Yamaha FJR1300AS(X) Service Manual page 625

2. Disconnect the ABS ECU coupler and check that the ABS warning light comes on when the main
switch is turned to "ON".
• If the ABS warning light does not come on, the meter assembly circuit (including the ABS warning
light [LED]) is defective. Replace the meter assembly.
• If the ABS warning light comes on, ABS ECU is defective. Replace the hydraulic unit assembly.
ET3P6D013
[C-2] ALL INDICATOR LIGHTS FAIL TO COME ON
1. Main switch
• Check the main switch for continuity.
Refer to "CHECKING THE SWITCHES" on page 8-233.
• If there is no continuity, replace the main switch/immobilizer unit.
2. Battery
• Check the condition of the battery.
Refer to "CHECKING AND CHARGING THE BATTERY" on page 8-240.
• If the battery is defective, clean the battery terminals and recharge it, or replace the battery.
3. Main fuse
• Check the fuse for continuity.
Refer to "CHECKING THE FUSES" on page 8-239.
• If the main fuse is blown, replace the fuse.
4. Circuit
• Check the meter assembly circuit.
Refer to "CIRCUIT DIAGRAM (1/2) (FJR1300A)" on page 8-129, "CIRCUIT DIAGRAM (2/2)
(FJR1300A)" on page 8-131, "CIRCUIT DIAGRAM (1/2) (FJR1300AS)" on page 8-133, and "CIR-
CUIT DIAGRAM (2/2) (FJR1300AS)" on page 8-135.
• If the meter assembly circuit is open, properly repair or replace the front cowling wire harness.
ET3P6D014
[C-3] THE ABS WARNING LIGHT REMAINS ON
1. The battery voltage is low.
• Check the condition of the battery.
Refer to "CHECKING AND CHARGING THE BATTERY" on page 8-240.
• If the battery voltage is low, clean the battery terminals and recharge it, or replace the battery.
2. ABS ECU fuse
• Check the ABS ECU fuse for continuity.
Refer to "CHECKING THE FUSES" on page 8-239.
• If the ABS ECU fuse is blown, replace the fuse.
3. ABS ECU coupler and front cowling wire harness coupler.
• Check that the ABS ECU coupler and front cowling wire harness coupler are connected properly.
• Connect the couplers properly if necessary.
4. There is a break in the wire harness between the main switch and the ABS ECU or between the ABS
ECU and the ground.
• Check for continuity between the brown/blue terminal of the main switch coupler and brown/blue ter-
minal of the ABS ECU fuse.
• Check for continuity between the brown/white terminal of the ABS ECU fuse and the brown/white
terminal of the ABS ECU coupler.
• If there is no continuity, the wire harness is defective. Properly repair or replace the wire harness.
• Check for continuity between the black/white terminal of the ABS ECU coupler and the ground.
• If there is no continuity, the wire harness is defective. Properly repair or replace the wire harness.
5. There is a break in the wire harness and front cowling wire harness between the ABS ECU and the
meter assembly (ABS warning light).
• Check for continuity between the green/red terminal of the ABS ECU coupler and the green/red ter-
minal of the meter assembly coupler.
ABS (ANTI-LOCK BRAKE SYSTEM)
8-148