Yamaha YZF-R1 Series Service Manual page 677

1
Br/W L/W R/W L R/L
L/R L/W R/W L/B L/Y Sb B/Y Sb/W
Is resistance 0 Ω?
YES
→ Go to "Short circuit check".
NO
a. Replace the wire harness.
b. Execute the diagnostic mode. (Code D21)
When the clutch lever is released with the transmission in gear and when the
sidestand is retracted
When the clutch lever is squeezed with the transmission in gear and when the
sidestand is retracted
Is it correct indication?
YES
→ Go to step 21.
NO
→ Go to "Short circuit check".
• Short circuit check
TIP
Disconnect the ECU related connectors before checking.
Refer to "PARTS CONNECTED TO THE ECU" on page 9-3.
Ground short circuit check "A"
Between relay unit coupler "1" and ground
Lines short circuit check "B"
Relay unit coupler
ECU coupler "2"
Clutch switch coupler "3"
2
3
L/B
B/Y L/Y
L/W
L/W B/W
black/yellow–ground
blue/yellow–ground
black/yellow–any other coupler terminal
blue/yellow–any other coupler terminal
black/yellow–any other coupler terminal
black/yellow–any other coupler terminal
blue/yellow–any other coupler terminal
9-180
P0500 (FI), P1500
P/W P V L L/R Gy
B/Y Gy/G Br/W B/L W W/B
L/Y L/W Gy/Y G/W G Gy/B W/L
OFF
ON