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Lines short circuit check "B"
Fuel injection system relay coupler "2"
Handlebar switch coupler (right) "4"
ECU coupler "5"
A
2
R
R/L
R/B
L/Y
4
Br/Y R/W
Br/W R/B
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.
4. Defective fuel injection system relay.
• Execute the diagnostic mode. (Code D50)
• Check the operating sound of the relay.
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.
red–any other coupler terminal
red/blue–any other coupler terminal
red/black–any other coupler terminal
blue/yellow–any other coupler terminal
red/white–any other coupler terminal
red/black–any other coupler terminal
red/blue–any other coupler terminal
blue/yellow–any other coupler terminal
B
2
R
R/L
R/B
L/Y
4
Br/Y R/W
Br/W R/B
9-146
P0657
5
Y/R
B/G
O
Y/W
G/B
R/B
B
R/L
Y/R
B
R
Y/W
L/Y
R/L
B
B
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Troubleshooting
