RX330_ABS phanh ABS toyota thông số kỹ thuật lắp đặt bảo trì

05−519 DIAGNOSTICS ABS Warning Light BRAKE Warning Light USA: USA: Canada: Canada: − ABS WITH EBD & BA & TRAC & VSC SYSTEM PRE−CHECK (a) 05CCY−02 DIAGNOSIS SYSTEM Check the warning lights (1) Release parking brake pedal (2) When the ignition switch is turned to the ON position, check that the ABS warning light, BRAKE warning light, VSC warning light, TRAC OFF indicator light (2WD) and SLIP indicator light stay on for approx seconds HINT: VSC Warning Light SLIP Indicator Light S S TRAC OFF Indicator Light (2WD) F45096 S S When the parking brake is applied or the level of brake fluid is low, the BRAKE warning light comes on If the ECU has any stored DTCs, the ABS warning light, VSC warning light and TRAC OFF indicator light (2WD) come on If the indicator does not come on, inspect it the bulb is blown out, and also the wire harness between the skid control ECU and the combination meter If the indicator remains on, proceed to troubleshooting for the light circuit below Trouble Area DLC3 05−594 VSC warning light circuit 05−597 BRAKE warning light circuit 05−600 TRAC OFF indicator light circuit (2WD) 05−605 SLIP indicator light circuit 05−610 (a) Tc CG C52361 DTC CHECK (USING SST CHECK WIRE) Checking DTCs (1) Using SST(s), connect terminals Tc and CG of the DLC3 SST 09843−18040 (2) Turn the ignition switch to the ON position (3) Read the DTC from the ABS warning light or VSC warning light on the combination meter HINT: S S If more than malfunction is detected at the same time, the lowest numbered code will be displayed first If no code appears, inspect the diagnostic circuit, ABS warning light circuit or VSC warning light circuit Trouble Area 2005 LEXUS RX330 REPAIR MANUAL (RM1136U) See page ABS warning light circuit See page Tc and CG terminal circuit 05−616 ABS warning light circuit 05−594 VSC warning light circuit 05−597 05−520 DIAGNOSTICS sec Normal Blinking − ABS WITH EBD & BA & TRAC & VSC SYSTEM S As an example, the blinking patterns for the normal system code and codes 11 and 21 are shown on the left (4) Codes are explained in the code table on page 05−532 (5) After completing the check, disconnect terminal Tc and CG of the DLC3, and turn off the display (b) Clearing DTCs (1) Using SST(s), connect the terminals Tc and CG of the DLC3 SST 09843−18040 (2) Turn the ignition switch ON (3) Clear DTCs stored in ECU by depressing the brake pedal or more times within sec (4) Check that the ABS warning light and VSC warning light shows normal blinking patterns (5) Remove the SST(s) from the DLC3 SST 09843−18040 0.25 sec 0.25 sec ON OFF Code 11 and 21 0.5 sec 0.5 sec 1.5 sec sec 2.5 sec ON OFF Code 11 Code 21 R01346 BR3890 HINT: Cancellation cannot be preformed by removing the battery cable or the ECU−IG2 fuse DTC CHECK (USING HAND−HELD TESTER) (a) Checking DTCs (1) Connect the hand−held tester to the DLC3 (2) Turn the ignition switch to the ON position (3) Read the DTCs by following the prompts on the tester screen HINT: Refer to the hand−held tester operator ’s manual for further details (b) Clearing the DTCs (1) Connect the hand−held tester to the DLC3 (2) Turn the ignition switch to the ON position (3) Operate the hand−held tester to erase the codes HINT: Refer to the hand−held tester operator ’s manual for further details 2005 LEXUS RX330 REPAIR MANUAL (RM1136U) 05−521 DIAGNOSTICS − ABS WITH EBD & BA & TRAC & VSC SYSTEM DATA LIST HINT: With the hand−held tester connected to the DLC3 and the ignition switch on, the ABS, TRAC and VSC data list can be displayed Follow the prompts on the tester screen to access the Data List Item ABS MOT RELAY SOL RELAY VSC / TRC OFF SW* Measurement Item / Range (Display) ABS motor relay / ON or OFF Solenoid relay / ON or OFF TRAC control switch / ON or OFF IDLE SW Main idle switch / ON or OFF STOP LIGHT SW Stop lamp switch / ON or OFF PKB SW Parking brake switch / ON or OFF STEP FORCE SW Brake load sensing switch / ON or OFF ABS OPERT FR ABS operation (FR) / BEFORE or OPERATE ABS OPERT FL ABS operation (FL) / BEFORE or OPERATE ABS OPERT RR ABS operation (RR) / BEFORE or OPERATE ABS OPERT RL ABS operation (RL) / BEFORE or OPERATE WHEEL SPD FR WHEEL SPD FL WHEEL SPD RR Wheel speed sensor (FR) reading / min.: km/h (0 MPH, max.: 326 km/h (202 MPH) Wheel speed sensor (FL) reading / min.: km/h (0 MPH, max.: 326 km/h (202 MPH) Wheel speed sensor (RR) reading / min.: km/h (0 MPH, max.: 326 km/h (202 MPH) *: 2WD 2005 LEXUS RX330 REPAIR MANUAL (RM1136U) Normal Condition Diagnostic Note ON : Motor relay ON − ON : Solenoid relay ON − ON : TRAC control switch ON − ON : Accelerator pedal released OFF : Accelerator pedal depressed ON : Brake pedal depressed OFF : Brake pedal released ON : Parking brake applied OFF : Parking brake released ON : Depressed brake pedal OFF : Released brake pedal BEFORE : No ABS operation (FR) OPERATE : During ABS operation (FR) BEFORE : No ABS operation (FL) OPERATE : During ABS operation (FL) BEFORE : No ABS operation (RR) OPERATE : During ABS operation (RR) BEFORE : No ABS operation (RL) OPERATE : During ABS operation (RL) − − − − − − − − Actual wheel speed Speed indicated on speedometer Actual wheel speed Speed indicated on speedometer Actual wheel speed Speed indicated on speedometer 05−522 DIAGNOSTICS Item WHEEL SPD RL DECELERAT SENS DECELERAT SENS2 IG VOLTAGE SFRR SFRH SFLR SFLH SRRR (SRR) SRRH (SRH) SRLR SRLH SMF (BA−SOL) SMR THROTTLE ENGINE SPD VEHICLE SPD YAW RATE YAW ZERO VALUE STEERING ANG MAS CYL PRS Measurement Item / Range (Display) Wheel speed sensor (RL) reading / min.: km/h (0 MPH, max.: 326 km/h (202 MPH) Deceleration sensor reading / min.: −1.869 G, max.: 1.869 G Deceleration sensor reading / min.: −1.869 G, max.: 1.869 G ECU power supply voltage / UNDER / NORMAL / OVER ABS solenoid (SFRR) / ON or OFF ABS solenoid (SFRH) / ON or OFF ABS solenoid (SFLR) / ON or OFF ABS solenoid (SFLH) / ON or OFF ABS solenoid (SRRR (SRR)) / ON or OFF ABS solenoid (SRRH (SRH)) / ON or OFF ABS solenoid (SRLR) / ON or OFF ABS solenoid (SRLH) / ON or OFF TRAC solenoid (SMF) / ON or OFF TRAC solenoid (SMR) / ON or OFF Throttle position sensor/ Min.: deg, Max.: 125 deg Engine Speed/ Min.: rpm, Max.: 6000 rpm Maximum wheel speed sensor reading / min.: km/h (0 MPH), max.: 326 km/h (202 MPH) Yaw rate sensor/ Min.: −128 deg/s, Max.: 128 deg/s Memorized zero value/ Min.: −128 deg/s, Max.: 128 deg/s Steering sensor/ Min.: −1152 deg, Max.: 1150.875 deg Master cylinder pressure sensor reading / min.: V, max.: V 2005 LEXUS RX330 REPAIR MANUAL (RM1136U) − ABS WITH EBD & BA & TRAC & VSC SYSTEM Normal Condition Diagnostic Note Actual wheel speed Speed indicated on speedometer Approximately ± 0.13G at still condition Reading changes when vehicle is bounced Approximately ± 0.13G at still condition Reading changes when vehicle is bounced OVER: NORMAL: 9.5 V or over UNDER: Below 9.5 V − ON : Operate − ON : Operate − ON : Operate − ON : Operate − ON : Operate − ON : Operate − ON : Operate − ON : Operate − ON : Operate − ON : Operate − Release accelerator pedal: Approx deg Depress accelerator pedal: Approx 90 deg − Actual engine speed − Actual vehicle speed Speed indicated on speedometer Min.: −128 deg/s Max.: 128 deg/s − Min.: −128 deg/s Max.: 128 deg/s − Left turn: Increase Right turn: Decrease − When brake pedal is released : 0.3 to 0.9 V Reading increases when brake pedal is depressed 05−523 DIAGNOSTICS Item TEST MODE #CODES Measurement Item / Range (Display) Test mode / NORMAL or TEST Number of DTC recorded / min.: 0, max.: 255 − ABS WITH EBD & BA & TRAC & VSC SYSTEM Normal Condition Diagnostic Note NORMAL : Normal mode TEST : During test mode − Min.: 0, max.: 39 − ACTIVE TEST HINT: Performing the ACTIVE TEST using the hand−held tester allows the relay and actuator, etc to operate without removing any parts Performing the ACTIVE TEST as the first step of troubleshooting is one of the methods to shorten labor time It is possible to display the DATA LIST during the ACTIVE TEST (a) Connect the hand−held tester to the DLC3 (b) Turn the ignition switch to the ON position (c) According to the display on the tester, perform the ”ACTIVE TEST” HINT: Ignition switch must be turned to the ON position to proceed to the Active Test using the hand−held tester Item Vehicle Condition / Test Details SFRR Turns ABS solenoid (SFRR) ON / OFF SFRH Turns ABS solenoid (SFRH) ON / OFF SFLR Turns ABS solenoid (SFLR) ON / OFF SFLH Turns ABS solenoid (SFLH) ON / OFF SRRR Turns ABS solenoid (SRRR) ON / OFF SRRH Turns ABS solenoid (SRRH) ON / OFF SRLR Turns ABS solenoid (SRLR) ON / OFF SRLH Turns ABS solenoid (SRLH) ON / OFF SMF (BA−SOL) Turns TRAC solenoid SMF (BA−SOL) ON / OFF SMR Turns TRAC solenoid SMR ON / OFF SOL RELAY Turns ABS solenoid relay ON / OFF ABS MOT RELAY Turns ABS motor relay ON / OFF ABS WARN LIGHT Turns ABS warning light ON / OFF 2005 LEXUS RX330 REPAIR MANUAL (RM1136U) Diagnostic Note Operation of solenoid (clicking sound) can be heard Operation of solenoid (clicking sound) can be heard Operation of solenoid (clicking sound) can be heard Operation of solenoid (clicking sound) can be heard Operation of solenoid (clicking sound) can be heard Operation of solenoid (clicking sound) can be heard Operation of solenoid (clicking sound) can be heard Operation of solenoid (clicking sound) can be heard Operation of solenoid (clicking sound) can be heard Operation of solenoid (clicking sound) can be heard Operation of solenoid (clicking sound) can be heard Operation of motor can be heard Observe combination meter 05−524 DIAGNOSTICS Item − ABS WITH EBD & BA & TRAC & VSC SYSTEM Vehicle Condition / Test Details VSC WARN LIGHT Turns VSC warning light ON / OFF VSC / TRAC OFF IND* Turns VSC / TRAC OFF indicator ON / OFF SLIP INDI LIGHT Turns SLIP indicator light ON / OFF BRAKE WRN LIGHT Turns BRAKE warning light ON / OFF VSC / BR WARN BUZ Turns VSC / BRAKE warning buzzer ON / OFF Diagnostic Note Observe combination meter Observe combination meter Observe combination meter Observe combination meter Buzzer can be heard *: 2WD FREEZE FRAME DATA (a) The vehicle (sensor) status, stored during ABS and/or VSC operation or at the time of an error code detection, can be displayed by the hand−held tester (b) Only one record of freeze frame data is stored and the freeze frame data generated during ABS and/or VSC operation are updated whenever the vehicle status is changed Also, the number of the ignition switch is ON after the freeze frame data is stored can be stored up to 31 and it can be displayed After storing the DTC, the freeze frame data is not up−dated HINT: If the ignition switch ”ON” operation exceeds 31 times, ”31” appears on the display (c) If a malfunction occurs, the freeze frame data is stored but the ABS actuation data is deleted Hand−held tester display VEHICLE SPD Reference Value*1 Measurement Item Wheel speed sensor reading Speed indicated on speedometer Stop lamp switch signal Stop lamp switch ON: ON, OFF: OFF Number of operations of ignition switch ON after memorizing freeze frame data to 31 MAS CYL PRESS Master cylinder pressure sensor reading Brake pedal release : 0.3 to 0.9 V Brake pedal depress: 0.8 to 4.5 V MASS PRESS GRADE Master cylinder pressure sensor change −30 to 200 MPa/s System status ABS activated: ABS VSC/TRC activated: VSC/TRC BA activated: BA Fail safe mode activated: FAIL SF No system activated: NO SYS Yaw rate angle sensor reading −100 to 100 Steering sensor reading Left turn: Increase Right turn: Decrease G (RIGHT & LEFT) Right and left G −1.869 to 1.869 G (BACK & FORTH) Back and forth G −1.869 to 1.869 TRAC control switch signal TRC control switch ON: ON OFF: OFF Shift lever position FAIL P,N R D L Throttle sensor reading to 125 deg STOP LIGHT SW # IG ON SYSTEM YAW RATE STEERING ANG VSC (TRC) OFF SW*2 SHIFT POSITION THROTTLE *1: If no conditions are specifically stated for ”Idling”, it means the shift lever is in N or P position, the A/C switch is OFF and all accessory switches are OFF *2: 2WD 2005 LEXUS RX330 REPAIR MANUAL (RM1136U) 05−525 DIAGNOSTICS − ABS WITH EBD & BA & TRAC & VSC SYSTEM DLC3 Ts CG C52361 SENSOR SIGNAL CHECK (TEST MODE) (USING SST CHECK WIRE) NOTICE: When having replaced the yaw rate sensor (deceleration sensor) and/or ABS & TRAC actuator assembly (skid control ECU), perform zero point calibration of the yaw rate sensor and deceleration sensor (See step 9.) HINT: S If the ignition switch is turned from ON to the ACC or LOCK position during test mode, DTC of sensor check function will be erased S During test mode, ECU records all DTC of sensor check functions By preforming sensor signal check, the codes are erased if normality is confirmed The codes left over are the codes where an abnormality was found (a) Procedures for test mode: (1) Turn the ignition switch off (2) Check that the steering wheel is in the straight− ahead position and shift the shift lever is in the P position (3) Using SST(s), connect terminals Ts and CG of the DLC3 SST 09843−18040 (4) Turn the ignition switch to the ON position (5) 0.13 sec 0.13 sec Check that the ABS warning light and VSC warning light blink HINT: If the ABS warning light and VSC warning light not blink, inspect the ABS warning light circuit, VSC warning light and Ts terminal circuit ON Trouble area OFF BR3904 2005 LEXUS RX330 REPAIR MANUAL (RM1136U) See Page Ts and CG terminal circuit 05−618 ABS warning light circuit 05−594 VSC warning light circuit 05−597 05−526 DIAGNOSTICS (b) − ABS WITH EBD & BA & TRAC & VSC SYSTEM Check the master cylinder pressure sensor: (1) Leaving the vehicle in a stationary condition and the brake pedal in a free condition for second or more, continue to quickly depress the brake pedal with a force of 98 N (10 kgf, 22 lbf) or more for second or more HINT: S S S S S S (c) Start Position Within ± 5˚ End Position F02135 2005 LEXUS RX330 REPAIR MANUAL (RM1136U) At this time, the ABS warning light stays on for seconds While the ABS warning light stays on, continue to depress the brake pedal with a force of 98N (10 kgf) or more The ABS warning light comes on for seconds every time the brake pedal operation above is performed If master cylinder pressure sensor check can not be completed, not depress the brake pedal frequently It may further reduce negative pressure and make the sensor check difficult to complete If the negative pressure is insufficient, master cylinder pressure sensor check may not be completed In this case, idle the engine to get enough negative pressure If the brake pedal is depressed during engine stop, negative pressure may become insufficient and the BRL may come on (It runs the motor and performs incorrect control.) Check the yaw rate sensor: (1) Shift the shift lever to the D position and drive the vehicle at a speed of approx km/h (3 mph), turn the steering wheel either to the left or right 90˚ or more, and maintain a 180˚ circular drive for the vehicle (2) Stop the vehicle and shift the shift lever to the P position, check that the skid control buzzer sounds for sec NOTICE: Deceleration sensor check should be completed before performing speed sensor check HINT: S If the skid control buzzer sounds, the sensor check is completed normally S If the skid control buzzer does not sound, check the skid control buzzer circuit (See page 05−613), then perform the sensor check again If the skid control buzzer still does not sound, there is a malfunction in the VSC sensor, so check the DTC S Drive the vehicle in a 180˚ circle At the end of the turn, ensure that the vehicle is within ± 5˚ exactly 180˚, and facing the other direction from its original start position S Do not spin the wheels 05−527 DIAGNOSTICS (d) − ABS WITH EBD & BA & TRAC & VSC SYSTEM Check the speed sensor signal: (1) Drive the vehicle straight forward at the speed of 45 km/h (28 mph) or higher for several seconds and check that the ABS warning light goes off HINT: The sensor check may not be completed if the vehicle has its wheels spun or the steering wheel is turned during this check (2) Stop the vehicle NOTICE: S Before performing speed sensor check, complete master cylinder pressure sensor and deceleration sensor checks S Speed sensor check may not be completed if speed sensor check is started while turning the steering wheel or spinning the wheels S After the ABS warning light goes off, if the vehicle speed exceeds 80 km/h, sensor check code is stored again Decelerate or stop before the speed reaches 80 km/h S If sensor check has not been completed, the ABS warning light blinks while driving and ABS system does not operate HINT: When sensor check has been completed, the ABS warning light goes off while driving and blinks in the test mode pattern while standing DLC3 (3) Using SST(s), connect terminals Tc and CG of the DLC3 SST 09843−18040 Tc CG C52361 2005 LEXUS RX330 REPAIR MANUAL (RM1136U) 05−528 DIAGNOSTICS (4) − ABS WITH EBD & BA & TRAC & VSC SYSTEM Read the number of blinks of the ABS warning light and VSC warning light HINT: S S S See the list of DTC (See page 05−532) If every sensor is normal, the normal blinking patterns are output (A cycle of 0.25 second ON and 0.25 second OFF is repeated.) If more than malfunction is detected at the same time, the lowest numbered code will be displayed first Malfunction Code (Example Code 71, 72) 71 0.5 sec 2.5 sec 72 ON OFF sec Repeat 0.5 sec 1.5 sec (5) After performing the check, disconnect the SST(s) from terminals Ts and CG, Tc and CG of the DLC3 and turn the ignition switch OFF SENSOR SIGNAL CHECK (TEST MODE) (USING HAND−HELD TESTER) NOTICE: When having replaced the yaw rate sensor (deceleration sensor) and/or ABS & TRAC actuator assembly (skid control ECU), perform zero point calibration of the yaw rate sensor and deceleration sensor (See step 10.) HINT: S If the ignition switch is turned from ON to the ACC or LOCK position during test mode, DTC of sensor check function will be erased S During test mode, ECU records all DTC of sensor check function By preforming sensor signal check, the codes are erased if normality is confirmed The codes left over are the codes where abnormality was found (a) Procedures for test mode: (1) Turn the ignition switch off (2) Check that the shift lever position is in the P position (3) Connect the hand−held tester to the DLC3 (4) Put the hand−held tester in test mode 2005 LEXUS RX330 REPAIR MANUAL (RM1136U) 05−529 DIAGNOSTICS − (5) 0.13 sec 0.13 sec ABS WITH EBD & BA & TRAC & VSC SYSTEM Check that the ABS warning light and VSC warning light blink HINT: If the ABS warning light and VSC warning light not blink, inspect the ABS warning light circuit and VSC warning light circuit ON Trouble area OFF BR3904 See Page ABS warning light 05−594 VSC warning light 05−597 (b) Check the master cylinder pressure sensor: (1) Leaving the vehicle in a stationary condition and the brake pedal in a free condition for second or more, continue to quickly depress the brake pedal with a force of 98 N (10 kgf, 22 lbf) or more for second or more HINT: At this time, the ABS warning light stays on for seconds (c) Start Position Within ± 5˚ Check the yaw rate: (1) Shift the shift lever to the D position and drive the vehicle at a speed of approx km/h (3 mph), and maintain a 180˚ circular drive for the vehicle (2) Stop the vehicle and shift the shift lever to the P position, check that the skid control buzzer sounds for seconds HINT: End Position F02135 S S S S (d) If the skid control buzzer sounds, the sensor check is completed normally If the skid control buzzer does not sound, check the skid control buzzer circuit (See page 05−613), then perform the sensor check again If the skid control buzzer still does not sound, there is a malfunction in the VSC sensor, so check the DTC Drive the vehicle in a 180˚ circle At the end of the turn, ensure that the vehicle is within ± 5˚ exactly 180˚, and facing the other direction from its original start position Do not spin the wheels Check the speed sensor: (1) Drive the vehicle straight forward at the speed of 45 km/h (28 mph) or higher for several seconds and check that the ABS warning light goes off HINT: The sensor check may not be completed if the vehicle has its wheels spun or its steering wheel is steered during this check (2) Stop the vehicle 2005 LEXUS RX330 REPAIR MANUAL (RM1136U) 05−530 DIAGNOSTICS − ABS WITH EBD & BA & TRAC & VSC SYSTEM (e) Read the DTC by following the tester screen HINT: Please refer to the hand−held tester operator’s manual for further details IF NECESSARY, PERFORM ZERO POINT CALIBRATION OF YAW RATE SENSOR AND DECELERATION SENSOR (USING SST CHECK WIRE) NOTICE: S While obtaining the zero point, not vibrate the vehicle by tilting, moving or shaking it, and keep in a stationary condition (Do not start the engine.) S Be sure to this on a level surface (within an inclination of %) (a) Check that the steering wheel is in the straight−ahead position and shift the shift lever to the P position (b) Clear the zero point calibration: (1) Turn the ignition switch to the ON position DLC3 (2) Ts (c) CG C52361 Using SST(s), connect and disconnect terminals Ts and CG of the DLC3 times or more within seconds SST 09843−18040 (3) Remove the SST(s) from the terminals of the DLC3 Obtain the zero point calibration: (1) Turn the ignition switch off (2) Using SST(s), connect terminals Ts and CG of the DLC3 SST 09843−18040 (3) Turn the ignition switch to the ON position (4) Keep the vehicle in the stationary condition on the level surface for seconds or more (5) Check that the VSC warning light blinks HINT: If the VSC warning light does not blink, perform the zero point calibration again (d) Remove the SST(s) from the terminals of the DLC3 SST 09843−18040 (e) Turn the ignition switch off 10 IF NECESSARY, PERFORM ZERO POINT CALIBRATION OF YAW RATE SENSOR AND DECELERATION SENSOR (USING HAND−HELD TESTER) NOTICE: S While obtaining the zero point, not vibrate the vehicle by tilting, moving or shaking it, and keep in a stationary condition (Do not start the engine.) S Be sure to this on a level surface (within an inclination of %) (a) Check that the steering wheel is in the straight−ahead position and shift the shift lever to P position (b) Hook up the hand−held tester to the DLC3 (c) Turn the ignition switch to the ON position (d) Operate the hand−held tester to clear zero point calibration 2005 LEXUS RX330 REPAIR MANUAL (RM1136U) 05−531 DIAGNOSTICS (e) (f) − ABS WITH EBD & BA & TRAC & VSC SYSTEM Operate the hand−held tester to test mode Obtain zero point of yaw rate sensor and deceleration sensor: (1) Keep the vehicle in the stationary condition on the level surface for seconds or more (2) Check that the VSC warning light blinks HINT: If the VSC warning light does not blink, perform the zero point calibration again (g) Turn the ignition switch off 2005 LEXUS RX330 REPAIR MANUAL (RM1136U) 05−537 DIAGNOSTICS − ABS WITH EBD & BA & TRAC & VSC SYSTEM 05CD1−14 TERMINALS OF ECU SKID CONTROL ECU S1 F45080 Symbols (Terminals No.) BM (S1−2) − GND (S1−1, 32) FR+ (S1−3) − FR− (S1−17) FSW+ (S1−7) − GND (S1−1, 32) Wiring Color Terminal Description Condition Specified Condition IG switch ON, pump motor running 10 to 14 V Front RH wheel speed signal input IG switch ON, slowly turn right front wheel AC generation FSW switch input IG switch ON, brake pedal released to V B−W − W−L, W−B Motor relay test input V−R LG − W−L, W−B FL+ (S1−18) − FL− (S1−4) G−B Front LH wheel speed signal input IG switch ON, slowly turn left front wheel AC generation RR+ (S1−5) − RR− (S1−19) L−B − BR Rear RH wheel speed signal input IG switch ON, slowly turn right rear wheel AC generation RL+ (S1−20) − RL− (S1−6) O−W Rear LH wheel speed signal input IG switch ON, slowly turn left rear wheel AC generation TRC+ (S1−8) − TRC− (S1−22) BR − P ECM communication output IG switch ON Pulse generation ENG+ (S1−9) − ENG− (S1−23) G − L−B ECM communication input IG switch ON Pulse generation V − W−L, W−B Engine rpm signal input Engine idling Pulse generation L−W CAN communication line IG switch OFF 54 to 67 W D/G (S1−13) − GND (S1−1, 32) L−B − W−L, W−B Diagnosis tester communication line IG switch ON 10 to 14 V SP1 (S1−12) − GND (S1−1, 32) BR − W−L, W−B Speed signal output Vehicle drives at about 20 km/h (12 mph) NEO (S1−10) − GND (S1−1, 32) CANH (S1−11) − CANL (S1−25) Pulse generation MRF (S1−14) − R+ (S1−45) R−Y Fail safe motor relay output IG switch ON 10 to 14 V MR (S1−15) − R+ (S1−45) L−Y Motor relay output IG switch ON, pump motor running 10 to 14 V STPO*1 (S1−16) − GND (S1−1, 32) G − W−L, W−B Stop lamp relay output IG switch ON 10 to 14 V +BS (S1−31) − GND (S1−1, 32) L − W−L, W−B Solenoid relay power supply Always 10 to 14 V Stop light switch ON (Brake pedal depressed) to 14 V Stop light switch OFF (Brake pedal depressed) Below 1.5 V STP2 STP2* (S1−21) (S1 21) − GND (S1 (S1−1, 1, 32) TS (S1−24) − GND (S1−1, 32) GR − W−L, W L W−B W B Y − W−L, W−B 2005 LEXUS RX330 REPAIR MANUAL (RM1136U) St lamp Stop l relay l input i t Sensor check input IG switch ON 10 to 14 V 05−538 DIAGNOSTICS STP1*1, *2 (S1−27) − GND (S1−1, 32) W−W W−L, L W W−B B PKB (S1−28) − GND (S1−1, 32) LG − W−L, W−B PKB (S1−28) − GND (S1−1, 32) LG − W−L, W−B WA (S1 (S1−29) 29) − GND (S1−1, (S1 32) V−W W−L, L W−B W B − ABS WITH EBD & BA & TRAC & VSC SYSTEM Stop light switch ON (Brake pedal pushed) to 14 V Stop light switch OFF (Brake pedal released) Below 1.5 V Parking brake switch input IG switch ON, parking brake switch ON Below 1.5 V Parking brake switch input IG switch ON, parking brake switch OFF 10 to 14 V St light Stop li ht switch it h input i t ABS warning i light li ht output t t IG switch ON, ABS warning light ON to 11 V IG switch ON, ABS warning light OFF Below 2.0 V IG switch ON, VSC buzzer sounds Below 1.0 « 10 to 14 V IG switch ON, VSC buzzer does not sound 10 to 14 V BZ (S1−30) − GND (S1−1, 32) O − W−L, W−B Buzzer output VSCW (S1−36) − GND (S1−1, 32) R − W−L, W−B VSC warning light output IG switch ON, VSC warning light ON RRO*3, *4 (S1−39) − GND (S1−1, 32) O − W−L, W−B Rear RH wheel speed signal output Vehicle drives at about 20 km/h (12 mph) Plus generation RLO*3, *4 (S1−40) − GND (S1−1, 32) P − W−L, W−B Rear LH wheel speed signal output Vehicle drives at about 20 km/h (12 mph) Plus generation WFSE (S1−42) − GND (S1−1, 32) G − W−L, W−B WFSE input IG switch ON 10 to 14 V CSW (S1−43) − GND (S1−1, 32) B − W−L, W−B TRAC OFF switch input TRAC OFF switch OFF 10 to 14 V BRL (S1−44) (S1 44) − GND (S1−1, (S1 32) GR − W−L, W L W−B W B B k warning Brake i light li ht output t t Below 2.0 V IG switch ON, BRAKE warning light ON to 11 V IG switch ON, BRAKE warning light OFF Below 2.0 V R+ (S1−45) − GND (S1−1, 32) Y − W−L, W−B Power supply for motor relay IG switch ON 10 to 14 V IG1 (S1−46) − GND (S1−1, 32) P − W−L, W−B IG1 power supply IG switch ON 10 to 14 V *1: w/ Dynamic Laser Cruise Control *2: w/o Dynamic Laser Cruise Control *3: w/ Air Suspension System *4: w/o Air Suspension System 2005 LEXUS RX330 REPAIR MANUAL (RM1136U) SB GR Y GR A B C D ACC ST1 SB 12 11 10 GR Y GR : w/ Air Suspension System : w/o Air Suspension System : w/ Dynamic Laser Cruise Control : w/o Dynamic Laser Cruise Control : w/ Adaptive Front–Lighting System : w/o Adaptive Front–Lighting System Data Link Connector < 4–19> < 4–20> B W IS2 E CANL CANH F CANL L CANH W B W E GND CANH B CANL C D J43(A), J44(B) F Junction Connector CANH BR A W–B A W L W–B BS M Right Rear Quarter Panel II W–B IK J42 Junction Connector W–B Behind the Combination Meter A Left Kick Panel A J1 A Junction Connector EA Front Right Fender CANH A GR CANL A E B W–B P CANH C W W W–B A R W–B Suspension Control ECU< 13–8> A L K B K O W J CANL B W–B I J 12 IS2 W–B H I B W W–B L W–B G H CANL IQ1 J22(B), J23(A), J24(D), J25(E), J26(F), J27(C) Junction Connector 3G F S10 Steering Angle Sensor 12 IQ1 10 1G J37 Junction Connector W F W W–B 3C Combination Meter System < 34–11> E G SB Y B CANH 10 CANL Y1 Yaw Rate Sensor 18 B CANL A E AFS ECU< 14–5> Left Side of the Instrument Panel O (∗1) IJ E A P (∗1) W–B 507 Cowl Side Panel LH A C A B W–B W–B W–B J6 Junction Connector IH J13 Junction Connector A P (∗1) D B O (∗1) D B J18(A), J19(B) Junction Connector A B B P W–B W–L W–B A B B O R P BR O P 10 4E CANH BAT 1M R 4E GND B R 15 IO1 IG O 14 IO1 R V GR 13 IO1 VSCW 36 ESS W WA 29 3C IG L BRL 44 BR W Headlight Beam Level Control ECU (∗6)< 15–3> AFS ECU (∗5) < 14–5> T6 TRAC Off SW B8 Brake Pedal Load Sensing SW O (∗1) P (∗1) SP1 12 16 IO1 T22 Tire Pressure Warning Standardization SW P W–B LG CANL 25 L IA2 CANH 11 Active Circuit BR O (∗2) P (∗2) GND1 32 11 3C BR 39 W–B IA2 RRO 40 E A J30(B), J31(A) Junction Connector PKB 3F GR STP1 Speedometer STPO Tire Pressure STP2 TRAC OFF WFSE 28 Slip 27 D B BRAKE 16 3F A ABS 21 C 8(A), C 9(B) Combination Meter VSC 42 BR A Left Kick Panel TS RLO 41 19 4E ∗ : w/ Air Suspension System ∗ : w/o Air Suspension System II INIT 43 A Battery D/G ∗ ∗ ∗ ∗ ∗ ∗ LG CSW S3 Speed Sensor Front RH S2 Speed Sensor Front LH W 24 W (∗4) FSW+ W (∗3) 1 FL MAIN 0W TRC– G (∗3) GND2 1 7A TRC+ LG 30A ABS NO DCC 140A ALT 1 50A ABS NO 2 D S1 Skid Control ECU with Actuator W–L R V B G L R L Y W–B 2 ENG– GR (∗3) 17 22 G P C 11 IQ1 Y 18 13 23 BRK Relay < 8–9> < 8–10> O FR– L–B FR+ GR 31 FL+ 10 IQ1 L 14 +BS P 15 MRF G 45 MR ENG+ IQ1 IA2 B FL– S1 Skid Control ECU with Actuator NEO IA2 BR RR– Data Link Connector < 4–18> < 4–19> Y 19 IA2 L–B RR+ 10 L RL– IA2 G IA2 V BR RL+ Engine Control Module < 4–13> LG Y 20 BZ IO1 L–B 10 1F Y L R L R 7 2G 30 IG1 BM IO1 W 2G IO1 O 46 IS1 B 12 1G 5A GAUGE NO 10A ECU–IG NO IG1 Relay 1I O 19 1F 5A ECU–IG NO 11 1F IS1 P 1O B–W 1A R+ 1 30A AM2 5A ECU–B 100A INP–J/B 1I 5A AM1 2 VSC MTR NO Relay 1I 2G VSC MTR NO Relay 7 2D ID1 L B–Y L–B W (∗1) 7B BZ IO1 2F 7C ID1 R R IG1 B C D P LG G GR Y V8 VSC Warning Buzzer GR V LG Y GR B (∗2) G W (∗1) O B–W I14 Ignition SW A B GR A LEXUS RX 330 (EWD612U) P 2 IA4 10 1D B (∗2) LEXUS RX 330 (EWD612U) ST2 Y GR Parking Brake SW < 1–7> A Y GR C D SB GR Stop Light SW < 8–9> A B GR B LEXUS RX 330 (EWD612U) V A S26 Speed Sensor Rear RH IG2 S25 Speed Sensor Rear LH SB AM2 R 1F A J9 Junction Connector C A J 7(B), J 8(A) Junction Connector G A SB IG1 M u ltip le x C o m m u n ic a tio n S y s te m (C A N ) V S C a n d T ire P re s s u re W a rn in g S y s te m SB Y P AM1 O V S C a n d T ire P re s s u re W a rn in g S y s te m 10 RX 330 (Cont' d) M OVERALL ELECTRICAL WIRING DIAGRAM V S C a n d T ire P re s s u re W a rn in g S y s te m (Cont next page) 508 P o w e r S o u rc e 10 RX 330 (Cont' d) M OVERALL ELECTRICAL WIRING DIAGRAM 506 (Cont next page) 10 RX 330 05−569 DIAGNOSTICS DTC − ABS WITH EBD & BA & TRAC & VSC SYSTEM C1223/43 ABS CONTROL SYSTEM MALFUNCTION HINT: When DTC C1223/43 is memorized, there is no malfunction in the skid control ECU CIRCUIT DESCRIPTION DTC No C1223/43 DTC Detecting Condition Malfunction in ABS control system Trouble Area ABS control system INSPECTION PROCEDURE (a) CHECK DTC Check if the DTCs other than C1223/43 are recorded (See page 05−519) NEXT REPAIR CIRCUIT INDICATED BY OUTPUT CODE 2005 LEXUS RX330 REPAIR MANUAL (RM1136U) 05CD8−01 05−584 DIAGNOSTICS DTC − ABS WITH EBD & BA & TRAC & VSC SYSTEM C1249/49 OPEN CIRCUIT IN STOP LIGHT SWITCH CIRCUIT CIRCUIT DESCRIPTION DTC No DTC Detecting Condition C1249/49 S When IG1 terminal voltage is 9.5 to 17.2 V, an open circuit of the stop lamp switch continues for 0.3 sec or more S When the brake pedal load sensing switch is on, the master cylinder pressure is Mpa or more and the deceleration calculated from the vehicle speed is 0.2 G or more, the stop lamp switch is off for sec or more 2005 LEXUS RX330 REPAIR MANUAL (RM1136U) Trouble Area S Stop lamp bulb S Stop lamp switch circuit 05CDD−19 05−585 DIAGNOSTICS − ABS WITH EBD & BA & TRAC & VSC SYSTEM WIRING DIAGRAM GR(*3) J8 J/C B Skid Control ECU with Actuator Engine Room R/B BRK Relay Istrument Panel J/B W(*3) IA1 GR(*4) B 27 S1 STP1 W(*3) B 13 1C 1M W (*4) Rear J/B BB1 L L 20 5C 10 5C 19 5C 5C 1P L S31 Stop Light LH L S32 Stop Light RH W−B G GR S13 Stop Lamp Switch W−B 2 H28 Hight Mounted Stop Light Instrument Panel J/B 1C B STOP 1A J35 J/C A A A W−B W(*1) B(*2) FL Block INP−J/B W 7A ALT 2 7C 7B W−B FL MAIN Battery *1: w/ Air Suspension System *2: w/o Air Suspension System *3: w/ Dynamic Laser Cruise Control *4: w/o Dynamic Laser Cruise Control J36 J/C A BR BO G26399 2005 LEXUS RX330 REPAIR MANUAL (RM1136U) 05−586 DIAGNOSTICS − ABS WITH EBD & BA & TRAC & VSC SYSTEM INSPECTION PROCEDURE (a) CHECK STOP LAMP SWITCH OPERATION(STOP LAMP SWITCH CIRCUIT) Check that the stop light comes on when the brake pedal is depressed and turns off when the brake pedal is released Standard: Stop lamp switch function is normal NG Go to step OK INSPECT SKID CONTROL ECU TERMINAL VOLTAGE(STP TERMINAL) (a) (b) Skid Control ECU (harness side connector) S1 STP1 G24767 Disconnect the skid control ECU connector S1 Measure the voltage according to the value(s) in the table below Standard: Tester Connection Switch condition Specified Condition S1−27 (STP1) − Body ground Brake pedal depressed to 14 V S1−27 (STP1) − Body ground Brake pedal released Below V NG Go to step OK CHECK REAR COMBINATION LAMP ASSY LH (See page 65−2) NG REPLACE REAR COMBINATION LAMP ASSY LH OK (a) (b) (c) RECONFIRM DTC Clear the DTCs Turn the ignition switch to the ON position Check if the same DTCs are recorded (See page 05−519) HINT: It is suspect that the DTCs output was caused by the poor connection of the connector terminal NO RECOVERLY TO NORMAL YES REPLACE ABS & TRACTION ACTUATOR ASSY (See page 32−39) 2005 LEXUS RX330 REPAIR MANUAL (RM1136U) 05−587 DIAGNOSTICS − ABS WITH EBD & BA & TRAC & VSC SYSTEM CHECK HARNESS AND CONNECTOR(STOP LAMP SWITCH − SKID CONTROL ECU) (a) Skid Control ECU (harness side connector) S1 (b) Disconnect the stop lamp switch connector S13 and skid control ECU connector S1 Measure the resistance according to the value(s) in the table below Standard: Tester Connection Specified Condition S1−27 (STP1) − S13−1 (STP) Below W STP1 Stop Lamp Switch (harness side connector) S13 STP NG G25017 C82562 G26188 REPAIR OR CONNECTOR REPLACE HARNESS OR OK REPLACE ABS & TRACTION ACTUATOR ASSY (See page 32−39) INSPECT STOP LAMP SWITCH ASSY Stop Lamp Switch Assy Û Free Pushed In (a) (b) Disconnect the stop lamp switch assy connector S31 Measure the resistance according to the value(s) in the table below Standard: Switch condition Tester connection Specified condition Switch pin free 1−2 Below W Switch pin pushed in 1−2 10 kW or higher NG REPLACE STOP LAMP SWITCH ASSY E65594 OK REPAIR OR REPLACE HARNESS OR CONNECTOR (STOP LAMP CIRCUIT) 2005 LEXUS RX330 REPAIR MANUAL (RM1136U) 05−536 DIAGNOSTICS − ABS WITH EBD & BA & TRAC & VSC SYSTEM 05CD0−01 LOCATION FL Block J/B No.2 F ABS MTR Relay ABS & TRAC Actuator (Skid control ECU) 4WD: Brake Fluid Level Warning Switch Rear Speed Sensor Front Speed Sensor Sensor Rotor 2WD: Sensor Rotor Combination Meter F ABS Warning Light F VSC Warning Light F Brake Warning Light F TRAC OFF Indicator Light F SLIP Indicator Light Skid Control Sensor Steering Angle Sensor Brake Pedal Load Sensing Switch Skid Control Buzzer Parking Brake Switch Driver Side J/B Yaw Rate Sensor (Include Deceleration Sensor) DLC3 Stop Lamp Switch TRAC Control Switch G26151 2005 LEXUS RX330 REPAIR MANUAL (RM1136U) ... re s s u re W a rn in g S y s te m (Cont next page) 508 P o w e r S o u rc e 10 RX 330 (Cont' d) M OVERALL ELECTRICAL WIRING DIAGRAM 506 (Cont next page) 10 RX 330 05−569 DIAGNOSTICS DTC − ABS... (See page 65−2) NG REPLACE REAR COMBINATION LAMP ASSY LH OK (a) (b) (c) RECONFIRM DTC Clear the DTCs Turn the ignition switch to the ON position Check if the same DTCs are recorded (See page. .. normally S If the skid control buzzer does not sound, check the skid control buzzer circuit (See page 05−613), then perform the sensor check again If the skid control buzzer still does not sound,