Yamaha TMAX 2020 Service Manual page 654

EAS20710
24_ABS
EAS33374
TROUBLESHOOTING
Item
Brake light switch or tail/brake light
Procedure
1. Defective signaling system (tail/brake light or brake light switch)
• Check the brake light switches.
Refer to "CHECKING THE SWITCHES" on page 8-91.
Is check result OK?
YES
 Go to step 2.
NO
 Replace the brake light switches.
2. Defective coupler between the signaling system (tail/brake light or brake light switch) and the
hydraulic unit assembly
• Check the coupler for any pins that may be pulled out.
• Check the locking condition of the coupler.
TIP
Push the OFF/LOCK switch before disconnecting or connecting a coupler.
Is check result OK?
YES
[XP560E]  Go to step 3.
[XP560D]  Go to step 4.
NO
 If there is a malfunction, repair it and connect the coupler securely.
3. Wire harness continuity (XP560E)
• Disconnect the handlebar switch coupler (right), handlebar switch coupler (left) and ABS ECU cou-
pler.
• Open circuit check
Between handlebar switch coupler (right) "1"
and ABS ECU coupler "3"
Between rear handlebar switch coupler (left) "2"
and ABS ECU coupler "3"
1
Br G/Y
2
Br G/Y
green/yellow–green/yellow
green/yellow–green/yellow
3
9-180
24_ABS
W B B W W/Y G/R W/G
R/W B
R/L B/G
G/Y Lg Lg Br/W Lg/L Lg/W B/L