Yamaha TMAX 2020 Service Manual

4-71ABS (Anti-lock Brake System)9. Check:• Hydraulic unit operationClick “Actuator Check”, a single pulse will begenerated in the front brake lever “1”, rearbrake lever “2”, and again in the front brakelever “1”, in this order.TIP“ON” and “OFF” on the tool screen indicatewhen the brakes are being applied and releasedrespectively.NOTICEECA22080• Check that the pulse is felt in the frontbrake lever, rear brake lever, and again inthe front brake lever, in this order.• If the pulse is felt in the rear brake lever be-fore it is felt in the front brake lever, checkthat the brake hoses and brake pipes areconnected correctly to the hydraulic unitassembly.• If the pulse is hardly felt in either the frontbrake lever or rear brake lever, check thatthe brake hoses and brake pipes are con-nected correctly to the hydraulic unit as-sembly.10.If the operation of the hydraulic unit is normal,delete all of the DTC.ABS reaction-force confirmationWARNINGEWA13120Securely support the vehicle so that there isno danger of it falling over.TIP• For the ABS reaction-force confirmation, usethe diagnosis of function of the YDT. For moreinformation, refer to the operation manual ofthe YDT.• Before performing the ABS reaction-force con-firmation, make sure that no malfunctions havebeen detected in the ABS ECU and that thewheels are not rotating.1. Place the vehicle on a centerstand.2. Push the OFF/LOCK switch.3. Remove:• Battery coverRefer to “GENERAL CHASSIS (1)” onpage 4-1.4. Check:• Battery voltageLower than 12.8 V  Charge or replace thebattery.TIPIf the battery voltage is lower than 12.8 V, chargethe battery, and then perform ABS reaction-force confirmation.5. Removing the protective cap, and then con-nect the YDT to the YDT coupler.Refer to “YDT” on page 9-3.TIP• Yamaha diagnostic tool (A/I) (90890-03264) in-cludes YDT sub harness (6P) (90890-03266).• If you already have Yamaha diagnostic tool (A/I) (90890-03262), YDT sub harness (6P)(90890-03266) is separately required.6. Start the YDT and display the diagnosis offunction screen.7. Select code No. 1, “ABS reaction-force con-firmation”.12G08891012G088912Battery voltageHigher than 12.8 VYamaha diagnostic tool USB90890-03267Yamaha diagnostic tool (A/I)90890-03264