Yamaha TMAX 2020 Service Manual page 600

7. Wire harness continuity.
• Open circuit check
• Disconnect the ignition system relay coupler, ignition fuse, handlebar switch coupler (left) and ECU
coupler.
Between ignition system relay coupler "1" and
ignition fuse holder "2"
Between ignition fuse holder "2" and handlebar
switch coupler (left) "3"
Between left handlebar switch coupler (left) "3"
and ECU coupler "4"
1 2
R
Br/L
R L/Y
Is resistance 0 ?
YES
Go to "Short circuit check".
NO
a. Replace the wire harness.
b. Push the ON/start switch.
c. Push and "SET–" side of the cruise control setting switch, and then check the condition of the
DTC using the malfunction mode of the YDT.
Is it in the "Recovered" condition?
YES
Go to step 10, 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 9-3.
Ground short circuit check "A"
Between ignition system relay coupler "1" and
ground
Between handlebar switch coupler (left) "3" and
ground
brown/blue–brown/blue
yellow/black–yellow/black
green/blue–green/blue
3
Dg Ch Y/B O/W
Br/W R/G G/L W/L B/W
brown/blue–ground
green/blue–ground
yellow/black–ground
9-126
4
Lg/W Y/L W/G O/W Lg/L P Y/G
Lg/L R/G G/L Gy/G Br/W
Lg
L/W Lg/B G/R
P0564
L B/Y
B/L
W/Y W/G