Yamaha VMAX 2009 Service Manual page 547

Fault code No. ABS-42
ABS-47
Order Item/components and probable
cause
5 Hydraulic unit assembly
EWA2S31025
WARNING
The rear brake will not function properly if the connections are reversed.
• Brake hose (rear brake master cylinder to hydraulic unit) "1" inlet: from the rear brake master
cylinder
• Brake hose (hydraulic unit to rear brake caliper) "2" outlet: to the rear brake caliper
TIP
• If the brake hose inlet and outlet connections are reversed on the hydraulic unit, the brake pedal will
be pressed down to its full-stroke position without responding, and then it will be pushed back slowly
without pulsating when the final check on page "[D-3] FINAL CHECK" on page 8-123 is performed.
• If the front and rear brake hose connections are reversed on the hydraulic unit, the pulsating action in
the brake lever and brake pedal will be performed in the reverse order when the final check on page
"[D-3] FINAL CHECK" on page 8-123 is performed.
ABS (ANTI-LOCK BRAKE SYSTEM)
Symptom Rear wheel will not recover from the locking ten-
dency even though the signal is continuously
transmitted from the ABS ECU to release the hy-
Check or maintenance job
If the malfunction is not corrected
after checking items (1) to (4), re-
place the hydraulic unit assembly.
Be sure to connect the brake
hose, and coupler correctly and
securely. Check the hydraulic unit
operation.
Refer to "HYDRAULIC UNIT OP-
ERATION TESTS" on page 4-59.
8-114
draulic pressure.
Reinstatement
confirmation
method