Yamaha R1 Series 2015 Service Manual page 643

ELECTRONICALLY ADJUSTABLE SUSPENSION SYSTEM (for
Fault code No.
Item
5 Malfunction in stepping motor.
6 Malfunction in SCU.
Fault code No. 89
Fault code No.
Item
Fail-safe system
66
Steering damper stepping motor (manufactured by Öhlins:
optional): open circuit or short-circuit detected.
Stepping motor confirmation
steps:
a. Connect the pocket tester (
10) to the stepping motor.
• Positive tester probe "1"
• Negative tester probe "2"
A
1 2 3 4
A. Stepping motor coupler
B. Connection wiring diagram
b. Measure the resistance of
the stepping motor between
"1" and "2".
Specified resistance: 14.8–
18.2 (When the motor is
cold at 20 C (68 F))
Out of specification
step (e).
c. Connect the pocket tester (
10) to the stepping motor.
• Positive tester probe "3"
• Negative tester probe "4"
d. Measure the resistance of
the stepping motor between
"3" and "4".
Specified resistance: 14.8–
18.2 (When the motor is
cold at 20 C (68 F))
Out of specification
step (e).
e. Stepping motor is defective
Replace.
Replace the SCU.
89 (or "Err" is displayed)
Abnormal CAN communication (between meter assembly and SCU)
Able to start engine
Able to drive vehicle
8-162
Turn the main switch to "ON".
Fault code number is not dis-
played
Fault code number is displayed
Go to item 6.
B
1 3
2 4
Go to
Go to
Turn the main switch to "OFF"
and back to "ON" and check the
warning light.
The warning light does not
come on
The warning light comes on
Refer to the item corresponding
to the fault code.
YZF-R1M)
Service is finished.
Service is finished.