Yamaha YZF-R1 Series Service Manual page 751

Lines short circuit check "B"
ECU coupler
Joint coupler "2"
IMU coupler
A
1
L/B P/W P
L/W B/Y Gy/G
L/Y L/W
3
*. Joint coupler for YZF-R1
**. Joint coupler for YZF-R1M
Is resistance ∞ Ω?
YES
→ Go to step 4.
NO
a. Replace the wire harness.
b. Turn the main switch to "OFF" and back to "ON", and then check the condition of the DTC using the
malfunction mode of the YDT.
Is it in the "Recovered" condition?
YES
→ Go to step 6, and complete the service.
NO
→ Go to step 4.
4. Malfunction in IMU.
• Replace the IMU.
Refer to "GENERAL CHASSIS (1)" on page 4-1.
• Turn the main switch to "OFF" and back to "ON", and then check the condition of the DTC using the
malfunction mode of the YDT.
B
V L L/R Gy
Br/W B/L W W/B
Gy/Y G/W G Gy/B W/L
9-254
blue/white–any other coupler terminal
blue/black–any other coupler terminal
blue/white–any other coupler terminal
blue/black–any other coupler terminal
blue/white–any other coupler terminal
blue/black–any other coupler terminal
red/white–any other coupler terminal
1
L/B P/W P V L
L/W B/Y Gy/G Br/W B/L
L/Y L/W Gy/Y G/W G
3
2
*
L/W L/W L/W L/W L/W L/W L/B L/B L/B L/B L/B L/B
**
L/W L/W L/W L/W L/W L/W L/W
L/B L/B L/B L/B L/B L/B L/B
U0125 (FI)
L/R Gy
W W/B
Gy/B W/L