Đang tải... (xem toàn văn)
Tài liệu hướng dẫn sửa chữa Hệ thống phanh trên xe Toyota land cruiser workshop service manual 1999 2007 brake he thong phanh. Cung cấp các thông tin cần thiết cho Kỹ thuật viện tiến hành chẩn đoán, sửa chữa nhanh chóng, chính xác, hiệu quả
BR-4 BRAKE - BRAKE FLUID BRAKE FLUID BR12E-07 BLEEDING HINT: If any work is done on the brake system or if air in the brake lines is suspected, bleed the air from the system When bleeding, keep the amount of the fluid within the line of reservoir between Min and Max NOTICE: Do not let brake fluid remain on painted surfaces Wash it off immediately With the reservoir cap removed, when depressing the brake pedal, the fluid will spray FILL RESERVOIR WITH BRAKE FLUID Fluid: SAE J1703 or FMVSS NO 116 DOT3 In case of using TOYOTA hand-held tester: BLEED HYDRAULIC BRAKE BOOSTER HINT: If the hydraulic brake booster has been disassembled, disconnect the brake line from the hydraulic brake booster or if the reservoir becomes empty, bleed the hydraulic brake booster (a) Turn the ignition switch OFF, depress the brake pedal more than 40 times HINT: When a pressure in power supply system is released, reaction force becomes light and stroke becomes longer (b) Turn the ignition switch ON, check that the pump stops after approx 30 to 40 sec NOTICE: When the pump does not stop, repeat step (a) and (b) again (c) With the ignition switch remained ON, depress the brake pedal more than 20 times (d) Observe the procedure in step and bleed the right and left front brake caliper (e) Holding the brake pedal depressed, bleed the right and left rear brake caliper HINT: It is not necessary to depress the pedal continuously, as brake fluid flows out by first depressing TOYOTA Hand-held Tester (f) Connect TOYOTA hand-held tester (1) Turn the ignition switch OFF, connect the TOYOTA hand-held tester to DLC3 (2) Turn the ignition switch ON and select ”AIR BLEEDING” on the TOYOTA hand-held tester HINT: Please refer to the TOYOTA hand-held tester operator’s manual for further details DLC3 F06425 2004 LAND CRUISER (RM1071U) Author: Date: 2140 BR-5 BRAKE (g) (h) (i) (j) (k) - BRAKE FLUID Bleed right front brake line (1) Select ”FR LINE” on the TOYOTA hand-held tester (2) With ”FR LINE” turned ON with the TOYOTA handheld tester, depress the brake pedal and hold it to bleed the right front brake caliper (3) Repeat step (2) until there are no more air bubbles in the fluid Bleed left front brake line (1) Select ”FL LINE” on the TOYOTA hand-held tester (2) With ”FL LINE” turned ON with the TOYOTA handheld tester, depress the brake pedal and hold it to bleed the left front brake caliper (3) Repeat step (2) until there are no more air bubbles in the fluid w/ ABS & TRAC & VSC only: Bleed rear brake line (1) Select ”RR LINE” on the TOYOTA hand-held tester (2) With ”RR LINE” turned ON with the TOYOTA handheld tester, bleed the left and right rear brake caliper Disconnect the TOYOTA hand-held tester from DLC3 Clear the DTC (See page DI-505 ) In case of using ABS actuator checker (SST): BLEED HYDRAULIC BRAKE BOOSTER HINT: If the hydraulic brake booster has been disassembled, disconnect the brake line from the hydraulic brake booster or if the reservoir becomes empty, bleed the hydraulic brake booster (a) w/ ABS Only: Disconnect the connectors from the hydraulic brake booster w/ ABS & BA & TRAC & VSC Only: F04459 F09169 F09632 2004 LAND CRUISER (RM1071U) Author: Date: 2141 BR-6 BRAKE (b) - BRAKE FLUID Connect the actuator checker (SST) to the hydraulic brake booster side wire harness via the sub-wire harness (SST), as shown in the chart below SST 09990-00150, 09990-00480 HINT: Connect the connector with the label of ”AIR BLEED” attached to the connector of actuator checker (c) Connect the red cable of the checker to the battery positive (+) terminal and the black cable to the negative (-) terminal Sub-wire Harness S (SST) AIR BLEED FRONT Hydraulic Brake Booster REAR F02821 (d) Turn the ignition switch OFF, depress the brake pedal more than 40 times HINT: When a pressure in power supply system is released, reaction force becomes light and stroke becomes longer (e) Turn the ignition switch ON, check that the pump stops after 30 to 40 sec NOTICE: When the pump does not stop, repeat step (d) and (e) again (f) With the ignition switch remained ON, depress the brake pedal more than 20 times (g) Observe the procedure in step and bleed the right and left front wheel caliper (h) Holding the brake pedal depressed, bleed the right and left rear brake caliper HINT: It is not necessary to depress the pedal continuously, as brake fluid flows out by first depressing 2004 LAND CRUISER (RM1071U) Author: Date: 2142 BR-7 BRAKE - BRAKE FLUID (i) F02823 Bleed right front brake line (1) Turn the selector switch of the actuator checker to the ”FRONT RH” position (2) Push and hold in MAIN push switch, depress the brake pedal and hold it to bleed the right front brake caliper NOTICE: Do not keep the MAIN switch pushed in for more than 10 sec When operating it continuously, set the interval of more than 20 sec (3) Repeat step (2) until there are no more air bubbles in the fluid (j) F02824 Bleed left front brake line (1) Turn the selector switch of the actuator checker to the ”FRONT LH” position (2) Push and hold in the MAIN push switch, depress the brake pedal and hold it to bleed the left front brake caliper NOTICE: Do not keep the MAIN switch pushed in for more than 10 sec When operating it continuously, set the interval of more than 20 sec (3) Repeat step (2) until there are no more air bubbles in the fluid (k) F02825 w/ ABS & TRAC & VSC only: Bleed right rear brake line (1) Push and hold in the ”SUB LH” and ”SUB RH” switches, bleed the right rear brake caliper NOTICE: Do not keep the MAIN switch pushed in for more than 10 sec When operating it continuously, set the interval of more than 20 sec (2) Repeat step (1) until there are no more air bubbles in the fluid 2004 LAND CRUISER (RM1071U) Author: Date: 2143 BR-8 BRAKE (l) (m) (n) (o) (a) (b) (c) (d) F04458 (e) (a) - BRAKE FLUID Observe the procedure in step (k) and bleed left rear brake line Disconnect the actuator checker (SST) and sub-wire harness (SST) from the actuator SST 09990-00150, 09990-00480 Connect the connectors to the hydraulic brake booster Clear the DTC (See page DI-505 ) BLEED BRAKE LINE Connect the vinyl tube to the brake caliper Depress the brake pedal several times, then loosen the bleeder plug with the pedal held down At the point when fluid stops coming out, tighten the bleeder plug, then release the brake pedal Repeat (b) and (c) until all the air in the fluid has been bled out Repeat the above procedure to bleed the brake line for each wheel Torque: 11 N·m (110 kgf·cm, ft·lbf) CHECK FLUID LEVEL IN RESERVOIR With the ignition switch OFF, depress the brake pedal more than 40 times HINT: When a pressure in power supply system is released, reaction force becomes light and stroke becomes longer (b) Remove the reservoir cap Add brake fluid up to the ”MAX” line Fluid: SAE J1703 or FMVSS NO 116 DOT3 2004 LAND CRUISER (RM1071U) Author: Date: 2144 BR-1 BRAKE - BRAKE PEDAL BR0X9-02 COMPONENTS LH Lower Panel No Heater to Register Duct Hydraulic Brake Booster Assembly Lower No Panel Stop Light Switch Clip 20 (200, 14) Clevis Pin Cushion ABS ECU or ABS & BA & TRAC & VSC ECU Return Spring 5.0 (51, 44 in.·lbf) Brake Pedal Pedal Pad Cowl Side Trim Front Door Scuff Plate N·m (kgf·cm, ft·lbf) : Specified torque MP Grease F08309 2004 LAND CRUISER (RM1071U) Author: Date: 2147 BR-13 BRAKE - BRAKE PEDAL BR0XB-02 INSTALLATION (a) (b) (c) REASSEMBLY BRAKE PEDAL Install the pedal pad Install the stop light switch cushion Temporarily install the stop light switch to the pedal bracket Install the return spring with cushion and pedal pad (d) HINT: Apply MP grease to the parts indicates by arrow (See page BR-1 1) F06414 INSTALL BRAKE PEDAL ASSEMBLY Install the brake pedal assembly and temporarily fasten the bolts INSTALL HYDRAULIC BRAKE BOOSTER (See page BR-67 ) TIGHTEN BOLTS OF BRAKE PEDAL BRACKET Torque: 20 N·m (200 kgf·cm, 14 ft·lbf) AFTER INSTALLATION, FILL BRAKE RESERVOIR WITH BRAKE FLUID AND BLEED BRAKE SYSTEM (See page BR-4 ) CHECK FOR LEAKS CHECK AND ADJUST BRAKE PEDAL (See page BR-9 ) 2004 LAND CRUISER (RM1071U) Author: Date: 2149 BR-9 BRAKE - BRAKE PEDAL BRAKE PEDAL BR0JB-08 ON-VEHICLE INSPECTION Push Rod Stop Light Switch Pedal Height F09171 CHECK PEDAL HEIGHT Pedal height from asphalt sheet: 183.7 - 193.7 mm (7.232 - 7.626 in.) If the pedal height is incorrect, adjust it IF NECESSARY, ADJUST PEDAL HEIGHT (a) Remove the scuff plate, cowl side trim, lower No panel, LH lower panel and No heater to register duct (See page BO-81 ) (b) Remove the steering wheel pad, steering wheel lower No and No covers, steering wheel, combination switch, column upper and lower covers, steering column assembly and thrust stopper (See page SR-14 or SR-29 ) (c) Disconnect the connector from the stop light switch (d) Loosen the stop light switch lock nut and remove the stop light switch (e) Loosen the push rod lock nut (f) Adjust the pedal height by turning the pedal push rod (g) Tighten the push rod lock nut Torque: 25 N·m (260 kgf·cm, 19 ft·lbf) (h) Install the stop light switch (i) Connect the connector to the stop light switch (j) Push in the brake pedal - 15 mm (0.20 - 0.59 in.), turn the stop light switch to lock the nut in the position where the stop light goes off (k) After installation, push in the brake pedal - 15 mm (0.20 - 0.59 in.), check that stop light lights up (l) After adjusting the pedal height, check the pedal freeplay (m) Install the thrust stopper, steering column assembly, column upper and lower covers, combination switch, steering wheel, steering wheel lower No and No covers, and steering wheel pad (See page SR-14 or SR-29 ) (n) Install the No heater to register duct, LH lower panel, lower No panel, cowl side trim and scuff plate (See page BO-81 ) (a) (b) CHECK PEDAL FREEPLAY Stop the engine and depress the brake pedal more than 40 times until there is no more pressure left in the booster Push in the pedal by hand until the second point of resistance begins to be felt, then measure the distance, as shown Pedal freeplay: 1.0 - 6.0 mm (0.039 - 0.236 in.) Pedal Freeplay F02849 2004 LAND CRUISER (RM1071U) Author: Date: 2145 BR-10 BRAKE - BRAKE PEDAL If incorrect, check the stop light switch clearance If the clearance is OK, then troubleshoot the brake system Stop light switch clearance: 1.9 mm (0.075 in.) HINT: The freeplay to the 1st point of resistance is due to the play between the clevis, pedal link and pin It is 1.0 - 6.0 mm (0.039 0.236 in.) on the pedal (a) (b) Pedal Reserve Distance F02850 CHECK PEDAL RESERVE DISTANCE Remove the floor carpet Release the parking brake With the engine running, depress the pedal and measure the pedal reserve distance, as shown Pedal reserve distance at 490 N (50 kgf, 110.1 lbf): More than 116 mm (4.57 in.) If the reserve distance is incorrect, troubleshoot the brake system 2004 LAND CRUISER (RM1071U) Author: Date: 2146 BR-12 BRAKE - BRAKE PEDAL BR0XA-02 REMOVAL (a) REMOVE HYDRAULIC BRAKE BOOSTER ASSEMBLY (See page BR-60 ) REMOVE BRAKE PEDAL ASSEMBLY Disconnect the connector from the stop light switch (b) (c) (a) (b) (c) Remove the bolts Remove the brake pedal assembly DISASSEMBLY BRAKE PEDAL ASSEMBLY Remove the return spring with cushion Remove the stop light switch Remove the pedal pad F06414 2004 LAND CRUISER (RM1071U) Author: Date: 2148 BR-28 BRAKE - REAR BRAKE CALIPER BR0JS-03 REMOVAL F04992 DISCONNECT FLEXIBLE HOSE Remove the union bolt and gasket from the caliper, then disconnect the flexible hose from the caliper Use a container to catch brake fluid as it drains out Torque: 30 N·m (310 kgf·cm, 22 ft·lbf) HINT: At the time of installation, please refer to the following item Install the flexible hose lock securely in the lock hole in the caliper REMOVE CALIPER (a) Hold the sliding pin and loosen the installation bolts Torque: 26 N·m (270 kgf·cm, 20 ft·lbf) (b) Remove the installation bolts (c) Remove the caliper from the torque plate REMOVE BRAKE PADS WITH ANTI- SQUEAL SHIMS REMOVE PAD SUPPORT PLATES 2004 LAND CRUISER (RM1071U) Author: Date: 2164 BR-27 BRAKE - REAR BRAKE CALIPER REAR BRAKE CALIPER BR0JR-06 COMPONENTS Pad Support Plate Inner Anti-squeal Shim Anti-squeal Shim Anti-squeal Shim Inner Anti-squeal Shim Inner Pad Outer Pad Bleeder Plug 11 (110, 8) Piston Seal Brake Caliper Boot Pad Support Plate Piston 30 (310, 22) Gasket 26 (270, 20) 103 (1,050, 76) Sliding Pin Boot Torque Plate Sliding Pin Bushing Boot 103 (1,050, 76) N·m (kgf·cm, ft·lbf) : Specified torque Non-reusable part Lithium soap base glycol grease Disc brake grease Plug F05007 2004 LAND CRUISER (RM1071U) Author: Date: 2163 BR-29 BRAKE - REAR BRAKE CALIPER BR0TC-04 DISASSEMBLY REMOVE CYLINDER BOOTS Using a screwdriver, remove the cylinder boot from the caliper F04987 (a) REMOVE PISTON Place a piece of cloth or a similar, object between the piston and caliper (b) Use compressed air to remove the piston from the cylinder CAUTION: Do not place your fingers in front of the piston when using compressed air F05029 F04988 REMOVE PISTON SEALS FROM BRAKE CYLINDER Using a screwdriver, remove the piston seals from the caliper REMOVE PIN BOOT AND SLIDING BUSHING Using a screwdriver, pull out sliding pin, pin boot and sliding bushing HINT: Tape the screwdriver tip before use NOTICE: At the time of reassembly, please refer to the following item Insert the sliding pin with sliding bushing into the lower part, and insert the sliding pin without sliding bushing into the upper part 2004 LAND CRUISER (RM1071U) Author: Date: 2165 BR-30 BRAKE - REAR BRAKE CALIPER BR0JU-03 INSPECTION MEASURE PAD LINING THICKNESS Using a ruler, measure the pad lining thickness Standard thickness: 12.0 mm (0.472 in.) Minimum thickness: 1.0 mm (0.039 in.) Replace the pad if the pad’s thickness is at the minimum or if it shows signs of uneven wear F05005 (a) (b) MEASURE DISC THICKNESS Temporarily fasten the disc with the hub nuts Using a micrometer, measure the disc thickness Standard thickness: 18.0 mm (0.709 in.) Minimum thickness: 16.0 mm (0.611 in.) Replace the disc if the thickness of the disc is at the minimum thickness or less Replace the disc or grind it on a lathe if it is scored or is worn unevenly F05008 F05009 MEASURE DISC RUNOUT Using a dial indicator, measure the disc runout at a position 10 mm (0.39 in.) from the outside edge Maximum disc runout: 0.1 mm (0.0040 in.) If the disc’s runout is at the maximum value or greater, check the bearing play is in the axial direction and check the axle hub runout (See page SA-84 ) If the bearing play and axle hub runout are not abnormal, adjust the disc runout or grind it on an ”OnCar” brake lathe IF NECESSARY, ADJUST DISC RUNOUT (a) Remove the torque plate from the backing plate (b) Remove the hub nuts and the disc Reinstall the disc rotating 1/5 of a turn from its original position on the hub Install and torque the hub nuts Torque: 103 N·m (1,050 kgf·cm, 76 ft·lbf) Remeasure the disc runout Make a note of the runout and the disc’s position on the hub (c) Repeat (b) until the disc has been installed on the remaining hub positions (d) If the minimum runout recorded in (b) and (c) is less than 0.1 mm (0.0040 in.), install the disc in that position (e) If the minimum runout recorded in (b) and (c) is greater than 0.1 mm (0.0040 in.), replace the disc and repeat step (f) Install the torque plate and tighten the bolts Torque: 103 N·m(1,050 kgf·cm, 76 ft·lbf) 2004 LAND CRUISER (RM1071U) Author: Date: 2166 BR-32 BRAKE - REAR BRAKE CALIPER BR0JW-03 INSTALLATION Installation is in the reverse order of removal (See page BR-28 ) HINT: After installation, fill the brake reservoir with brake fluid and bleed brake system (See page BR-4 ) Check for leaks 2004 LAND CRUISER (RM1071U) Author: Date: 2168 BR-31 BRAKE - REAR BRAKE CALIPER BR0JV-03 REASSEMBLY Reassembly is in the reverse order of disassembly (See page BR-29 ) HINT: Apply lithium soap base glycol grease to the parts indicated by the arrows (See page BR-27 ) 2004 LAND CRUISER (RM1071U) Author: Date: 2167 BR-28 BRAKE - REAR BRAKE CALIPER BR0JS-03 REMOVAL F04992 DISCONNECT FLEXIBLE HOSE Remove the union bolt and gasket from the caliper, then disconnect the flexible hose from the caliper Use a container to catch brake fluid as it drains out Torque: 30 N·m (310 kgf·cm, 22 ft·lbf) HINT: At the time of installation, please refer to the following item Install the flexible hose lock securely in the lock hole in the caliper REMOVE CALIPER (a) Hold the sliding pin and loosen the installation bolts Torque: 26 N·m (270 kgf·cm, 20 ft·lbf) (b) Remove the installation bolts (c) Remove the caliper from the torque plate REMOVE BRAKE PADS WITH ANTI- SQUEAL SHIMS REMOVE PAD SUPPORT PLATES 2004 LAND CRUISER (RM1071U) Author: Date: 2164 BR-24 BRAKE - REAR BRAKE PAD REAR BRAKE PAD BR0JP-07 COMPONENTS 26 (270, 20) Brake Caliper Anti-squeal Shim Pad Support Plate Outer Pad Inner Anti-squeal Shim Inner Anti-squeal Shim Inner Pad N·m (kgf·cm, ft·lbf) : Specified torque Disc brake grease Pad Support Plate Anti-squeal Shim F05006 2004 LAND CRUISER (RM1071U) Author: Date: 2160 BR-25 BRAKE - REAR BRAKE PAD BR0TB-04 REPLACEMENT REMOVE REAR WHEEL INSPECT PAD LINING THICKNESS Check the pad thickness through the caliper inspection hole and replace pads if not within the specification Minimum thickness: 1.0 mm (0.039 in.) F04989 (a) (b) F04990 REMOVE BRAKE CALIPER Remove the mounting bolts Remove the caliper and suspend it so the hose is not stretched HINT: Do not disconnect the flexible hose REMOVE PADS AND ANTI-SQUEAL SHIMS REMOVE PAD SUPPORT PLATES NOTICE: The pad support plates can be used again provided that they have sufficient rebound, no deformation, cracks or wear, and have had all rust, dirt and foreign particles cleaned off CHECK DISC THICKNESS AND RUNOUT (See page BR-30 ) INSTALL PAD SUPPORT PLATES INSTALL NEW PADS NOTICE: When replacing worn pads, the anti-squeal shims must be replaced together with the pads Install the anti-squeal shims to the pads HINT: Apply disc brake grease to both sides of the inner anti-squeal shims (See page BR-24 ) NOTICE: Do not allow oil or grease to get on the rubbing face (a) (b) INSTALL CALIPER Draw out a small amount of brake fluid from the reservoir Press in the pistons with a hammer handle or an equivalent HINT: F04991 Always change the pads on one wheel at a time as there is a possibility of the opposite piston flying out If the piston is difficult to push in, loosen the bleeder plug and push in the piston while letting some fluid escape 2004 LAND CRUISER (RM1071U) Author: Date: 2161 BR-26 BRAKE (c) (d) 10 11 12 - REAR BRAKE PAD Install the caliper carefully so the boot is not wedged Install mounting bolts Torque: 26 N·m (270 kgf·cm, 20 ft·lbf) INSTALL REAR WHEEL Torque: 103 N·m (1,050 kgf·cm, 76 ft·lbf) DEPRESS BRAKE PEDAL SEVERAL TIMES CHECK THAT FLUID LEVEL IS AT MAX LINE 2004 LAND CRUISER (RM1071U) Author: Date: 2162 BR-71 BRAKE - REAR SPEED SENSOR REAR SPEED SENSOR BR0K4-06 COMPONENTS 13 (130, 9) 8.0 (82, 71 in.·lbf) Rear Speed Senser O-ring N·m (kgf·cm, ft·lbf) : Specified torque Non-reusable part F05024 2004 LAND CRUISER (RM1071U) Author: Date: 2207 BR-73 BRAKE - REAR SPEED SENSOR BR0K6-13 INSTALLATION Installation is in the reverse order of removal (See page BR-72 ) HINT: After installation, check the speed sensor signal (See page DI-505 ) 2004 LAND CRUISER (RM1071U) Author: Date: 2209 BR-72 BRAKE - REAR SPEED SENSOR BR0K5-06 REMOVAL REMOVE SPEED SENSOR (a) Disconnect the speed sensor connector (b) Remove the clamp bolt from the upper control bracket Torque: 13 N·m (130 kgf·cm, ft·lbf ) (c) Remove the resin clips, holding the sensor wire harness from the frame, upper control arm and axle housing F05004 (d) (e) Remove the mounting bolt and speed sensor Torque: 8.0 N·m (82 kgf·cm, 71 in.·lbf) Remove the O-ring from the speed sensoe F05003 2004 LAND CRUISER (RM1071U) Author: Date: 2208 BR-2 BRAKE - TROUBLESHOOTING TROUBLESHOOTING BR0JA-17 PROBLEM SYMPTOMS TABLE Use the table below to help you find the cause of the problem The numbers indicate the priority of the likely cause of the problem Check each part in order If necessary, replace these parts Symptom Low pedal or spongy pedal Suspect Area See page Fluid leaks for brake system Air in brake system Piston seals (Worn or damaged) DI-655 BR-4 BR-18 BR-27 BR-40 Hydraulic brake booster (Faulty) Brake drags Brake pedal freeplay (Minimum) Parking brake lever travel (Out of adjustment) Parking brake wire (Sticking) Parking brake (Shoe clearance out of adjustment) Pad (Cracked or distorted) Piston (Stuck) Piston (Frozen) Tension or return spring (Faulty) Hydraulic brake booster (Faulty) Piston (Stuck) BR-18 BR-27 BR-15 BR-24 BR-18 BR-27 BR-21 BR-30 BR-40 Pad (Cracked or distorted) Brake pulls Piston (Frozen) Disc (Scored) Hydraulic brake booster (Faulty) Fluid leaks for brake system Air in brake system Pad (Worn) DI-655 BR-4 BR-15 BR-24 BR-15 BR-24 BR-15 BR-24 BR-15 BR-24 BR-21 BR-30 BR-40 Pad (Cracked or distorted) Hard pedal but brake inefficient BR-9 BR-14 BR-33 BR-15 BR-24 BR-18 BR-27 BR-18 BR-27 BR-33 BR-40 Pad (Oily) Pad (Glazed) Disc (Scored) Hydraulic brake booster (Faulty) 2004 LAND CRUISER (RM1071U) Author: Date: 2138 BR-3 BRAKE - TROUBLESHOOTING Pad (Cracked or distorted) 10.Shoe hold-down spring (Damaged) BR-15 BR-24 BR-18 BR-27 BR-21 BR-30 BR-24 BR-27 BR-15 BR-24 BR-15 BR-24 BR-33 BR-15 BR-24 BR-33 Noise from hydraulic brake booster (Abnormal pump motor operation noise) Accumulator bracket clearance (Out of adjustment) BR-66 Brake warning light lights up*1 (Parking brake pedal released) Brake fluid level Hydraulic brake booster power supply system (Faulty) BR-40 Brake warning light lights up and brake warning buzzer sounds*2 Hydraulic brake booster power supply system (Faulty) BR-40 ABS warning light lights up*3 Anti - lock brake system (Faulty) Hydraulic brake booster power supply system (Faulty) BR-40 Installation bolt (Loose) Disc (Scored) Noise from brakes Pad support plate (Loose) Sliding pin (Worn) Pad (Dirty) Pad (Glazed) Tension or return spring (Faulty) Anti-squeal shim (Damaged) *1, *3: The light may stay on for about 60 seconds after the engine is started It is normal if it goes out after a while * , * : Depressing the brake pedal repeatedly may turn on the warning light and buzzer It is normal if the light goes off and the buzzer stops sounding after a few seconds * : While ABS warning light is ON 2004 LAND CRUISER (RM1071U) Author: Date: 2139