Yamaha 2012 TMAX XP500A Service Manual page 478

Fault code No. ABS_16
Item/components and probable
Order
cause
1 Connections
• Rear wheel sensor coupler
• ABS ECU coupler
2 Wire harness continuity.
3 Defective wheel sensor.
ABS (ANTI-LOCK BRAKE SYSTEM)
Symptom No continuity in the rear wheel sensor circuit.
Check or maintenance job
• Check the coupler for any pins that may be pulled
out.
• Check the locking condition of the coupler.
• If there is a malfunction, repair it and connect the
coupler securely.
TIP
Set the main switch to "OFF" before disconnecting or
connecting a coupler.
• Check for continuity between the white terminal "1"
and the white terminal "3" and between the black
terminal "2" and the black terminal "4".
• If there is no continuity, the wire harness is defec-
tive. Properly repair or replace the wire harness.
• Check that there is no continuity between the
ground and the white terminal "1" or white terminal
"3" and between the ground and the black terminal
"2" or black terminal "4".
• If there is continuity, the wire harness is defective.
Properly repair or replace the wire harness.
• Check that there is no continuity between the white
terminal "1" and the black terminal "2" and between
the white terminal "3" and the black terminal "4".
• If there is continuity, the wire harness is defective.
Properly repair or replace the wire harness.
5. ABS ECU
6. Rear wheel sensor
If the above items were performed and no malfunc-
tions were found, connect the ABS ECU coupler and
rear wheel sensor coupler, and then delete the fault
codes. If fault code No. ABS_16 could not be deleted,
the rear wheel sensor is defective. Replace the rear
wheel sensor.
TIP
Before deleting the fault codes, record all of the fault
codes and perform the related checks and mainte-
nance.
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