Brake System GENERAL... BR - 2 ANTI-LOCK BRAKE SYSTEM... BR - 3

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Alexandra Copeland
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1 Brake System GENERAL... BR - ANTI-LOCK BRAKE SYSTEM... BR - 3

2 BR - GENERAL BRAKE SYSTEM SPECIFICATIS EJTD000 Master cylinder Tandem type I.D. mm(in.) 0.64 mm (0.83 in.) Fluid level warning sensor Provided Brake booster Vacuum Boosting ratio 4.5 : Proportioning valve Cut-in pressure (Split point) 5 kg/cm² Decompression ratio 0.7 : Front brake Floating type with ventilated disc Disc O.D. 34 mm (9.3 in.) Disc thickness 8 mm (0.709 in.) Pad thickness 0 mm (0.394 in.) Pad effective thickness 8 mm (0.35 in.) Cylinder I.D. 5. mm (.0 in.) Rear brake Leading trailing drum Drum I.D. 80 mm (7.09 in.) Brake lining thickness 4.6 mm (0.8 in.) Cylinder I.D mm (0.65 in.) Clearance adjustment Automatic Parking brake Mechanical brake acting on rear wheels Braking Lever type Cable arrangement V type

3 ANTI-LOCK BRAKE SYSTEM BR-3 ANTI-LOCK BRAKE SYSTEM EJTD5070 CIRCUIT DIAGRAM () FUSIBLE LINK 30A FUSIBLE LINK 30A ENGINE HOT IN OR START FUSE 3 DATA LINK CNECTOR I0 3.0L 3.0R 0.5Br/O MI0(LHD) MI0(RHD) 6 5 EM05(LHD) EM05(RHD) 0.5Br/O E0 Memory Power Memory Power Diagnosis / Start input CTROL MODULE Ground Wheel speed inputs E0 3.0B 3.0B 0.5W 0.5Br 0.5G 0.5L 0.5R 0.5Y 0.5B EM05(LHD) EM05(RHD) 0.5L 0.5R 0.5Y 0.5B E09 E36 M35 M7 3.0B G05 LEFT FRT RIGHT FRT LEFT REAR RIGHT REAR EJTD507A

4 BR-4 BRAKE SYSTEM CIRCUIT DIAGRAM () FUSE 0 HOT IN OR START FUSE 6 See Dash Fuse Details 8 MI0(LHD) MI0(RHD) I7-(A/T) 9 I04-(M/T) BRAKE WARNING INSTRUMENT CLUSTER 0.85G M4 M4 STOP LAMP SWITCH See Indicators & Gauges Y/B 5 4 (! )( P ) BRAKE 5 M0 EBD RELAY 0.5Y/B I04-(M/T) I7-(A/T) MI0(LHD) MI0(RHD) 5 M06 RELAY See Stop Lamps 3 4 M0 0.5B 0.5B 4 3 M B 0.85B See Ground Distribution 0.5G 0.5W/B G0 4 EM05(LHD) EM05(RHD) 0.5B 8 6 E0 Stop lamp switch signal input EBD Relay control Relay Control CTROL MODULE EJTD507B

5 SYSTEM FUNCTI BR -5 SYSTEM FUNCTI EJTD5060 OPERATI. NORMAL BRAKING IN (NO) OFF OPEN Master cylinder Wheel cylinder OFF Under the normal braking, voltage is not supplied to solenoid valve, inlet valve is opened and outlet valve is closed. When the brake is depressed, brake fluid is supplied to the wheel cylinder via solenoid valve to activate the brake. When the brake is released, brake fluid is back to the master cylinder via inlet valve and check valve.. DUMP MODE IN (NO) CLOSE Master cylinder ˇ Wheel cylinder OUT (NC) OPEN Wheel cylinder ˇ Reservoir Under the emergency braking, if the wheels start to lock up, HECU sends a signal to the solenoid valve to decrease the brakefluid, then voltage is supplied to each solenoid. At this time inlet valve is closed and brake fluid is blocked from the master cylinder. Conversely outlet valve is opened and brake fluid passes through wheel cylinder to reservoir, resulting in pressure decrease. 3. HOLD MODE IN (NO) CLOSE Master cylinder ˇ Wheel cylinder When the brake fluid pressure is maximally decreased in wheel cylinder, HECU sends a signal to solenoid valve to keep the fluidpressure, voltage is supplied to inlet valve but it is not supplied to outlet valve. At this time inlet and outlet valves are closed and brake fluid is kept in wheel cylinder. 4. INCREASE MODE IN (NO) OFF OPEN Master cylinder ˇ Wheel cylinder If HECU det ermines there s no lock-up in the wheel, HECU cuts voltage to solenoid valve. So voltage is not supplied to each solenoid valve, brake fluid passes through the inlet valve to wheel cylinder, resulting in pressure increase. Note: Please refer to the related "Shop Manual" published earlier for full section details.

SERVICE BRAKES GROUP 35A 35A-1 CONTENTS GENERAL DESCRIPTION... 35A-2 FRONT DISC BRAKE... 35A-5 MASTER CYLINDER... 35A-4 REAR DISC BRAKE...

SERVICE BRAKES GROUP 35A 35A-1 CONTENTS GENERAL DESCRIPTION... 35A-2 FRONT DISC BRAKE... 35A-5 MASTER CYLINDER... 35A-4 REAR DISC BRAKE... 35A-1 GROUP 35A CONTENTS GENERAL DESCRIPTION......... 35A-2 MASTER CYLINDER............. 35A-4 FRONT DISC BRAKE............. 35A-5 REAR DISC BRAKE.............. 35A-6 BRAKE BOOSTER ASSEMBLY.... 35A-4 35A-2