Yamaha FJR13AG Service Manual page 675

EWA16710
WARNING
When maintenance or checks have been performed on components related to the ABS, be sure
to perform a final check before delivering the vehicle to the customer.
TIP
To final check, refer to "[C-3] FINAL CHECK" on page 8-220.
EAS30531
[A] CHECKING THE ABS WARNING LIGHT
Turn the main switch to "ON". (Do not start the engine.)
1. The ABS warning light does not come on. [A-1]
2. The ABS warning light flashes. [A-2]
3. The ABS warning light remains on. [A-3]
EAS30532
[A-1] ONLY THE ABS WARNING LIGHT FAILS TO COME ON
1. Check for a short circuit to the ground between the green/red terminal of the ABS ECU coupler and
green/red terminal of the meter assembly.
• If there is a short circuit to the ground, the wire harness is defective. Replace the wire harness.
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.
EAS32021
[A-2] THE ABS WARNING LIGHT FLASHES
1. Test coupler adapter confirmation
• Check if the test coupler adapter is connected to the ABS test coupler.
• If the test coupler adapter is connected, disconnect it, and then install the protective cap onto the
ABS test coupler.
2. If the test coupler adapter is not connected
• Check that the T/C terminal (sky blue) of the ABS test coupler is not short-circuited to the ground.
• If the T/C terminal is short-circuited to the ground, the wire harness is defective. Replace the wire
harness.
• If the T/C terminal is not short-circuited to the ground, check the internal circuit of the meter assem-
bly.
Turn the main switch to "OFF".
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 is flashes, the internal circuit of the meter assembly is defective. Replace
the meter assembly.
If the ABS warning light is on, the ABS ECU is defective. Replace the hydraulic unit assembly.
EAS32022
[A-3] THE ABS WARNING LIGHT COME ON
Turn the main switch to "OFF".
Remove front cowling inner panel and right upper inner panel to access the ABS test coupler "1". Re-
move the protective cap from the ABS test coupler, and then connect the test coupler adapter "2" to the
coupler. The T/C terminal (sky blue) is now grounded.
Turn the main switch to "ON", and then check the multi-function meter right display.
ABS (ANTI-LOCK BRAKE SYSTEM)
8-198