Yamaha TMAX 2020 Service Manual page 583

Is resistance 0 ?
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 condition of the DTC using the malfunction mode of the YDT.
Is it in the "Recovered" condition?
YES
 Go to step 7, 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 coil coupler "1" and ground
Lines short circuit check "B"
Ignition coil coupler "1"
ECU coupler "2"
A
1
2
Y/R B/G O
Y/W G/B R/B B
R/L Y/R B
R Y/W L/Y R/L B B
B
9-109
1
orange–ground
orange–any other coupler terminal
orange–any other coupler terminal
2
Y/R B/G O
Y/W G/B R/B B
R/L Y/R B
R Y/W L/Y R/L B B
P0351
1