90_Abs; Troubleshooting - Yamaha XSR 900 2022 Service Manual

EAS20670

90_ABS

EAS33300

TROUBLESHOOTING

Item
CAN communication (between ECU and hydraulic unit assembly (ABS ECU))
Procedure
1. Defective coupler between the ECU and the hydraulic unit assembly (ABS ECU)
• Check the coupler for any pins that may be pulled out.
• Check the locking condition of the coupler.
TIP
Turn the main switch to "OFF" before disconnecting or connecting a coupler.
Is check result OK?
YES
→ Go to step 2.
NO
→ If there is a malfunction, repair it and connect the coupler securely.
2. Wire harness continuity.
• Disconnect the ECU coupler "1" and ABS ECU coupler "5".
• Remove the joint coupler cap "2", joint coupler cap "3" and joint coupler cap "4".
• Open circuit check
Between ECM coupler "1" and joint coupler "3"
Between ECM coupler "1" and joint coupler "4"
Between joint coupler "2" and joint coupler "3"
Between joint coupler "2" and joint coupler "4"
Between joint coupler "2" and ABS ECU coupler
"5"
2
L/W W L/W W
B B/L B B B B B
4
B B L/B L/B Y/B Y/B
B/L L/R L/R L/R L/R
3
Y/B L/B L/B
W L/W L/W
blue/black–blue/black
blue/white–blue/white
yellow/black–yellow/black
white–white
blue/black–blue/black
blue/white–blue/white
5
1
L/B
L/W
9-309
W/G G Y L R/B Br L/W
L/W B/W
R B
G/O W/Y L B W Y L/B
Y/L O/W Lg/L P/W P V L L
B/Y Br/L G/L Gy/G Br/W B/L B/L
L/Y L/W Lg/B G/W G/W W/G
90_ABS
Gy
W/Y