The Multi-Function Display Does Not Display The Fault Code; The Abs Warning Light Remains On - Yamaha 2012 TMAX XP500A Service Manual

EAS59C2805
[B-1] THE MULTI-FUNCTION DISPLAY DOES NOT DISPLAY THE FAULT CODE
1. A malfunction that keeps the ABS warning light on is detected. [B-2]
2. The ABS warning light flashes every 0.5 second for more than 6 seconds.
No malfunction is detected.
The ABS warning light flashes every 0.5 second if a fault code for a past malfunction is not
stored in the memory of the ABS ECU. The ABS warning light flashes quicker if a fault code is
displayed on the multi-function display. If no fault code is displayed, make sure that the customer
understands the possible conditions that may cause the ABS warning light to come on or flash
even if the system is normal.
TIP
• The ABS fault codes will not be displayed if a fault code for the fuel injection system is displayed
on the multi-function display. To display the ABS fault codes, delete the fuel injection system fault
codes, and then start the check again.
• The test coupler adapter must be connected to the ABS test coupler to display the fault codes. If
the adapter is not connected, the ABS warning light will come on or flash, but no fault codes will be
displayed.
EAS59C2806
[B-2] 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 8-127.
• 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 8-127.
• 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/Blue terminal of the main switch coupler and Brown/
Blue terminal 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 har-
ness.
• 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 har-
ness.
5. There is a break in the wire harness between the ABS ECU and the meter assembly (ABS warn-
ing light).
• Check for continuity between the White/Red terminal of the ABS ECU coupler and the White/
Red terminal of the meter assembly coupler.
• If there is no continuity, the wire harness is defective. Properly repair or replace the defective
harness.
ABS (ANTI-LOCK BRAKE SYSTEM)
8-96