Yamaha YZF-R1 Series Service Manual page 578

• Disconnect the coupler and check the pins (bent or broken terminals and locking condition of the
pins).
Is the coupler condition normal?
YES
→ Go to step 4.
NO
a. Connect the coupler securely or replace the wire harness and/or sub-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
→ Service is completed.
NO
→ Go to step 4.
4. Wire harness continuity.
• Open circuit check
Between SCU coupler "1" and front fork stepping
motor (left) "2"
Between SCU coupler "1" and front fork stepping
motor (right) "2"
Between SCU coupler "1" and rear shock absorber
assembly stepping motor (compression damping)
"2"
green–green
green/black–green/black
green/red–green/red
green/blue–green/blue
1
pink–pink
pink/black–pink/black
pink/white–pink/white
pink/blue–pink/blue
1
white–white
white/black–white/black
white/red–white/red
white/green–white/green
9-81
2
2
C1003