Yamaha RX10RTL Supplemental Service Manual page 163

Fault code No. 44
Used diagnostic No. 60 (EEP-ROM improper cylinder indication)
Order Inspection operation item and probable
cause
1 Malfunction in ECU
Fault code No. 46
Used diagnostic code No. – –
Order Inspection operation item and probable
cause
1 Connected condition of connector
Inspect the coupler for any pins that
may have pulled out.
Check the locking condition of the
coupler.
2 Faulty battery
3 The malfunction of the rectifier/regulator. Replace if defective.
4 Open or short circuit in wiring harness.
Fault code No. 50
Used diagnostic code No. – –
Order Inspection operation item and probable
cause
1 Malfunction in ECU
Fault code No. 80
Used diagnostic code No. – –
Order Inspection operation item and probable
cause
1 Short circuit in wiring harness.
FUEL INJECTION SYSTEM
Symptom Error is detected while reading or writing on EEP-ROM (CO adjustment value).
Operation item and countermeasure
Execute diagnostic code 60
1. Check the faulty cylinder. (If there are multiple
cylinders, the number of the faulty cylinders
appear alternately at 2-second intervals.)
2. Readjust the CO of the displayed cylinder.
Replace ECU if defective.
Symptom Power supply to the Fuel injection system relay is not normal.
Operation item and countermeasure
If there is a malfunction, repair it and connect it
securely.
ECU coupler.
Replace or change the battery
Refer to "BATTERY INSPECTION" in chapter 2.
Refer to "CHARGING SYSTEM" in chapter 8.
Repair or replace if there is an open or short circuit.
• Between battery and fuse (ignition)
Red – Red
• Between fuse (ignition) and main switch
Red/Yellow – Red/Yellow
• Between main switch and load relay
Brown – Brown
• Between load relay and ECU
Brown/Blue – Brown/Blue
Faulty ECU memory. (When this malfunction is detected in the ECU, the fault
Symptom
code number might not appear on the meter.)
Operation item and countermeasure
Replace the ECU.
Symptom Grip warmer switch-short circuit detected.
Operation item and countermeasure
Repair or replace if there is an short circuit.
Between switch coupler and switch coupler
Orange/White – Chocolate
Orange/Blue – Chocolate
82
FI
Reinstatement
method
Reinstated by
turning the main
switch ON.
Reinstatement
method
Reinstated by
starting the
engine and
operating it at
idle.
Reinstatement
method
Reinstated by
turning the main
switch ON.
Reinstatement
method
Reinstated by
turning the main
switch ON.