Yamaha YZF-R1 Series Service Manual page 534

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
DTC
Abnormal CAN communication (between
"U0121"
ABS ECU and SCU)
Signals cannot be transmitted between the
"U0125 (FI)"
ECU and the IMU.
"U0125 Abnormal CAN communication (between
(SCU)" IMU and SCU)
Multi-function meter: signals cannot be
"U0155 or
transmitted between the ECU and the multi-
Err (FI)"
function meter.
"U0155 or Abnormal CAN communication (between
Err (SCU)" meter assembly and SCU)
Symptom
9-37
Fail-safe system
Starting the Driving the
engine vehicle
Able Able
Unable Able/Unable
Able Able
Able Able
Able Able
Diagnostic
code
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