Yamaha YZF-R1 Series Service Manual page 724

a. Replace the wire harness.
b. Execute the diagnostic mode. (Code D16)
c. Rotate the front wheel by hand and check that the indicated value increases.
Is that value increased?
YES
→ Go to step 10, and complete the service.
NO
→ Go to "Short circuit check".
• Short circuit check
TIP
Disconnect the ECU and ABS ECU related connectors before checking.
Refer to "PARTS CONNECTED TO THE ECU" on page 9-3 and "PARTS CONNECTED TO THE ABS
ECU" on page 9-4.
Ground short circuit check "A"
Between ABS ECU coupler "2" and ground
Lines short circuit check "B"
Front wheel sensor coupler "1"
ABS ECU coupler
ECU coupler "3"
A
2
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
B/W
B
9-227
black–ground
white–ground
gray/black–ground
black–any other coupler terminal
white–any other coupler terminal
black–any other coupler terminal
white–any other coupler terminal
gray/black–any other coupler terminal
gray/black–any other coupler terminal
B
1
B W
2
Gy/B L Y G R/B B L/W
L/W
R/W
G/O W/L L B W W L/B
3
L/B P/W P
L/W B/Y Gy/G
L/Y L/W Gy/Y
P2158 (FI)
B/W
B
V L L/R Gy
Br/W B/L W W/B
G/W G Gy/B W/L