Yamaha 2003 FJR1300, Service Manual

Page: 98 / 162

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CHAS
*1 Malfunction code 11 is indicated if the rear wheel rotates for more than 20 seconds with the front wheel
stopped.
NOTE:
_
Malfunction code 15 (front wheel sensor) or 16 (rear wheel sensor) is displayed if a defective con-
nection to either the front or rear sensor is detected whether or not the motorcycle is ridden.
34
Defective operation of the ABS motor is
detected. (ABS motor keeps running and will
not stop.) • Fail-safe relay
• ABS wire harness circuit
• ABS motor circuit [C-5-9] Mal-
function code
34 (page 94)
41
Front wheel will not recover from the locking
tendency even though the signal is continuously
transmitted from the ECU (ABS) to release the
hydraulic state (when the battery voltage is nor-
mal). • Brake dragging
• Hydraulic unit operation test 2
(Refer to [D-6-3-2].)
• Front wheel brake line
[C-5-10] Mal-
function code
41 (page 95)
42
Rear wheel will not recover from the locking
tendency even though the signal is continuously
transmitted from the ECU (ABS) to release the
hydraulic state (when the battery voltage is nor-
mal). • Brake dragging
• Hydraulic unit operation test 2
(Refer to [D-6-3-2].)
• Rear wheel brake line
[C-5-11] Mal-
function code
42 (page 96)
51
Front wheel will not recover from the locking
tendency even though the signal is continuously
transmitted from the ECU (ABS) to release the
hydraulic state (when the battery voltage is
low). • Brake dragging
• Hydraulic unit operation test 2
(Refer to [D-6-3-2].)
• Front wheel brake line
• Battery voltage
[C-5-12] Mal-
function code
51 (page 98)
52
Rear wheel will not recover from the locking
tendency even though the signal is continuously
transmitted from the ECU (ABS) to release the
hydraulic state (when the battery voltage is
low). • Brake dragging
• Hydraulic unit operation test 2
(Refer to [D-6-3-2].)
• Rear wheel brake line
• Battery voltage
[C-5-13] Mal-
function code
52 (page 99)
Present mal-
function (test
always indi-
cates 12 V)
ECU (ABS) may be malfunctioning • ABS wire harness circuit (test cou-
pler circuits)
• ECU (ABS) (Replace)
[D-1] Mainte-
nance of the
ECU (ABS)
(page 101)
Malfunction
code
Problem Check point Reference
ANTI-LOCK BRAKE SYSTEM (FJR1300A)