Yamaha XVS1300A 2007 - Page 375

FUEL INJECTION SYSTEM
8-64
Fault code No. Er-3 Symptom Data from the ECU cannot be received correctly.
Diagnostic code No. ——
Order Item/components and probable
cause
Check or maintenance job Reinstatement
method
1 Connections
• Wire harness ECU coupler
• Meter assembly coupler
• Check the coupler for any pins
that may be pulled out.
• Check the locking condition of
the coupler.
• If there is a malfunction, repair it
and connect the coupler se-
curely.
Turning the
main switch to
“ON”.
2 Open or short circuit in wire harness. • Repair or replace if there is an
open or short circuit between
meter assembly coupler and
ECU coupler.
(yellow/blue–yellow/blue)
3 Malfunction in meter assembly. Replace the meter assembly.
4 Malfunction in ECU. Replace the ECU.
Fault code No. Er-4 Symptom Non-registered data has been received from the meter.
Diagnostic code No. ——
Order Item/components and probable
cause
Check or maintenance job Reinstatement
method
1 Connections
• Wire harness ECU coupler
• Meter assembly coupler
• Check the coupler for any pins
that may be pulled out.
• Check the locking condition of
the coupler.
• If there is a malfunction, repair it
and connect the coupler se-
curely.
Turning the
main switch to
“ON”.
2 Open or short circuit in wire harness. • Repair or replace if there is an
open or short circuit between
meter assembly coupler and
ECU coupler.
(yellow/blue–yellow/blue)
3 Malfunction in meter assembly. Replace the meter assembly.
4 Malfunction in ECU. Replace the ECU.
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