Yamaha R6 2009 Service Manual page 393

Fault code No. Er-1 Symptom No signals are received from the ECU.
Diagnostic code No.
Item/components and probable
Order
cause
1 Connections
• Main wire harness ECU coupler
• Main wire harness meter assembly
coupler
2 Open or short circuit in wire harness.
3 Malfunction in meter assembly.
4 Malfunction in ECU.
Fault code No. Er-2 Symptom
Diagnostic code No.
Item/components and probable
Order
cause
1 Connections
• Main wire harness ECU coupler
• Main wire harness meter assembly
coupler
2 Open or short circuit in wire harness.
3 Malfunction in meter assembly.
4 Malfunction in ECU.
— —
Check or maintenance job
• Check the couplers for any pins
• Check the locking condition of
• If there is a malfunction, repair
• Repair or replace if there is an
• Between meter assembly cou-
Replace the meter assembly.
Replace the ECU.
No signals are received from the ECU within the speci-
fied duration.
— —
Check or maintenance job
• Check the couplers for any pins
• Check the locking condition of
• If there is a malfunction, repair
• Repair or replace if there is an
• Between meter assembly cou-
Replace the meter assembly.
Replace the ECU.
8-70
FUEL INJECTION SYSTEM
that may be pulled out.
the couplers.
it and connect the coupler
securely.
open or short circuit.
pler and ECU coupler.
(yellow/blue–yellow/blue)
that may be pulled out.
the couplers.
it and connect the coupler
securely.
open or short circuit.
pler and ECU coupler.
(yellow/blue–yellow/blue)
Reinstatement
method
Turning the
main switch to
"ON".
Reinstatement
method
Turning the
main switch to
"ON".