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BASIC BRAKE SYSTEM DIAGNOSIS TSB Revision BASIC BRAKE SYSTEM 35A-7 STEP 2. Check disc brake pistons for smooth 40 times with the ignition switch at the "LOCK" (2) Test each disc brake assembly one at a time. a. Remove the lower caliper bolt, then remove caliper from mount. b. Have an assistant slowly depress the brake pedal. Confirm piston(s) extend slowly and Q: Do (does) the piston(s) move correctly? YES : Go to Step 3. NO : Disassemble and inspect brake assembly /Rear: Refer to STEP 3. Check brake disc(s) for run-out. . Q: Is run-out outside of specifications? YES : Repair or replace as necessary. Then go to Step 5. NO : Go to Step 4. STEP 4. Check brake discs for correct thickness. . Q: Is the thickness outside of specifications? YES : Repair or replace as necessary. Then go to Step 5. NO : Go to Step 5. STEP 5. Retest the system. Q: Is the symptom eliminated? YES : The procedure is complete. NO : Start over at Step 1. If a new symptom INSPECTION PROCEDURE 2: Insufficient Braking Power DIAGNOSIS STEP 1. Check whether the brake fluid is low, is Q: Is there fault? YES : Refill or replace with the specified brake fluid DOT 3 or DOT 4. Bleed the brakes if ). Then go to Step 6. NO : Go to Step 2. STEP 2. Check for spongy (not firm brakes). 40 times with the ignition switch at the "LOCK" (2) With the brake pedal fully released, depress the brake pedal slowly until it stops. (3) With a measuring stick (ruler, etc.) next to the brake pedal, depress the pedal firmly and Q: Is the distance greater than 20 mm (0.8 inch)? YES : Bleed the brakes to remove air in the fluid (Refer to NO : Go to Step 3. STEP 3. Check the HBB function. . Q: Is the HBB malfunctioning? YES : ) and replace the faulty part as necessary. Then NO : Go to Step 4. STEP 4. Check for pinched or restricted brake Q: Is there a pinched or restricted brake tube or hose? YES : Replace that complete section of brake tube or brake hose. Then go to Step 6. NO : Go to Step 5. STEP 5. Check for oil, water, etc., on the pad Q: Is oil, water, etc., on the pad contact surface? YES : Replace the pads on both left and right wheels as a set and determine the NO : Go to Step 6. |