Yamaha YZF-R1 Series Service Manual page 783

Lines short circuit check "B"
ABS ECU coupler
A
1
Gy/B L Y G R/B B L/W
L/W
R/W
G/O W/L L B W W L/B
Is resistance ∞ Ω?
YES
→ Go to step 4.
NO
→ Replace the wire harness.
4. Defective charging system
• Check the charging system.
Refer to "CHARGING SYSTEM" on page 8-12.
Is check result OK?
YES
→ Replace the hydraulic unit assembly (ABS ECU).
NO
→ Confirm the cause of the problem and repair it, and check again.
red/black–any other coupler terminal
B
B/W
B
9-286
1
Gy/B L Y G R/B B L/W
L/W B/W
R/W B
G/O W/L L B W W L/B
53_ABS