Yamaha FJR13AEV(C) Service Manual page 604

• Positive tester probe →
terminals "1", "2", "3", "4", "5", and "6"
• Negative tester probe →
negative battery terminal
b. Check the solenoid valve insulation.
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3. Check:
• ABS motor continuity
No continuity → Replace the hydraulic unit.
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a. Connect the pocket tester (Ω × 1) to the ABS
motor coupler as shown.
EAS27790
ABS TROUBLESHOOTING OUTLINE
This section describes the troubleshooting for the ABS in detail. Read this service manual carefully and
make sure you fully understand the information provided before repairing any malfunctions or perform-
ing service.
The ABS ECU (electronic control unit) has a self-diagnosis function. When failures occur in the system,
the ABS warning light on the meter assembly indicates a malfunction.
The following troubleshooting describes the problem identification and service method according to the
indications by the multi-function display. For troubleshooting items other than the following items, follow
the normal service method.
EW3P61011
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. (Refer to "[D-3] FINAL
CHECK" on page 8-157.)
ABS operation when the ABS warning light comes on
1. The ABS warning light remains on → ABS operates as a normal brake system.
• A malfunction was detected using the ABS self-diagnosis function.
2. The ABS warning light comes on, and then goes off when starting the engine → ABS operation is
normal.
• The ABS warning light comes on for 2 seconds, and then goes off every time the main switch is
turned to "ON".
• The ABS warning light comes on while the start switch is being pushed.
3. The ABS warning light flashes → ABS operation is normal.
• The front or rear brake light switch is defective or improperly adjusted.
• The rear wheel is racing.
• The vehicle is continuously ridden on extremely uneven roads.
ABS (ANTI-LOCK BRAKE SYSTEM)
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8-133
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
terminal "1"
• Negative tester probe →
terminal "2"
b. Check the ABS motor for continuity.
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