circuit Tests)