Yamaha MT-09 2021 - Page 683

9-253
P2158
• Short circuit check
TIP
Disconnect the ECU and ABS ECU related connectors before checking.
Refer to “PARTS CONNECTED TO THE ECU” on page 9-4 and “PARTS CONNECTED TO THE ABS
ECU” on page 9-4.
Ground short circuit check “A”
Lines short circuit check “B”
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
L/W
B
B/W
W/G
GYL
R/B
Br
L/W
G/O W/Y
LBWY L/B
YBr
Gy LLVP P/WLg/LY/LL/B
B/LB/LBr/WGy/GG/LB/YL/W
W/YW/GG/WG/WL/WL/Y
3
*
3
**
1
2
*. MTN890
**. MTN890D
Is resistance 0 Ω?
YES
→ Go to “Short circuit check”.
NO
a. Replace the wire harness.
b. Execute the diagnostic mode. (Code 16)
c. Rotate the front wheel by hand and check that the indicated value increases.
Is that value increased?
YES
→ Go to step 10, and complete the service.
NO
→ Go to “Short circuit check”.
Between ABS ECU coupler “2” and ground
brown–ground
yellow–ground
white/green–ground
Front wheel sensor coupler “1”
brown–any other coupler terminal
yellow–any other coupler terminal
ABS ECU coupler “2”
brown–any other coupler terminal
yellow–any other coupler terminal
white/green–any other coupler terminal
ECU coupler “3” white/green–any other coupler terminal