Hydraulic Unit Operation Tests - Yamaha FJR 1300 AE 2014 Service Manual

ECA13540
NOTICE
Brake fluid may damage painted surfaces
and plastic parts. Therefore, always clean up
any spilt brake fluid immediately.
14.Bleed:
• Brake system
Refer to "BLEEDING THE HYDRAULIC
BRAKE SYSTEM (ABS)" on page 3-15.
15.Check the operation of the hydraulic unit ac-
cording to the brake lever and the brake ped-
al response. (Refer to "HYDRAULIC UNIT
OPERATION TESTS" on page 4-70.)
ECA14770
NOTICE
Always check the operation of the hydraulic
unit according to the brake lever and the
brake pedal response.
16.Delete the fault codes. (Refer to "[C-1] DE-
LETING THE FAULT CODES" on page
8-162.)
17.Perform a trial run. (Refer to "CHECKING
THE ABS WARNING LIGHT" on page 4-73.)
EAS22800

HYDRAULIC UNIT OPERATION TESTS

The reaction-force pulsating action generated in
the brake lever and brake pedal when the ABS
is activated can be tested when the vehicle is
stopped.
The hydraulic unit operation can be tested using
the following two methods.
• Hydraulic unit operation test 1: this test checks
the function of the ABS after the system was
disassembled, adjusted, or serviced.
• Hydraulic unit operation test 2: this test gener-
ates the same reaction-force pulsating action
that is generated in the brake lever and brake
pedal when the ABS is activated.
Hydraulic unit operation test 1
EWA13120
WARNING
Securely support the vehicle so that there is
no danger of it falling over.
TIP
Two people are necessary to perform hydraulic
unit operation test 1.
ABS (ANTI-LOCK BRAKE SYSTEM)
1. Place the vehicle on the centerstand.
2. Turn the main switch to "OFF".
3. Remove:
• Right upper inner panel
Refer to "GENERAL CHASSIS" on page 4-1.
4. Check:
• Battery voltage
Lower than 12.8 V → Charge or replace the
battery.
Battery voltage
Higher than 12.8 V
TIP
• If the battery voltage is lower than 12.8 V,
charge the battery, and then perform hydraulic
unit operation test 1.
• If the battery voltage is lower than 10 V, the
ABS warning light comes on and the ABS does
not operate.
5. Connect the test coupler adapter "1" to the
ABS test coupler "2".
Test coupler adapter
90890-03149
4-70
2
1