9-146
P0657
Lines short circuit check “B”
4. Defective fuel injection system relay.
• Execute the diagnostic mode. (Code D50)
• Check the operating sound of the relay.
Fuel injection system relay coupler “2”
red–any other coupler terminal
red/blue–any other coupler terminal
red/black–any other coupler terminal
blue/yellow–any other coupler terminal
Handlebar switch coupler (right) “4”
red/white–any other coupler terminal
red/black–any other coupler terminal
ECU coupler “5”
red/blue–any other coupler terminal
blue/yellow–any other coupler terminal
Is resistance ?
YES
Go to step 4.
NO
a. Replace the wire harness.
b. Start the engine and let it idle for approximately 5 seconds.
c. Check the condition of the DTC using the malfunction mode of the YDT.
Is it in the “Recovered” condition?
YES
Go to step 7, and complete the service.
NO
Go to step 4.
Is check result OK?
YES
Go to step 5.
NO
a. Replace the fuel injection system relay.
b. Start the engine and let it idle for approximately 5 seconds.
c. Check the condition of the DTC using the malfunction mode of the YDT.
O
B/GY/R
B
R/BG/B
Y/W
B
Y/RR/L
BB
R/LL/Y
Y/W
R
R
R/L
R/B
L/Y
Br/Y R/W
Br/W
R/B
R
R/L
R/B
L/Y
Br/Y R/W
Br/W
R/B
5
2
2
4
4
A B