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ON-VEHICLE SERVICE TSB Revision BASIC BRAKE SYSTEM 35A-16 PROPORTIONING VALVE FUNCTION TEST M1351001100346 CAUTION The proportioning valves are installed independently for master cylinder and output port of the proportioning valve. 2. Bleed the brake line and the pressure gauges (Refer to 3. Depress the brake pedal gradually. Then check that the split point, where the output fluid pressure begins to drop in Standard value: 3.68 − 4.17 MPa (534 − 605 psi) 4. Depress the brake pedal more strongly than at the above step. Then check that the output fluid pressure is at the Standard value: 5.24 − 5.74 MPa (760 − 833 psi) 5. Measure each output fluid pressure at both valves, and check that the difference between the two is at the limit Limit: 0.5 MPa (73 psi) 6. If the measured pressure exceeds the limit, replace the proportioning valve. BLEEDING M1351001400455 CAUTION Use only brake fluid DOT 3 or DOT 4. Never mix the speci- . MASTER CYLINDER BLEEDING The master cylinder used has no check valve, so if bleeding is AC006221AD PROPORTIONING OUTPUT PORT PRESSURE GAUGE (A) PRESSURE GAUGE (B) OUTPUT PORT AC006222 AB SPLIT POINT INPUT PRESSURE OUTPUT |