Yamaha YZF-R1, Service Manual

Page: 580 / 808

C1003
9-83
5. Malfunction in stepping motor.
a. Connect the digital circuit tester (
Ω
) to the stepping motor.
• Positive tester probe “1”
• Negative tester probe “2”
Between rear shock absorber assembly stepping
motor (compression damping) “4” and power ground
“2”
white–black
white/black–black
white/red–black
white/green–black
Between rear shock absorber assembly stepping
motor (rebound damping) “5” and power ground “2”
yellow–black
yellow/black–black
yellow/red–black
yellow/green–black
Between front fork stepping motor (left) “1” and pow-
er battery “6”
green–brown/white
green/black–brown/white
green/red–brown/white
green/blue–brown/white
Between front fork stepping motor (right) “3” and
power battery “6”
pink–brown/white
pink/black–brown/white
pink/white–brown/white
pink/blue–brown/white
Between rear shock absorber assembly stepping
motor (compression damping) “4” and power battery
“6”
white–brown/white
white/black–brown/white
white/red–brown/white
white/green–brown/white
Between rear shock absorber assembly stepping
motor (rebound damping) “5” and power battery “6”
yellow–brown/white
yellow/black–brown/white
yellow/red–brown/white
yellow/green–brown/white
Is resistance
∞ Ω
?
YES
→
Go to step 5.
NO
a. 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 5.
Br/W Y G/R P/W
B Gy Gy/G Y/R G P
Gy/R Gy/B Y/G G/B P/L L/B
W/G W/B W/R W Y/B G/L P/B L/W
6 5 1 3 2
4