Yamaha 2003 FJR1300, Service Manual

Page: 124 / 162

– 116 –
CHAS
ANTI-LOCK BRAKE SYSTEM (FJR1300A)
• Checking the resistance of the solenoid
valves and ABS motor for continuity
CAUTION:
When check the hydraulic unit solenoid
relay and ABS motor, do not remove the
brake hoses.
1. Measure:
• resistance of the solenoid valve (front)
Connect a pocket tester (
Ω ×
1) to the termi-
nals of the solenoid valve (front).
Tester positive probe
→
Terminal
1
Tester negative probe
→
Terminal
2
Out of specification
→
Replace the hydrau-
lic unit.
2. Measure:
• resistance of the solenoid valve (rear)
Connect the pocket tester (
Ω ×
1) to the ter-
minals of solenoid valve (rear).
Tester positive probe
→
Terminal
4
Tester negative probe
→
Terminal
3
Out of specification
→
Replace the hydrau-
lic unit.
3. Check:
• ABS motor for continuity
Connect the pocket tester (
Ω ×
1) to the ter-
minals of the ABS motor coupler.
Tester positive probe
→
Terminal
1
Tester negative probe
→
Terminal
2
No continuity
→
Replace the hydraulic unit.
Solenoid valve resistance
2.96 ~ 3.2
Ω
at 20 °C
~~
Solenoid valve resistance
2.96 ~ 3.2
Ω
at 20 °C
There is continuity.