Yamaha TMAX 2020 Service Manual page 633

Is it in the "Recovered" condition?
YES
 Go to step 6, and complete the service.
NO
 Go to step 3.
3. Wire harness continuity.
• Disconnect the accelerator position sensor coupler and ECU coupler.
• Open circuit check
Between accelerator position sensor coupler "1"
and ECU coupler "2"
Is resistance 0 ?
YES
 Go to "Short circuit check".
NO
a. Replace the wire harness.
b. Push the ON/start 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 6, 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 accelerator position sensor coupler "1"
and ground
P2122, P2123, P2127, P2128, P2138
1
W B/L L R
9-159
[P2122, P2123, P2127, P2128, P2138]
white–white
[P2123, P2128] black/blue–black/blue
[P2122, P2127] blue–blue
[P2122, P2123, P2127, P2128, P2138] red–red
2
L Lg L Y/R R/W
W W
B/L R
B/L Lg B
[P2122, P2123, P2127, P2128, P2138]
white–ground
[P2123, P2128] black/blue–ground
[P2122, P2127] blue–ground
[P2122, P2123, P2127, P2128, P2138]
red–ground