Abs Self-Diagnosis By The Ecu (Abs); Basic Troubleshooting Instructions - Yamaha 2003 FJR1300 Service Manual

ANTI-LOCK BRAKE SYSTEM (FJR1300A)

ABS self-diagnosis by the ECU (ABS)

The ECU (ABS) performs a static check on the ABS when the main switch is set to "ON". The
ECU (ABS) also monitors the ABS while riding the motorcycle and checks for malfunctions. If
malfunctions occur, the malfunction codes are stored in the memory of the ECU (ABS). The mal-
function codes can be recalled from the memory using the ABS self-diagnostic function of the
ECU (ABS) and a pocket tester or the multifunction display.
3. Handling and service
CAUTION:
Handling the ABS components with care since they have been accurately adjusted. Keep them
away from dirt and do not subject them to shocks.
• The ECU (ABS), hydraulic unit, wheel sensors, and fail-safe relay cannot be disassembled.
• Always delete the malfunction codes stored in the memory of the ECU (ABS) after service has
been completed.
EAS00885

Basic troubleshooting instructions

WARNING
_
• Perform the troubleshooting [A] → [B] → [C] → [D] in order. The malfunction will not be
diagnosed correctly if the troubleshooting is performed in the wrong order or if the steps
are omitted.
• Make sure that the battery has been sufficiently charged before troubleshooting.
[A] ABS malfunction check using the ABS warning light
[B] Detailed ABS malfunction check
The results of the self-diagnosis by the ECU (ABS) are displayed using the multifunction display
or a pocket tester.
[C] Determining the cause and location of the malfunction
Determine the cause of the malfunction from the condition and place where the malfunction
occurred.
[D] ABS maintenance
Execute the final check after disassembly and reassembly.
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CHAS