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Contents Wiring diagrams Section: Anti-Lock/traction Control All sections

Electronically Controlled Brake (Diagnostic Codes & Symptom Tests): Other Lexus HS I

Anti-Lock/traction Control ~10376 words

PROCEDURE

  1. CHECK ABS CONTROL SYSTEM Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Turn the power switch on (READY). Drive the vehicle at a speed of approximately 40 km/h (25 mph) or more for 60 seconds or more. Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTC (ABS control system DTC) is not output A DTC (ABS control system DTC) is output B B --> See step 4 A: Go to next step
  2. RECONFIRM DTC Turn the power switch off. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Turn the power switch on (READY). Drive the vehicle at a speed of approximately 40 km/h (25 mph) or more for 60 seconds or more. Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTCs (36 and 43) are not output A DTCs (36 and/or 43) are output B B --> See step 5 A --> See step 3
  3. CHECK FOR INTERMITTENT PROBLEMS. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398089-S18270818032011051600000)
  4. REPAIR CIRCUITS INDICATED BY OUTPUT DTCS. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398097-S01025085302011051600000)
  5. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  1. CHECK ELECTRONICALLY CONTROLLED BRAKE SYSTEM Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Turn the power switch on (READY). Drive the vehicle at a speed of approximately 40 km/h (25 mph) or more for 60 seconds or more. Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTC (Electronically controlled brake system DTC) is not output A DTC (Electronically controlled brake system DTC) is output B B --> See step 4 A: Go to next step
  2. RECONFIRM DTC Turn the power switch off. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Turn the power switch on (READY). Drive the vehicle at a speed of approximately 40 km/h (25 mph) or more for 60 seconds or more. Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTCs (42 and 45) are not output A DTCs (42 and/or 45) are output B B --> See step 5 A --> See step 3
  3. CHECK FOR INTERMITTENT PROBLEMS. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398089-S18270818032011051600000)
  4. REPAIR CIRCUITS INDICATED BY OUTPUT DTCS. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398097-S01025085302011051600000)
  5. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  1. CHECK PART NUMBER Check that a proper hybrid vehicle control ECU, main body ECU and yaw rate and acceleration sensor are installed. OK Proper ECUs and sensor are installed. Check if the hybrid vehicle control ECU, main body ECU and yaw rate and acceleration sensor had been replaced before the DTC was recorded. OK ECU or sensor had not been replaced. Result Result Proceed to OK A NG (A proper hybrid vehicle control ECU is not installed and/or the hybrid vehicle control ECU had been replaced) B NG (A proper main body ECU is not installed and/or the main body ECU had been replaced) C NG (A proper yaw rate and acceleration sensor is not installed and/or the yaw rate and acceleration sensor had been replaced) D D --> See step 7 C --> See step 6 B --> See step 5 A: Go to next step
  2. PERFORM INITIALIZATION AND CALIBRATION OF LINEAR SOLENOID VALVE Perform initialization and calibration of the linear solenoid valve. Refer to «INITIALIZATION»(ref-398097-S34109725512011051600000) . HINT: Before performing initialization and calibration of the linear solenoid valve, C1203/95 will be output. NEXT: Go to next step
  3. RECONFIRM DTC Turn the power switch off. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Turn the power switch on (IG). Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTC (C1203/95) is output A DTC (C1203/95) is not output B B --> END A --> See step 4
  4. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  5. REPLACE HYBRID VEHICLE CONTROL ECU. Refer to «REMOVAL»(ref-398232-S36824664312011051600000)
  6. REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK). Refer to «REMOVAL»(ref-398241-S22735242352011051600000)
  7. REPLACE YAW RATE AND ACCELERATION SENSOR. Refer to «REMOVAL»(ref-398283-S41088538692011051600000)
  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-398097-S11353765862011051600000) . NEXT: Go to next step
  2. RECONFIRM DTC Turn the power switch off. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Turn the power switch on (READY). Drive the vehicle at a speed of 30 km/h (18 mph) or more, turn the steering wheel, and decelerate (depress the brake pedal) the vehicle. Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTCs (C1210/36 and/or 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 because the same DTCs are not recorded after completion of zero point calibration. B --> END A: Go to next step
  3. CHECK YAW RATE AND ACCELERATION SENSOR INSTALLATION Turn the power switch off. Check that the yaw rate and acceleration sensor has been installed properly. Refer to «INSTALLATION»(ref-398283-S29490234522011051600000) . OK The sensor is tightened to the specified torque. The sensor is not tilted. NG --> See step 7 OK: Go to next step
  4. REPLACE YAW RATE AND ACCELERATION SENSOR Replace the yaw rate and acceleration sensor. Refer to «REMOVAL»(ref-398283-S41088538692011051600000) . NOTE: Check the yaw rate and acceleration sensor signal after replacement. Refer to «TEST MODE PROCEDURE»(ref-398097-S15603599552011051600000) . NEXT: Go to next step
  5. RECONFIRM DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Turn the power switch on (READY). Drive the vehicle at a speed of 30 km/h (18 mph) or more, turn the steering wheel, and decelerate (depress the brake pedal) the vehicle. Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTCs (C1210/36 and/or C1336/98) are output A DTCs (C1210/36 and C1336/98) are not output B B --> END A --> See step 6
  6. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  7. INSTALL YAW RATE AND ACCELERATION SENSOR CORRECTLY. Refer to «INSTALLATION»(ref-398283-S29490234522011051600000)
  1. CHECK DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . HINT: If a DTC for undervoltage is output, first troubleshoot the power source system. Result Result Proceed to DTCs (C1211/25, C1212/26, C1225/31, C1226/32, C1227/33, C1228/34, C1352/21, C1353/23, C1356/22 and C1357/24) are not output A A DTC (C1241/41) for undervoltage is output B DTCs (C1211/25, C1212/26, C1225/31, C1226/32, C1227/33, C1228/34, C1352/21, C1353/23, C1356/22 and/or C1357/24) are output C C --> See step 4 B --> See step 3 A --> See step 2
  2. CHECK FOR INTERMITTENT PROBLEMS. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398089-S18270818032011051600000)
  3. REPAIR CIRCUITS INDICATED BY OUTPUT DTCS. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398097-S01025085302011051600000)
  4. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  1. CHECK FOR FLUID LEAK Check that there is no fluid leaks in the brake line between the brake actuator and the wheel cylinder. Check that the brake is not dragging. OK There is no fluid leaks or dragging. NG --> REPAIR OR REPLACE APPLICABLE PART OK: Go to next step
  2. PERFORM AIR BLEEDING Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Perform the air bleeding procedure in Bleed Brake System. Refer to «BLEEDING - Step 2»(ref-398212-S21353879102011051600000) . NEXT: Go to next step
  3. CHECK BRAKE BOOSTER WITH MASTER CYLINDER (ACTUATOR SIDE) Make sure that there is no looseness at the locking part and the connecting part of the connectors. Disconnect the skid control ECU connector 2 minutes after the power switch is turned off. Check both the connector case and the terminal for deformation and corrosion. OK No deformation or corrosion. NG --> See step 8 OK: Go to next step
  4. CHECK HARNESS AND CONNECTOR (VEHICLE SIDE) Measure the voltage and resistance on the wire harness side. Refer to «TERMINALS OF ECU»(ref-398097-S38569139852011051600000) . OK Voltage and resistance readings are all normal. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  5. READ VALUE USING TECHSTREAM (WHEEL CYLINDER PRESSURE SENSOR) Reconnect the skid control ECU connector. Connect a pedal effort gauge. Refer to «ON-VEHICLE INSPECTION»(ref-398290-S25680292472011051600000) . Connect the Techstream to the DLC3. Turn the power switch on (IG). Select the Data List on the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-398097-S36405419582011051600000) . ABS/VSC/TRAC Tester Display Measurement Item/Range Normal Condition Diagnostic Note Wheel Cylinder Pressure Sensor Wheel cylinder pressure sensor / Min.: 0 V, Max.: 5 V When brake pedal released: 0.1 to 0.9 V Reading increases when brake pedal is depressed Check the output value of the wheel cylinder pressure sensor at each hydraulic pressure level during the electronically controlled brake system control. Standard Voltage for Front Wheel Cylinder Pressure Sensor LH for Front Wheel Cylinder Pressure Sensor RH Hydraulic Pressure (MPa (kgf/cm 2 , psi)) Wheel Cylinder Pressure Sensor (V) 2.0 (20.4, 290) 0.53 to 1.33 5.0 (51.0, 725) 1.12 to 1.92 7.0 (71.4, 1015) 1.52 to 2.32 10.0 (102.0, 1451) 2.14 to 2.94 Hydraulic Pressure (MPa (kgf/cm 2 , psi)) Wheel Cylinder Pressure Sensor (V) 2.0 (20.4, 290) 0.53 to 1.33 5.0 (51.0, 725) 1.12 to 1.92 7.0 (71.4, 1015) 1.52 to 2.32 10.0 (102.0, 1451) 2.14 to 2.94 NG --> See step 8 OK: Go to next step
  6. CHECK BRAKE DISC Turn the power switch off. Disconnect the brake pedal stroke sensor connector. Perform a road test according to Freeze Frame Data or customer problem analysis. Check the brake line pressure vibration caused due to uneven wear of the disc according to brake pedal vibration. OK Brake pedal does not vibrate during braking. HINT: An unevenly worn disc may vibrate the caliper piston and cause fluctuations in brake line pressure, triggering a malfunction detection condition. The brake pedal does not kick back due to wheel cylinder piston vibration during electronically controlled brake system control. If the brake pedal stroke sensor connector is disconnected, the fail-safe function will prohibit electronically controlled brake system control. The Active Test does not prohibit electronically controlled brake system control when driving the vehicle, so disconnect the stroke sensor connector before continuing with inspection. Disc uneven wear can be checked by measuring the disc thickness variation. Refer to «INSPECTION»(ref-398221-S04328254372011051600000) for front, or. Refer to «INSPECTION»(ref-398222-S32942146302011051600000) for rear). NG --> REPLACE BRAKE DISC OK: Go to next step
  7. RECONFIRM DTC Reconnect the brake pedal stroke sensor connector. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Perform a road test under the same malfunction conditions recreated based on the Freeze Frame Data or customer problem analysis. Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTC (C1214/62) is not output A DTC (C1214/62) is output B HINT: If the DTC is no longer output, it can be suspected that it was output due to an improperly connected connector. B --> See step 8 A --> See step 9
  8. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  9. CHECK FOR INTERMITTENT PROBLEMS. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398089-S18270818032011051600000)
  1. CHECK DTC Check that no speed sensor malfunction DTC is output. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . HINT: When C0200/31, C0205/32, C0210/33, and/or C0215/34 are output together with C1235/35, C1236/36, C1238/38, and/or C1239/39, inspect and repair the trouble areas indicated by C0200/31, C0205/32, C0210/33, and/or C0215/34 first. Result Result Proceed to DTCs (C1235/35 and/or C1236/36) are output A DTCs (C1238/38 and C1239/39) are output B Speed sensor malfunction DTCs (C0200/31, C0205/32, C0210/33 and/or C0215/34) are output C C --> See step 17 B --> See step 10 A: Go to next step
  2. CHECK FRONT SPEED SENSOR AND FRONT SPEED SENSOR ROTOR Remove the front speed sensor and front speed sensor rotor. Refer to «REMOVAL»(ref-398283-S31775659082011051600000) and. Refer to «REMOVAL»(ref-398281-S20990320642011051600000) ). Check the speed sensor tip and speed sensor rotor. OK The sensor tip and rotor is free of scratches, oil, and foreign matter. NOTE: Check the speed sensor signal after cleaning or replacement. Refer to «TEST MODE PROCEDURE»(ref-398097-S15603599552011051600000) . NG --> CLEAN OR REPLACE FRONT SPEED SENSOR AND FRONT SPEED SENSOR ROTOR OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - FRONT SPEED SENSOR) Install the front speed sensor and front speed sensor rotor. Make sure that there is no looseness at the locking part and the connecting part of the connectors. Disconnect the skid control ECU connector and the front speed sensor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance for RH for LH Tester Connection Condition Specified Condition A60-18 (FR+) - A38-2 (FR+) Always Below 1 ohms A60-18 (FR+) - Body ground Always 10 kohms or higher A60-5 (FR-) - A38-1 (FR-) Always Below 1 ohms A60-5 (FR-) - Body ground Always 10 kohms or higher Tester Connection Condition Specified Condition A60-31 (FL+) - A20-2 (FL+) Always Below 1 ohms A60-31 (FL+) - Body ground Always 10 kohms or higher A60-32 (FL-) - A20-1 (FL-) Always Below 1 ohms A60-32 (FL-) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. INSPECT SKID CONTROL ECU (SENSOR OUTPUT) Reconnect the skid control ECU connector. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage for RH for LH Tester Connection Switch Condition Specified Condition A38-2 (FR+) - Body ground Power switch on (IG) 5.7 to 14 V Tester Connection Switch Condition Specified Condition A20-2 (FL+) - Body ground Power switch on (IG) 5.7 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Front Speed Sensor) NG --> See step 16 OK: Go to next step
  5. RECONFIRM DTC Turn the power switch off. Reconnect the front speed sensor connector. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Turn the power switch on (READY). Drive the vehicle at a speed of 20 km/h (12 mph) or more for at least 15 seconds. Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTCs (C1235/35 and/or C1236/36) are output A DTCs (C1235/35 and C1236/36) are not output B B --> See step 18 A: Go to next step
  6. REPLACE FRONT SPEED SENSOR Turn the power switch off. Replace the front speed sensor. Refer to «REMOVAL»(ref-398283-S31775659082011051600000) . NOTE: Check the speed sensor signal after replacement. Refer to «TEST MODE PROCEDURE»(ref-398097-S15603599552011051600000) . NEXT: Go to next step
  7. RECONFIRM DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Turn the power switch on (READY). Drive the vehicle at a speed of 20 km/h (12 mph) or more for at least 15 seconds. Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTCs (C1235/35 and/or C1236/36) are output A DTCs (C1235/35 and C1236/36) are not output B B --> END A: Go to next step
  8. REPLACE FRONT SPEED SENSOR ROTOR Turn the power switch off. Replace the front axle hub sub-assembly (front speed sensor rotor). Refer to «REMOVAL»(ref-398281-S20990320642011051600000) . HINT: The front speed sensor rotor is incorporated into the front axle hub sub-assembly. If the front speed sensor rotor needs to be replaced, replace it together with the front axle hub sub-assembly. NOTE: Check the speed sensor signal after replacement. Refer to «TEST MODE PROCEDURE»(ref-398097-S15603599552011051600000) . NEXT: Go to next step
  9. RECONFIRM DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Turn the power switch on (READY). Drive the vehicle at a speed of 20 km/h (12 mph) or more for at least 15 seconds. Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTCs (C1235/35 and/or C1236/36) are output A DTCs (C1235/35 and C1236/36) are not output B B --> END A --> See step 16
  10. CHECK HARNESS AND CONNECTOR (SKID CONTROL SENSOR WIRE) Make sure that there is no looseness at the locking part and the connecting part of the connectors. Disconnect the rear speed sensor connector and the skid control sensor wire. Measure the resistance according to the value(s) in the table below. Standard Resistance for RH for LH Tester Connection Condition Specified Condition z4 ("A"-2) - z4 ("B"-1) Always Below 1 ohms z4 ("A"-2) - z4 ("B"-2) Always 10 kohms or higher z4 ("A"-2) - Body ground Always 10 kohms or higher z4 ("A"-1) - z4 ("B"-2) Always Below 1 ohms z4 ("A"-1) - z4 ("B"-1) Always 10 kohms or higher z4 ("A"-1) - Body ground Always 10 kohms or higher Tester Connection Condition Specified Condition z3 ("A"-2) - z3 ("B"-1) Always Below 1 ohms z3 ("A"-2) - z3 ("B"-2) Always 10 kohms or higher z3 ("A"-2) - Body ground Always 10 kohms or higher z3 ("A"-1) - z3 ("B"-2) Always Below 1 ohms z3 ("A"-1) - z3 ("B"-1) Always 10 kohms or higher z3 ("A"-1) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of skid control sensor wire *2 for RH *3 for LH *4 Front view of wire harness connector (to Sensor Side Connector "A") *5 Front view of wire harness connector (to Vehicle Side Connector "B") NOTE: Check the speed sensor signal after replacement. Refer to «TEST MODE PROCEDURE»(ref-398097-S15603599552011051600000) . NG --> See step 19 OK: Go to next step
  11. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - SKID CONTROL SENSOR WIRE) Make sure that there is no looseness at the locking part and the connecting part of the connector. Disconnect the skid control ECU connector. Measure the resistance according to the value(s) in the table below. Standard Resistance for RH for LH Tester Connection Condition Specified Condition A60-22 (RR+) - A1 (RR+) Always Below 1 ohms A60-22 (RR+) - Body ground Always 10 kohms or higher A60-9 (RR-) - A2 (RR-) Always Below 1 ohms A60-9 (RR-) - Body ground Always 10 kohms or higher Tester Connection Condition Specified Condition A60-20 (RL+) - B1 (RL+) Always Below 1 ohms A60-20 (RL+) - Body ground Always 10 kohms or higher A60-7 (RL-) - B2 (RL-) Always Below 1 ohms A60-7 (RL-) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  12. INSPECT SKID CONTROL ECU (SENSOR OUTPUT) Reconnect the skid control ECU connector. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage for RH for LH Tester Connection Switch Condition Specified Condition A1 (RR+) - Body ground Power switch on (IG) 5.7 to 14 V Tester Connection Switch Condition Specified Condition B1 (RL+) - Body ground Power switch on (IG) 5.7 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Skid Control Sensor Wire) NG --> See step 16 OK: Go to next step
  13. RECONFIRM DTC Turn the power switch off. Reconnect the rear speed sensor connector and the skid control sensor wire. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Turn the power switch on (READY). Drive the vehicle at a speed of 20 km/h (12 mph) or more for at least 15 seconds. Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTCs (C1238/38 and/or C1239/39) are output A DTCs (C1238/38 and C1239/39) are not output B B --> See step 18 A: Go to next step
  14. REPLACE REAR SPEED SENSOR AND REAR SPEED SENSOR ROTOR Turn the power switch off. Replace the rear speed sensor and the rear axle hub and bearing assembly (rear speed sensor rotor). Refer to «REMOVAL»(ref-398283-S36577612732011051600000) . HINT: The rear speed sensor rotor is incorporated into the rear axle hub and bearing assembly. If the rear speed sensor rotor needs to be replaced, replace it together with the rear axle hub and bearing assembly with rear speed sensor. NOTE: Check the speed sensor signal after replacement. Refer to «TEST MODE PROCEDURE»(ref-398097-S15603599552011051600000) . NEXT: Go to next step
  15. RECONFIRM DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Turn the power switch on (READY). Drive the vehicle at a speed of 20 km/h (12 mph) or more for at least 15 seconds. Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTCs (C1238/38 and/or C1239/39) are output A DTCs (C1238/38 and C1239/39) are not output B B --> END A --> See step 16
  16. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  17. REPAIR CIRCUITS INDICATED BY OUTPUT DTCS. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398097-S01025085302011051600000)
  18. CHECK FOR INTERMITTENT PROBLEMS. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398089-S18270818032011051600000)
  19. REPLACE SKID CONTROL SENSOR WIRE. Refer to «REMOVAL»(ref-398283-S36577612732011051600000)
  1. READ VALUE USING TECHSTREAM (REGULATOR PRESSURE SENSOR) Set a pedal effort gauge and LSPV gauge to the rear wheel. Refer to «ON-VEHICLE INSPECTION»(ref-398290-S25680292472011051600000) . Connect the Techstream to the DLC3. Turn the power switch on (IG). Select the Data List on the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-398097-S36405419582011051600000) . ABS/VSC/TRAC Tester Display Measurement Item/Range Normal Condition Diagnostic Note Regulator Pressure Sensor Output Regulator pressure sensor output / Min.: 0 V, Max.: 5 V When brake pedal released: 0.1 to 0.9 V Reading increases when brake pedal is depressed Check the output value of the regulator pressure sensor as the brake pedal is depressed. Standard Voltage Brake Effort (N (kgf, lbf)) Regulator Pressure Sensor Output (V) Rear Right Wheel Hydraulic Pressure (MPa (kgf/cm 2 , psi)) Rear Left Wheel Hydraulic Pressure (MPa (kgf/cm 2 , psi)) 100 (10.2, 22.5) 1.35 to 2.15 4.10 to 8.10 (41.8 to 82.5, 595 to 1174) 4.10 to 8.10 (41.8 to 82.5, 595 to 1174) 200 (20.4, 45.0) 3.00 to 3.80 12.20 to 16.20 (124.4 to 165.1, 1770 to 2349) 12.20 to 16.20 (124.4 to 165.1, 1770 to 2349) NG --> See step 6 OK: Go to next step
  2. READ VALUE USING TECHSTREAM (WHEEL CYLINDER PRESSURE SENSOR) Set a LSPV gauge to the front wheel. Refer to «ON-VEHICLE INSPECTION»(ref-398290-S25680292472011051600000) . Select the Data List on the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-398097-S36405419582011051600000) . ABS/VSC/TRAC Tester Display Measurement Item/Range Normal Condition Diagnostic Note Wheel Cylinder Pressure Sensor Wheel cylinder pressure sensor / Min.: 0 V, Max.: 5 V When brake pedal released: 0.1 to 0.9 V Reading increases when brake pedal is depressed Check the output value of the wheel cylinder pressure sensor at each hydraulic pressure during electronically controlled brake system control. Standard Voltage for Front Wheel Cylinder Pressure Sensor LH for Front Wheel Cylinder Pressure Sensor RH Hydraulic Pressure (MPa (kgf/cm 2 , psi)) Wheel Cylinder Pressure Sensor (V) 2.0 (20.4, 290) 0.53 to 1.33 5.0 (51.0, 725) 1.12 to 1.92 7.0 (71.4, 1015) 1.52 to 2.32 10.0 (102.0, 1451) 2.14 to 2.94 Hydraulic Pressure (MPa (kgf/cm 2 , psi)) Wheel Cylinder Pressure Sensor (V) 2.0 (20.4, 290) 0.53 to 1.33 5.0 (51.0, 725) 1.12 to 1.92 7.0 (71.4, 1015) 1.52 to 2.32 10.0 (102.0, 1451) 2.14 to 2.94 NG --> See step 6 OK: Go to next step
  3. READ VALUE USING TECHSTREAM (BRAKE PEDAL STROKE SENSOR AND PRESSURE SENSOR COMPARISON) Set a pedal effort gauge and LSPV gauge to the front and rear wheels. Refer to «ON-VEHICLE INSPECTION»(ref-398290-S25680292472011051600000) . Select the Data List on the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-398097-S36405419582011051600000) . ABS/VSC/TRAC Tester Display Measurement Item/Range Normal Condition Diagnostic Note Stroke Sensor Brake pedal stroke sensor / Min.: 0 V, Max.: 5 V When brake pedal released: 0.65 to 1.35 V Reading increases when brake pedal is depressed Stroke Sensor2 Brake pedal stroke sensor 2 / Min.: 0 V, Max.: 5 V When brake pedal released: 3.65 to 4.35 V Reading decreases when brake pedal is depressed Regulator Pressure Sensor Output Regulator pressure sensor output / Min.: 0 V, Max.: 5 V When brake pedal released: 0.1 to 0.9 V Reading increases when brake pedal is depressed Wheel Cylinder Pressure Sensor Wheel cylinder pressure sensor / Min.: 0 V, Max.: 5 V When brake pedal released: 0.1 to 0.9 V Reading increases when brake pedal is depressed Check the output value of the brake pedal stroke sensor as the brake pedal is depressed. Standard Voltage Brake Effort (N (kgf, lbf)) Stroke Sensor (V) Stroke Sensor2 (V) Regulator Pressure Sensor Output (V) Wheel Cylinder Pressure Sensor (V) 100 (10.2, 22.5) 1.10 to 1.80 3.20 to 3.90 1.35 to 2.15 1.17 to 1.97 200 (20.4, 45.0) 1.45 to 2.15 2.85 to 3.55 3.00 to 3.80 2.58 to 3.38 NG --> See step 7 OK: Go to next step
  4. RECONFIRM DTC Turn the power switch off. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Perform a road test. Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTCs (C1246/46 and C1364/61) are not output A DTCs (C1246/46 and/or C1364/61) are output B B --> See step 6 A --> See step 5
  5. CHECK FOR INTERMITTENT PROBLEMS. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398089-S18270818032011051600000)
  6. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  7. REPLACE BRAKE PEDAL STROKE SENSOR. Refer to «REMOVAL»(ref-398283-S40231172782011051600000)
  1. BRAKE PROBLEM CHECK Ask the customer if frequent braking was performed while the brake warning light / yellow (minor malfunction) was on. OK Result Proceed to Frequent braking was not performed A Frequent braking was performed B HINT: This DTC is output even if the accumulator pressure drops only temporarily due to frequent braking. B --> END A: Go to next step
  2. INSPECT BRAKE BOOSTER PUMP Make sure that there is no looseness at the locking part and the connecting part of the connectors. Disconnect the brake booster pump connectors. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A45-1 (BM1) - A45-2 (GND1) Always Below 10 ohms A46-2 (BM2) - A46-1 (GND2) Always Below 10 ohms A45-1 (BM1) - A46-2 (BM2) Always Below 1 ohms A45-2 (GND1) - A46-1 (GND2) Always Below 1 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Brake Booster Pump) NG --> See step 6 OK: Go to next step
  3. READ VALUE USING TECHSTREAM (ACCUMULATOR PRESSURE SENSOR) Reconnect the brake booster pump connectors. Connect the Techstream to the DLC3. Turn the power switch on (IG). Select the Data List on the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-398097-S36405419582011051600000) . 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: 2.9 to 4.2 V When brake fluid is stored in the accumulator: Accumulator pressure changes in accordance with volume of fluid stored in the accumulator Wait for 30 seconds without depressing the brake pedal. Check that the accumulator pressure sensor output values change is within the specified range. OK Accumulator pressure sensor output values change is within 0.55 V. NG --> See step 4 OK --> See step 5
  4. PERFORM ACTIVE TEST USING TECHSTREAM (SOLENOID VALVE) Turn the power switch off. Connect the Techstream to the DLC3. Turn the power switch on (IG). Select the Active Test on the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-398097-S36405419582011051600000) . HINT: The Active Test can be performed when the following conditions are met. ABS main relay is on. Park (P) is selected. Parking brake is applied. Vehicle speed is 0 km/h (0 mph). ABS/VSC/TRAC Tester Display Test Part Control Range Diagnostic Note ECB* Solenoid (SMC/SRC/SCC) Switching solenoid valve (SMC/SRC/SCC) Solenoid ON/OFF Operation sound of solenoid (clicking sound) can be heard *: Electronically Controlled Brake System Perform the Active Test of the solenoid using the Techstream. Select the Data List on the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-398097-S36405419582011051600000) . ABS/VSC/TRAC Tester Display Measurement Item/Range Normal Condition Diagnostic Note Wheel Cylinder Pressure Sensor Wheel cylinder pressure sensor / Min.: 0 V, Max.: 5 V When brake pedal released: 0.1 to 0.9 V Reading increases when brake pedal is depressed Check that the output value of the wheel cylinder does not increase. OK The output value of the wheel cylinder does not increase. HINT: If any output value increases, there may be brake fluid leaks in the brake actuator. NG --> See step 7 OK --> See step 6
  5. CHECK FOR INTERMITTENT PROBLEMS. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398089-S18270818032011051600000)
  6. REPLACE BRAKE BOOSTER PUMP. Refer to «REMOVAL»(ref-398212-S10797813252011051600000)
  7. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  1. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER Replace the brake booster with master cylinder (skid control ECU). Refer to «REMOVAL»(ref-398212-S42415717782011051600000) . NEXT --> END
  1. CHECK HYBRID CONTROL SYSTEM Check if the hybrid control system DTC is output. Refer to «DTC CHECK / CLEAR»(ref-398094-S29961611252011051600000) . Result Result Proceed to DTC is not output A DTC is output B B --> See step 3 A --> See step 2
  2. REPLACE HYBRID VEHICLE CONTROL ECU. Refer to «REMOVAL»(ref-398232-S36824664312011051600000)
  3. INSPECT HYBRID CONTROL SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398094-S11405263312011051600000)
  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-398097-S11353765862011051600000) . HINT: When the stored zero point of the yaw rate and acceleration sensor is cleared, steering angle sensor zero point will also be cleared. 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 Turn the power switch off. Turn the power switch on (READY). Drive the vehicle straight ahead at 35 km/h (22 mph) or more for at least 5 seconds. Check that the steering wheel is centered correctly while driving straight ahead. HINT: If front wheel alignment and steering position are adjusted as a result of an off-center of the steering wheel, acquire yaw rate and acceleration sensor zero point again after the adjustments are completed. OK The steering wheel is centered correctly. NG --> See step 4 OK: Go to next step
  3. RECONFIRM DTC Turn the power switch off. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . 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 (22 mph) or more. Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTC (C1290/66) is not output A DTC (C1290/66) is output B B --> See step 5 A --> END
  4. ADJUST FRONT WHEEL ALIGNMENT OR STEERING POSITION. Refer to «ADJUSTMENT»(ref-398223-S24433688942011051600000)
  5. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  1. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER Replace the brake booster with master cylinder (skid control ECU). Refer to «REMOVAL»(ref-398212-S42415717782011051600000) . Perform initialization and calibration of the linear solenoid valve. Refer to «INITIALIZATION»(ref-398097-S34109725512011051600000) . Perform the zero point calibration of the yaw rate and acceleration sensor. Refer to «CALIBRATION»(ref-398097-S11353765862011051600000) . Perform the sensor check in the Test Mode procedure. Refer to «TEST MODE PROCEDURE»(ref-398097-S15603599552011051600000) . NEXT --> END
  1. CHECK DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Turn the power switch off. Turn the power switch on (IG). Check that the DTCs (electronically controlled brake system and hybrid control system) are recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) for electronically controlled brake system, or. Refer to «DTC CHECK / CLEAR»(ref-398094-S29961611252011051600000) for hybrid control system). Result Result Proceed to DTCs (except C1345/66, C1368/67 and hybrid control system DTC) are not output A Hybrid control system DTC is output B DTCs (except C1345/66 and/or C1368/67) are output C HINT: Before performing initialization and calibration of the linear solenoid valve, C1203/95 will be output. C --> See step 5 B --> See step 4 A: Go to next step
  2. PERFORM INITIALIZATION AND CALIBRATION OF LINEAR SOLENOID VALVE Turn the power switch off. Perform initialization and calibration of the linear solenoid valve. Refer to «INITIALIZATION»(ref-398097-S34109725512011051600000) . NEXT: Go to next step
  3. RECONFIRM DTC Turn the power switch off. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Turn the power switch on (IG). Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTCs (C1345/66 and C1368/67) are not output A DTCs (C1345/66 and/or C1368/67) are output B B --> See step 6 A --> END
  4. INSPECT HYBRID CONTROL SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398094-S11405263312011051600000)
  5. REPAIR CIRCUITS INDICATED BY OUTPUT DTCS. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398097-S01025085302011051600000)
  6. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  1. READ VALUE USING TECHSTREAM (ACCUMULATOR PRESSURE SENSOR) Connect the Techstream to the DLC3. Turn the power switch on (IG). Select the Data List on the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-398097-S36405419582011051600000) . 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: 2.9 to 4.2 V When brake fluid is stored in the accumulator: Accumulator pressure changes in accordance with volume of fluid stored in the accumulator Wait for 30 seconds without depressing the brake pedal. Check that the accumulator pressure sensor output values change is within the specified range. OK Accumulator pressure sensor output values change is within 0.55 V. NG --> See step 4 OK: Go to next step
  2. RECONFIRM DTC Turn the power switch off. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Perform a road test. Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTC (C1365/54) is not output A DTC (C1365/54) is output B B --> See step 4 A --> See step 3
  3. CHECK FOR INTERMITTENT PROBLEMS. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398089-S18270818032011051600000)
  4. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  1. CHECK FOR FLUID LEAK Check that there is no fluid leaks in the brake line between the brake actuator and the wheel cylinder which is indicated by DTCs. Check that the brake is not dragging. OK There is no fluid leaks or dragging. NG --> REPAIR OR REPLACE APPLICABLE PART OK: Go to next step
  2. RECONFIRM DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Turn the power switch on (READY). Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTC (C1391/69) is output A DTC (C1391/69) is not output B B --> See step 6 A: Go to next step
  3. PERFORM ACTIVE TEST USING TECHSTREAM (SOLENOID VALVE) Turn the power switch off. Connect the Techstream to the DLC3. Turn the power switch on (IG). Select the Active Test on the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-398097-S36405419582011051600000) . HINT: The Active Test can be performed when the following conditions are met. ABS main relay is on. Park (P) is selected. Parking brake is applied. Vehicle speed is 0 km/h (0 mph). ABS/VSC/TRAC Tester Display Test Part Control Range Diagnostic Note ECB* Solenoid (SMC/SRC/SCC) Switching solenoid valve (SMC/SRC/SCC) Solenoid ON/OFF Operation sound of solenoid (clicking sound) can be heard *: Electronically Controlled Brake System Perform the Active Test of the solenoid using the Techstream. Select the Data List on the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-398097-S36405419582011051600000) . ABS/VSC/TRAC Tester Display Measurement Item/Range Normal Condition Diagnostic Note Wheel Cylinder Pressure Sensor Wheel cylinder pressure sensor / Min.: 0 V, Max.: 5 V When brake pedal released: 0.1 to 0.9 V Reading increases when brake pedal is depressed Check that the output value of the wheel cylinder does not increase. OK The output value of the wheel cylinder does not increase. HINT: If any output value increases, there may be brake fluid leaks in the brake actuator. Result Result Proceed to The output value of the wheel cylinder increases A The output values of the wheel cylinders do not increase B B --> See step 5 A: Go to next step
  4. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER Replace the brake booster with master cylinder (brake actuator). Refer to «REMOVAL»(ref-398212-S42415717782011051600000) . NEXT --> See step 5
  5. REPLACE BRAKE BOOSTER PUMP. Refer to «REMOVAL»(ref-398212-S10797813252011051600000)
  6. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  1. CHECK DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . 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-398235-S15853483682011051600000) . 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, yaw rate and acceleration sensor and steering angle sensor DTCs are output. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTCs (C1439/66 and/or C1445/66) are output A CAN communication system DTC is output B Speed sensor, yaw rate and acceleration sensor and/or steering angle sensor DTC is output C DTCs (C1439/66 and C1445/66) are not output D HINT: When DTCs indicating CAN communication system malfunctions are output, repair the CAN communication system before repairing each corresponding sensor. 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 calibration, such as when the power source voltage drops. D --> See step 6 C --> See step 5 B --> See step 4 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 steering wheel is centered correctly 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 steering wheel is centered correctly. NG --> See step 7 OK: Go to next step
  3. RECONFIRM DTC Turn the power switch off. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . 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-398097-S18517405762011051600000) . Result Result Proceed to DTCs (C1439/66 and C1445/66) are not output A Yaw rate and acceleration sensor and/or steering angle sensor DTC is 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 calibration, such as when the power source voltage drops. B --> See step 5 A --> END
  4. INSPECT CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398235-S17886579092011051600000)
  5. REPAIR CIRCUITS INDICATED BY OUTPUT DTCS. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398097-S01025085302011051600000)
  6. CHECK FOR INTERMITTENT PROBLEMS. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398089-S18270818032011051600000)
  7. ADJUST FRONT WHEEL ALIGNMENT OR STEERING POSITION. Refer to «ADJUSTMENT»(ref-398223-S24433688942011051600000)
  1. CHECK DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Perform a road test. Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTC (C1440/98) is output A DTC (C1440/98) is not output B Yaw rate and acceleration sensor DTC is output C C --> See step 3 B --> END A: Go to next step
  2. CLEAR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . HINT: If the skid control ECU determines that the vehicle is being driven at a steep bank angle, the skid control ECU stores DTC C1440/98 while VSC operation is temporarily disabled. It is not a malfunction if the system and sensor circuits are normal and if the normal VSC operation resumes. NEXT --> END
  3. REPAIR CIRCUITS INDICATED BY OUTPUT DTCS. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398097-S01025085302011051600000)
  1. CHECK DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . 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-398283-S41088538692011051600000)
  3. CHECK FOR INTERMITTENT PROBLEMS. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398089-S18270818032011051600000)
  1. CHECK BRAKE FLUID LEVEL Check that the brake fluid level is sufficient. OK Brake fluid level is sufficient. HINT: If the fluid level drops, check for fluid leaks, and repair as necessary. If no fluid leaks exist, add and adjust fluid. Refer to «ON-VEHICLE INSPECTION»(ref-398212-S30140755622011051600000) . NG --> CHECK AND REPAIR BRAKE FLUID LEAKS OR ADD FLUID OK: Go to next step
  2. PERFORM AIR BLEEDING Bleed the air from the brake systems. Refer to «BLEEDING»(ref-398212-S16440749292011051600000) . HINT: If air bleeding has been performed, this DTC will be cleared. NEXT: Go to next step
  3. RECONFIRM DTC Check if the same DTC is recorded. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTC (C1451/72) is output A DTC (C1451/728) is not output B B --> END A: Go to next step
  4. CLEAR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . NEXT --> END
  1. CHECK HARNESS AND CONNECTOR (MOMENTARY INTERRUPTION) Using the Techstream, check for any momentary interruptions in the wire harness and connector corresponding to a DTC. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-398097-S38565635072011051600000) . ABS/VSC/TRAC Tester Display Measurement Item/Range Normal Condition Yaw Rate Open Yaw rate sensor open detection / Error or Normal Error: Momentary interruption Normal: Normal Steering Open Steering angle sensor open detection / Error or Normal Error: Momentary interruption Normal: Normal HV Communication Open Hybrid vehicle communication open detection / Error or Normal Error: Momentary interruption Normal: Normal Result Result Proceed to There is a constant open circuit A There are no momentary interruptions B There are momentary interruptions C HINT: Perform the above inspection before removing any sensor or connector. C --> See step 4 B --> See step 3 A: Go to next step
  2. CHECK IF EACH SENSOR AND ECU CONNECTOR ARE SECURELY CONNECTED Turn the power switch off. Check if each sensor and ECU connector are securely connected. OK Each sensor and ECU connector are securely connected. NG --> CONNECT CONNECTOR TO EACH SENSOR OR ECU CORRECTLY OK: Go to next step
  3. RECONFIRM DTC Turn the power switch off. Record the output DTCs (for ABS, VSC, electronically controlled brake system, and/or CAN communication system). Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) for ABS, VSC and/or electronically controlled brake system, or. Refer to «DIAGNOSIS SYSTEM»(ref-398235-S15853483682011051600000) for CAN communication system). HINT: If the CAN communication system DTC and the relevant sensor DTCs are output simultaneously, troubleshoot the relevant sensor DTCs (for ABS, VSC and/or electronically controlled brake system) after the CAN communication system returns to normal. Result Result Proceed to DTC is not output A DTC (ABS, VSC and/or electronically controlled brake system DTC) is output B DTC (CAN communication system DTC) is output C C --> See step 8 B --> See step 7 A --> See step 6
  4. REPAIR OR REPLACE HARNESS OR CONNECTOR Turn the power switch off. Repair or replace the harness or connector. Check for any momentary interruption between the skid control ECU and each sensor or ECU. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-398097-S38565635072011051600000) . Check that there are no momentary interruptions. NEXT: Go to next step
  5. RECONFIRM DTC Turn the power switch off. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Turn the power switch on (READY). Drive the vehicle and turn the steering wheel to the right and left at a speed of 15 km/h (9 mph) or more. Check that no CAN communication system DTC is output. Refer to «DIAGNOSIS SYSTEM»(ref-398235-S15853483682011051600000) . If ABS, VSC and/or electronically controlled brake system DTCs are output, record them. Refer to «DTC CHECK / CLEAR»(ref-398097-S18517405762011051600000) . Result Result Proceed to DTC is not output A DTC (ABS, VSC and/or electronically controlled brake system DTC) is output B DTC (CAN communication system DTC) is output C HINT: The CAN communication system must be normal when repairing each sensor DTC (for ABS, VSC and/or electronically controlled brake system). C --> See step 8 B --> See step 7 A --> END
  6. CHECK FOR INTERMITTENT PROBLEMS. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398089-S18270818032011051600000)
  7. REPAIR CIRCUITS INDICATED BY OUTPUT DTCS. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398097-S01025085302011051600000)
  8. INSPECT CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398235-S17886579092011051600000)
  1. CHECK CAN COMMUNICATION SYSTEM Check if a CAN communication system DTC is output. Refer to «DIAGNOSIS SYSTEM»(ref-398235-S15853483682011051600000) . Result Result Proceed to DTC is not output A DTC is output B B --> See step 4 A: Go to next step
  2. CHECK ABS WARNING LIGHT Disconnect the skid control ECU connector. Turn the power switch on (IG). Check that the ABS warning light comes on. OK The ABS warning light comes on. 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-398097-S13184429062011051600000) . NG --> See step 3 OK --> See step 5
  3. INSPECT COMBINATION METER Turn the power switch off. Reconnect the skid control ECU connector. Perform the Active Test of the combination meter (meter CPU) using the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-398239-S02790031422011051600000) . Check the combination meter. OK The ABS warning 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-398097-S13184429062011051600000) . NG --> See step 6 OK --> See step 5
  4. INSPECT CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398235-S17886579092011051600000)
  5. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  6. REPLACE COMBINATION METER. Refer to «REMOVAL»(ref-398236-S19518532552011051600000)
  1. CHECK CAN COMMUNICATION SYSTEM Check if a CAN communication system DTC is output. Refer to «DIAGNOSIS SYSTEM»(ref-398235-S15853483682011051600000) . Result Result Proceed to DTC is not output A DTC is output B B --> See step 4 A: Go to next step
  2. CHECK BRAKE WARNING LIGHT / RED (MALFUNCTION) Disconnect the skid control ECU connector. Turn the power switch on (IG). Check that the brake warning light / red (malfunction) comes on. OK The brake warning light / red (malfunction) comes on. 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-398097-S13184429062011051600000) . NG --> See step 3 OK --> See step 5
  3. INSPECT COMBINATION METER Turn the power switch off. Reconnect the skid control ECU connector. Perform the Active Test of the combination meter (meter CPU) using the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-398239-S02790031422011051600000) . Check the combination meter. OK The brake warning light / red (malfunction) 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-398097-S13184429062011051600000) . NG --> See step 6 OK --> See step 5
  4. INSPECT CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398235-S17886579092011051600000)
  5. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  6. REPLACE COMBINATION METER. Refer to «REMOVAL»(ref-398236-S19518532552011051600000)
  1. CHECK CAN COMMUNICATION SYSTEM Check if a CAN communication system DTC is output. Refer to «DIAGNOSIS SYSTEM»(ref-398235-S15853483682011051600000) . Result Result Proceed to DTC is not output A DTC is output B B --> See step 5 A: Go to next step
  2. PERFORM ACTIVE TEST USING TECHSTREAM (MULTI-INFORMATION DISPLAY) Connect the Techstream to the DLC3. Turn the power switch on (IG). Select the Active Test on the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-398097-S36405419582011051600000) . ABS/VSC/TRAC Tester Display Test Part Control Range Diagnostic Note TRAC OFF Indicator Light Multi-information display Display ON/OFF Observe combination meter Check that the multi-information display on the combination meter turns on or off in accordance with the Techstream operation. OK The multi-information display 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-398097-S13184429062011051600000) . NG --> See step 3 OK --> See step 4
  3. INSPECT COMBINATION METER 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-398239-S02790031422011051600000) . Check the combination meter. OK The multi-information display 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-398097-S13184429062011051600000) . NG --> See step 6 OK --> See step 4
  4. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  5. INSPECT CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398235-S17886579092011051600000)
  6. REPLACE COMBINATION METER. Refer to «REMOVAL»(ref-398236-S19518532552011051600000)
  1. CHECK CAN COMMUNICATION SYSTEM Check if a CAN communication system DTC is output. Refer to «DIAGNOSIS SYSTEM»(ref-398235-S15853483682011051600000) . Result Result Proceed to DTC is not output A DTC is output B B --> See step 6 A: Go to next step
  2. 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 --> CONNECT CONNECTOR TO ECU CORRECTLY OK: Go to next step
  3. CHECK AUXILIARY BATTERY Check the auxiliary battery voltage. Standard Voltage 11 to 14 V NG --> CHARGE OR REPLACE AUXILIARY BATTERY OK: Go to next step
  4. INSPECT COMBINATION METER Perform the Active Test of the combination meter (meter CPU) using the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-398239-S02790031422011051600000) . Check the combination meter. OK The brake warning light / yellow (minor malfunction) 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-398097-S13184429062011051600000) . NG --> See step 7 OK --> See step 5
  5. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  6. INSPECT CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398235-S17886579092011051600000)
  7. REPLACE COMBINATION METER. Refer to «REMOVAL»(ref-398236-S19518532552011051600000)
  1. CHECK CAN COMMUNICATION SYSTEM Check if a CAN communication system DTC is output. Refer to «DIAGNOSIS SYSTEM»(ref-398235-S15853483682011051600000) . Result Result Proceed to DTC is not output A DTC is output B B --> See step 5 A: Go to next step
  2. PERFORM ACTIVE TEST USING TECHSTREAM (BRAKE WARNING LIGHT / YELLOW (MINOR MALFUNCTION)) Connect the Techstream to the DLC3. Turn the power switch on (IG). Select the Active Test on the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-398097-S36405419582011051600000) . ABS/VSC/TRAC Tester Display Test Part Control Range Diagnostic Note ECB* Warning Light Brake warning light / yellow (minor malfunction) Warning light ON/OFF Observe combination meter *: Electronically Controlled Brake System Check that the brake warning light / yellow (minor malfunction) on the combination meter turns on or off in accordance with the Techstream operation. OK The brake warning light / yellow (minor malfunction) 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-398097-S13184429062011051600000) . NG --> See step 3 OK --> See step 4
  3. INSPECT COMBINATION METER 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-398239-S02790031422011051600000) . Check the combination meter. OK The brake warning light / yellow (minor malfunction) 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-398097-S13184429062011051600000) . NG --> See step 6 OK --> See step 4
  4. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  5. INSPECT CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398235-S17886579092011051600000)
  6. REPLACE COMBINATION METER. Refer to «REMOVAL»(ref-398236-S19518532552011051600000)
  1. CHECK CAN COMMUNICATION SYSTEM Check if a CAN communication system DTC is output. Refer to «DIAGNOSIS SYSTEM»(ref-398235-S15853483682011051600000) . Result Result Proceed to DTC is not output A DTC is output B B --> See step 10 A: Go to next step
  2. 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 --> CONNECT CONNECTOR TO ECU CORRECTLY OK: Go to next step
  3. CHECK AUXILIARY BATTERY Check the auxiliary battery voltage. Standard Voltage 11 to 14 V NG --> CHARGE OR REPLACE AUXILIARY BATTERY OK: Go to next step
  4. READ VALUE USING TECHSTREAM (VSC OFF SWITCH) Connect the Techstream to the DLC3. Turn the power switch on (IG). Select the Data List on the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-398097-S36405419582011051600000) . ABS/VSC/TRAC Tester Display Measurement Item/Range Normal Condition TRC(TRAC)/VSC OFF SW VSC OFF switch / ON or OFF ON: Switch on OFF: Switch off TRAC/VSC Off Mode VSC OFF switch / Normal, TRC OFF, Unknown or VSC OFF Normal: Normal mode TRC OFF: TRAC off mode Unknown: Unspecified VSC OFF: VSC off mode Using the Techstream, check the switch input and mode condition on the Techstream changes according to VSC OFF switch operation. Result Result Proceed to OK A NG (Switch input and mode condition display do not change.) B NG (Switch input is normal, but mode condition display does not change.) C C --> See step 8 B --> See step 6 A: Go to next step
  5. INSPECT COMBINATION METER 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-398239-S02790031422011051600000) . 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 before replacing the part. Refer to «PROBLEM SYMPTOMS TABLE»(ref-398097-S13184429062011051600000) . NG --> See step 11 OK --> See step 9
  6. INSPECT VSC OFF SWITCH Turn the power switch off. Disconnect the VSC OFF switch connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition 6 (+) - 7 (E) Switch is pushed in Below 1 ohms 6 (+) - 7 (E) Switch is not pushed in 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (VSC OFF Switch) NG --> See step 12 OK: Go to next step
  7. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - VSC OFF SWITCH) Disconnect the skid control ECU connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A60-8 (CSW) - F10-6 (+) Always Below 1 ohms A60-8 (CSW) - Body ground Always 10 kohms or higher F10-7 (E) - Body ground Always Below 1 ohms 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-398097-S13184429062011051600000) . NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 9
  8. CHECK SLIP INDICATOR LIGHT (INITIAL CHECK) Turn the power switch off. Turn the power switch on (IG) and check the slip indicator light comes on (initial check). OK The slip indicator light comes on. 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-398097-S13184429062011051600000) . NG --> See step 11 OK --> See step 9
  9. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  10. INSPECT CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398235-S17886579092011051600000)
  11. REPLACE COMBINATION METER. Refer to «REMOVAL»(ref-398236-S19518532552011051600000)
  12. REPLACE VSC OFF SWITCH. Refer to «REMOVAL»(ref-398283-S34720537422011051600000)
  1. CHECK CAN COMMUNICATION SYSTEM Check if a CAN communication system DTC is output. Refer to «DIAGNOSIS SYSTEM»(ref-398235-S15853483682011051600000) . Result Result Proceed to DTC is not output A DTC is output B B --> See step 5 A: Go to next step
  2. PERFORM ACTIVE TEST USING TECHSTREAM (VSC OFF INDICATOR LIGHT) Connect the Techstream to the DLC3. Turn the power switch on (IG). Select the Active Test on the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-398097-S36405419582011051600000) . 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-398097-S13184429062011051600000) . NG --> See step 3 OK --> See step 4
  3. INSPECT COMBINATION METER 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-398239-S02790031422011051600000) . 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-398097-S13184429062011051600000) . NG --> See step 6 OK --> See step 4
  4. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  5. INSPECT CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398235-S17886579092011051600000)
  6. REPLACE COMBINATION METER. Refer to «REMOVAL»(ref-398236-S19518532552011051600000)
  1. CHECK CAN COMMUNICATION SYSTEM Check if a CAN communication system DTC is output. Refer to «DIAGNOSIS SYSTEM»(ref-398235-S15853483682011051600000) . Result Result Proceed to DTC is not output A DTC is output B B --> See step 6 A: Go to next step
  2. 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 --> CONNECT CONNECTOR TO ECU CORRECTLY OK: Go to next step
  3. CHECK AUXILIARY BATTERY Check the auxiliary battery voltage. Standard Voltage 11 to 14 V NG --> CHARGE OR REPLACE AUXILIARY BATTERY OK: Go to next step
  4. INSPECT COMBINATION METER Perform the Active Test of the combination meter (meter CPU) using the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-398239-S02790031422011051600000) . Check the combination meter. OK The slip 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-398097-S13184429062011051600000) . NG --> See step 7 OK --> See step 5
  5. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  6. INSPECT CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398235-S17886579092011051600000)
  7. REPLACE COMBINATION METER. Refer to «REMOVAL»(ref-398236-S19518532552011051600000)
  1. CHECK CAN COMMUNICATION SYSTEM Check if a CAN communication system DTC is output. Refer to «DIAGNOSIS SYSTEM»(ref-398235-S15853483682011051600000) . Result Result Proceed to DTC is not output A DTC is output B B --> See step 5 A: Go to next step
  2. PERFORM ACTIVE TEST USING TECHSTREAM (SLIP INDICATOR LIGHT) Connect the Techstream to the DLC3. Turn the power switch on (IG). Select the Active Test on the Techstream. Refer to «DATA LIST / ACTIVE TEST»(ref-398097-S36405419582011051600000) . 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 the Techstream operation. OK The slip 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-398097-S13184429062011051600000) . NG --> See step 3 OK --> See step 4
  3. INSPECT COMBINATION METER 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-398239-S02790031422011051600000) . Check the combination meter. OK The slip 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-398097-S13184429062011051600000) . NG --> See step 6 OK --> See step 4
  4. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)
  5. INSPECT CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398235-S17886579092011051600000)
  6. REPLACE COMBINATION METER. Refer to «REMOVAL»(ref-398236-S19518532552011051600000)
  1. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - TS of DLC3) Disconnect the skid control ECU connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A60-4 (TS) - F11-12 (TS) Always Below 1 ohms A60-4 (TS) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  2. CHECK HARNESS AND CONNECTOR (CG of DLC3 - BODY GROUND) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition F11-4 (CG) - Body ground Always Below 1 ohms TEXT IN ILLUSTRATION *1 Front view of DLC3 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-398097-S13184429062011051600000) . NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 3
  3. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER. Refer to «REMOVAL»(ref-398212-S42415717782011051600000)

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