Yamaha R1 Series 2015 Service Manual page 645

ELECTRONICALLY ADJUSTABLE SUSPENSION SYSTEM (for
Fault code No.
Item
2 Connection of SCU coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
3 Connection of front fork step-
ping motor sub-lead coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
4 Wire harness continuity.
93
Stepping motor: open or short circuit detected.
Improperly connected
nect the coupler securely or
replace the wire harness.
Improperly connected
nect the coupler securely or
replace the wire harness.
Open circuit
wire harness.
• Between SCU coupler and left
front fork stepping motor.
green–green
green/black–green/black
green/red–green/red
green/blue–green/blue
• Between SCU coupler and
right front fork stepping motor.
pink–pink
pink/black–pink/black
pink/white–pink/white
pink/blue–pink/blue
• Between SCU coupler and
rear shock absorber assembly
stepping motor (compression
damping).
white–white
white/black–white/black
white/red–white/red
white/green–white/green
• Between SCU coupler and
rear shock absorber assembly
stepping motor (rebound
damping).
yellow–yellow
yellow/black–yellow/black
yellow/red–yellow/red
yellow/green–yellow/green
Short-circuit
wire harness.
• Between left front fork step-
ping motor "1" and power
ground "2".
green–black
green/black–black
green/red–black
green/blue–black
• Between right front fork step-
ping motor "3" and power
ground "2".
pink–black
pink/black–black
pink/white–black
pink/blue–black
8-164
Con- Turn the main switch to "OFF"
and back to "ON".
Fault code number is not dis-
played
Fault code number is displayed
Go to item 3.
Con- Turn the main switch to "OFF"
and back to "ON".
Fault code number is not dis-
played
Fault code number is displayed
Go to item 4.
Replace the Turn the main switch to "OFF"
and back to "ON".
Fault code number is not dis-
played
Fault code number is displayed
Go to item 5.
Replace the
YZF-R1M)
Service is finished.
Service is finished.
Service is finished.