Yamaha XSR 900 2022 Service Manual page 618

Is resistance 0 Ω?
YES
→ Go to "Short circuit check".
NO
a. Replace the wire harness.
b. Start the engine and let it idle for approximately 5 seconds.
c. Check the DTC using the malfunction mode of the YDT.
Is it in the "Recovered" condition?
YES
→ Go to step 8, and complete the service.
NO
→ Go to "Short circuit check".
• 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 relay unit coupler "2" and ground
Between handlebar switch coupler (right) "4"
and ground
Lines short circuit check "B"
Relay unit coupler "2"
Handlebar switch coupler (right) "4"
ECU coupler "5"
A
2
Br W
W L/W R L/B L
4
4
W/B W/G B/W
R/W B W
B
R L/W R
Sb B Sb/W
R/W L/W
brown–ground
blue/white–ground
red–ground
red/white–ground
red/white–ground
brown–any other coupler terminal
blue/white–any other coupler terminal
red–any other coupler terminal
red/white–any other coupler terminal
red/white–any other coupler terminal
red/blue–any other coupler terminal
blue/white–any other coupler terminal
2
Br W R L/W R
W L/W R L/B L Sb B Sb/W
4 4
W/B W/G B/W
R/W L/W
R/W B W
9-212
P0657
5
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