[C-3] The Abs Warning Light Remains On; [C-4] The Abs Warning Light Flashes - Yamaha VMAX 2009 Service Manual

• 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 8-133.
• If the main fuse is blown, replace the fuse.
4. Circuit
• Check the meter assembly 1 circuit.
Refer to "CIRCUIT DIAGRAM" on page 8-81.
• If the meter assembly 1 circuit is open, properly repair or replace the wire harness.
EAS2S31072

[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 8-134.
• 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 8-133.
• If the ABS ECU fuse is blown, replace the fuse.
3. ABS ECU coupler
• Check that the ABS ECU coupler is 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 terminal of the main switch coupler and brown terminal of
the ABS ECU fuse.
• Check for continuity between the red/blue terminal of the ABS ECU fuse and the red/blue 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 between the ABS ECU and the meter assembly 1 (ABS warning
light).
• Check for continuity between the green/red terminal of the ABS ECU coupler and the green/black
terminal of the meter assembly 1 coupler.
• If there is no continuity, the wire harness is defective. Properly repair or replace the defective har-
ness.
6. The meter assembly 1 circuit is defective.
• Disconnect the ABS ECU coupler.
• The green/red terminal of the ABS ECU coupler is short-circuited to the ground.
• Turn the main switch to "ON", and then check the ABS warning light.
• If the ABS warning light is on, the internal circuit of the meter assembly 1 is defective. Replace the
meter assembly 1.
• If the ABS warning light does not come on, the ABS ECU is defective. Replace the hydraulic unit
assembly.
7. The hydraulic unit assembly is defective.
EAS2S31073

[C-4] THE ABS WARNING LIGHT FLASHES

1. Check whether the T/C terminal (green/yellow) of the ABS test coupler is short-circuited to the
ground when the test coupler adapter is removed.
• If the T/C terminal is short-circuited to the ground, the wire harness is defective. Properly repair or
replace the wire harness.
ABS (ANTI-LOCK BRAKE SYSTEM)
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