ABS (ANTI-LOCK BRAKE SYSTEM)
8-140
• If the brake hoses (to the proportioning valve and the metering valve) are switched during assembly,
the brakes will continue to operate as normal. However, the reduction of the hydraulic pressure for the
rear brake and part of the right front brake will be reversed during the ABS operation when the final
check on page “[D-3] FINAL CHECK” on page 8-144 is performed.
5. Hydraulic unit solenoid coupler terminals
• Check if the front brake, rear brake, and unified brake system solenoid coupler terminals (hydraulic
unit and ABS wire harness) are connected correctly.
6. Hydraulic unit
If the malfunction is not corrected after checking items (1) to (5), replace the hydraulic unit. Be sure
to connect the brake hoses and couplers correctly and securely. Check the hydraulic unit operation.
Refer to “HYDRAULIC UNIT OPERATION TESTS” on page 4-56.
Malfunction code 31 (Disconnection is detected in the battery and ABS ECU circuit.)
1. ABS motor fuse
• Check if the ABS motor fuse in the starter relay is blown.
2. Coupler between the battery and the ABS ECU
• Check if the coupler is connected properly.
3. Wire harness and ABS wire harness
• Turn the main switch to “OFF” and disconnect the ABS ECU coupler and battery leads.
• Check for continuity between the positive battery terminal and the red/blue terminal of the ABS ECU
coupler.
Refer to “CIRCUIT DIAGRAM (1/2)” on page 8-111 and “CIRCUIT DIAGRAM (2/2)” on page 8-113.
4. ABS ECU
• If the malfunction is not corrected after checking items (1) to (3), replace the ABS ECU.
Malfunction code 32 (ABS ECU circuit is broken or short-circuited.)
1. ABS ECU circuit (positive battery terminal to red/white terminal of the ABS ECU coupler)
• Turn the main switch to “OFF” and disconnect the ABS ECU coupler and battery leads.
• Check for continuity between the positive battery terminal and the red/white terminal of the ABS ECU
coupler.
Refer to “CIRCUIT DIAGRAM (1/2)” on page 8-111 and “CIRCUIT DIAGRAM (2/2)” on page 8-113.
If there is continuity, repair or replace the defective harness.
2. ABS ECU circuit (brown/white terminal to red/white terminal of the ABS ECU coupler)
• Turn the main switch to “OFF” and disconnect the ABS ECU coupler.
• Check for continuity between the brown/white and the red/white terminals of the ABS ECU coupler.
Refer to “CIRCUIT DIAGRAM (1/2)” on page 8-111 and “CIRCUIT DIAGRAM (2/2)” on page 8-113.
If there is continuity, repair or replace the defective harness.
3. ABS ECU
• If the malfunction is not corrected after checking items (1) to (2), replace the ABS ECU.
Malfunction code 33 (ABS motor is defective (ABS motor stops and will not rotate).)
1. ABS motor fuse
• Check if the ABS motor fuse in the starter relay is blown.
Terminal color
Solenoid
ABS wire harness
Front brake
white, white
red/white, white/blue
Rear brake
green, green
red/white, white/green
Unified brake system
red, red
red/white, white/yellow
Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
email: [email protected]
