Yamaha FZ1-N 2007 Service Manual page 463

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
Malfunc-
tion code
Sensor power supply failure
63 (front)
64 (rear)
Present ABS ECU may be malfunctioning
malfunc-
tion (test
always
indicates
12 V)
* 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 vehicle is ridden.
Malfunction code 11 (Front wheel sensor signal is not received properly.)
Turn the main switch to "OFF", then back to "ON" after removing the test coupler adapter.
1. ABS warning light remains on.
→ Defective connection in the front wheel sensor circuit.
• Front wheel sensor coupler is disconnected. → [D-3]
• Front wheel sensor lead or internal circuit is broken. → [D-3]
• Wire harness (ABS) sensor circuit is broken. → (Refer to "CIRCUIT DIAGRAM" on page 8-89.)
• ABS ECU coupler terminal is disconnected. → [D-1]
2. ABS warning light goes on for 2 seconds then goes off.
1. With the front wheel stopped, the rear wheel was rotated for more than 20 seconds. This is not
a malfunction.
2. Signal is not generated at the front wheel sensor.
• Front wheel sensor is not installed properly. → [D-3]
• Front wheel sensor rotor is defective. → [D-3]
3. Front wheel sensor circuit is short-circuited.
• Front wheel sensor or lead is short-circuited. → [D-3]
• Wire harness (ABS) sensor circuit is short-circuited. → (Refer to "CIRCUIT DIAGRAM" on
page 8-89.)
4. Front wheel sensor output drops.
• Sensor signal output may drop due to failure on bearings, wheel axle, wheel or sensor housing
of front wheel. Check these components when installed for looseness, distortion, and bends.
Malfunction code 12 (Rear wheel sensor signal is not received properly.)
Turn the main switch to "OFF", then back to "ON" after removing the test coupler adapter.
1. ABS warning light remains on.
→ Defective connection in the rear wheel sensor circuit.
• Rear wheel sensor coupler is disconnected. → [D-4]
• Rear wheel sensor lead or internal circuit is broken. → [D-4]
• Wire harness (ABS) sensor circuit is disconnected. → (Refer to "CIRCUIT DIAGRAM" on page
8-89.)
• ABS ECU coupler terminal is disconnected. → [D-1]
2. ABS warning light goes on for 2 seconds then goes off.
email: info@motomatrix.co.uk
ABS (ANTI-LOCK BRAKE SYSTEM)
Problem
8-108
Check point
• Wire harness circuit
• Battery terminal is disconnected
• Replace the ABS ECU
• ABS wire harness circuit (test
coupler circuits)
• ABS ECU (Replace)
Reference
Malfunction
code 63
(front) and 64
(rear)
Maintenance
of the ABS
ECU
[D-1]