Yamaha XSR 900 2022 Service Manual page 676

1
B R/G
Y/L Lg R
Is resistance 0 Ω?
YES
→ Go to "Short circuit check".
NO
→ Replace the wire harness.
• 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 immobilizer unit coupler "1" and
ground
Lines short circuit check "B"
Immobilizer unit coupler "1"
ECU coupler "2"
A
1
B R/G
Y/L Lg R
Is resistance ∞ Ω?
YES
→ Go to step 4.
NO
→ Replace the wire harness.
3
yellow/blue–ground
light green–any other coupler terminal
red/green–any other coupler terminal
red–any other coupler terminal
yellow/blue–any other coupler terminal
light green–any other coupler terminal
red/green–any other coupler terminal
red–any other coupler terminal
black–any other coupler terminal
yellow/blue–any other coupler terminal
B
1
B R/G
Y/L Lg R
9-270
53_IMMOBILIZER
2
L/B Y/L O/W Lg/L P/W P V
L/W B/Y Br/L G/L Gy/G Br/W
L/Y L/W Lg/B G/W G/W
2
L/B Y/L O/W Lg/L P/W P
L/W B/Y Br/L G/L Gy/G
L/Y L/W Lg/B
L L Gy
B/L B/L
W/G W/Y
V L L Gy
Br/W B/L B/L
G/W G/W W/G W/Y