Yamaha XSR 900 2022 Service Manual page 502

TIP
For this check, also set the stop/run/start switch to "ON".
• Short circuit check
TIP
Disconnect the ECU related connectors before checking.
Refer to "PARTS CONNECTED TO THE ECU" on page 9-4.
Ground short circuit check "A"
Between O sensor coupler "1" and ground
2
Lines short circuit check "B"
O sensor coupler "1"
2
ECU coupler "2"
A
1
R P/B
Gy/G B/L
Is resistance ∞ Ω?
YES
→ Go to step 4.
NO
a. Replace the wire harness.
b. Turn the main switch to "ON", and then check the DTC using the malfunction mode of the YDT.
Is it in the "Recovered" condition?
YES
→ Go to step 6, and complete the service.
NO
→ Start the engine, and then check the DTC.
Is it in the "Recovered" condition?
YES
→ Go to step 6, and complete the service.
NO
→ Go to step 4.
TIP
For this check, also set the stop/run/start switch to "ON".
4. Defective O sensor.
2
• Replace the O sensor.
2
Refer to "ENGINE REMOVAL" on page 5-9.
• Turn the main switch to "ON", and then check the DTC using the malfunction mode of the YDT.
red–ground
pink/black–ground
red–any other coupler terminal
pink/black–any other coupler terminal
pink/black–any other coupler terminal
B
1
R P/B
Gy/G B/L
9-96
P0030
2
Y/R P/B O/G Gy/R O
Lg/R L/B G/B R/B B
R/L G/Y B
R/G Y/R Y/B L/W R/L B/W B/W