Yamaha FJR13AG Service Manual page 696

2. Disconnect the ABS ECU coupler.
3. Connect the test coupler adapter to the ABS
test coupler.
4. Turn the main switch to "ON".
5. Check:
• ABS ECU voltage
Lower than 12.8 V → Charge or replace the
battery.
Battery voltage
Higher than 12.8 V
▼ ▼▼▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼
a. Connect the pocket tester (DC 20 V) to the
ABS ECU coupler.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
brown/white "1"
• Negative tester probe →
ground
L/Y
B/W W B G/W L/W W/Y
L/B B/W Gy W
B/G
L/R Y
b. Measure the ABS ECU voltage.
▲ ▲▲▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲
6. Check:
• ABS-ECU-to-start/engine-stop-switch-lead
continuity
No continuity → Replace the wire harness.
Continuity is all right.
▼ ▼▼▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼
a. Connect the pocket tester (Ω × 1) to the ABS
ECU coupler and right handlebar switch cou-
pler.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
ABS (ANTI-LOCK BRAKE SYSTEM)
▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼▼▼
R/W
G/R
R/L
W/L G/Y Sb Br/W
1
▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲▲▲
▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼▼▼
8-219
• Positive tester probe →
white/blue "1" (ABS ECU)
• Negative tester probe →
white/blue "2" (right handlebar switch)
B/W L/Y W B G/W L/W W/Y
B/G L/B B/W Gy W
L/R Y
R/B R/W
b. Check for continuity between the ABS ECU
and the start/engine stop switch lead.
▲ ▲▲▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲
7. Check:
• ABS ECU voltage
Out of specification → Replace the right han-
dlebar switch.
Push the " " side of the start/en-
gine stop switch: less than 1 V
Release the start/engine stop
switch: more than 12 V
▼ ▼▼▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼
a. Connect the pocket tester (DC 20 V) to the
ABS ECU coupler.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
white/blue "1"
• Negative tester probe →
ground
L/Y
B/W W B G/W L/W W/Y
B/G L/B B/W Gy W
L/R Y
b. Shift the transmission into gear and extend
the sidestand.
c. Push the " " side of the start/engine stop
switch.
R/W
G/R R/L
W/L G/Y Sb Br/W
1
B W/L
2
▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲▲▲
▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼▼▼
R/W
G/R R/L
W/L G/Y Sb Br/W
1