Yamaha FJR13AG Service Manual page 711

ELECTRONICALLY ADJUSTABLE SUSPENSION SYSTEM
Fault code No.
Item
6 Malfunction in stepping motor.
7 Malfunction in SCU.
C1003
Stepping motor: open or short circuit detected.
Stepping motor operation con-
firmation steps:
a. Connect the pocket tester (Ω
× 10) to the stepping motor.
• Positive tester probe "1"
• Negative tester probe "2"
A
1 3
4
2
A. Stepping motor coupler
B. Connection wiring dia-
gram
b. Measure the resistance of
the stepping motor between
"1" and "2".
Specified resistance:
43–53 Ω (When the mo-
tor is cold at 20 °C
(68 °F))
Out of specification → Go to
step (e).
c. Connect the pocket tester (Ω
× 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: 43–53
Ω (When the motor is cold at
20 °C (68 °F))
Out of specification → Go to
step (e).
e. Stepping motor is defective
→ Replace.
Refer to "FRONT FORK
(FJR13ESG)" on page
4-105, "REAR SHOCK AB-
SORBER ASSEMBLY
(FJR13ESG)" on page
4-123.
Replace the SCU.
8-234
Turn the main switch to "ON",
and then check the condition of
the fault code using the mal-
function mode of the Yamaha
diagnostic tool.
Condition is "Recovered" →
Service is finished.
Condition is "Detected" → Go to
B
item 7.
1 3
2 4
Execute the diagnostic mode
(code No. 84). Service is fin-
ished.
(FJR13ESG)