Yamaha MT-09SP 2021 - Page 697

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53_IMMOBILIZER
• Short circuit check
TIP
Disconnect the ECU related connectors before checking.
Refer to “HANDLEBAR” on page 4-57.
Ground short circuit check “A”
Lines short circuit check “B”
2
*
2
**
Gy LLVP
P/WY/LL/B
B/LB/LBr/WGy/GB/YL/W
W/YW/GG/WG/WL/WL/Y
Gy LLVP
P/WLg/LO/WY/LL/B
B/LB/LBr/WGy/GG/LBr/LB/YL/W
W/YW/GG/WG/WLg/BL/WL/Y
R/G
Y/L
Lg
B
R
1
3
*. MTN890
**. MTN890D
Is resistance 0 Ω?
YES
→ Go to “Short circuit check”.
NO
→ Replace the wire harness.
Between immobilizer unit coupler “1” and
ground
yellow/blue–ground
light green–any other coupler terminal
red/green–any other coupler terminal
red–any other coupler terminal
Immobilizer unit coupler “1”
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
ECU coupler “2” yellow/blue–any other coupler terminal