Yamaha 2006 FJR1300A Service Manual page 510

1. Check the fuses.
(Main, ignition, and backup)
Refer to "CHECKING THE FUS-
ES" on page 8-153.
OK ↓
2. Check the battery.
Refer to "CHECKING AND
CHARGING THE BATTERY" on
page 8-154.
OK ↓
3. Check the main switch.
Refer to "CHECKING THE
SWITCHES" on page 8-149.
OK ↓
4. Check the entire immobilizer sys-
tem wiring.
Refer to "CIRCUIT DIAGRAM (1/2)"
on page 8-99 and "CIRCUIT DIA-
GRAM (2/2)" on page 8-101.
OK ↓
• Check the condition each of the im-
mobilizer system circuits.
• Refer to "SELF-DIAGNOSIS FAULT
CODE INDICATION" on page 8-107.
EAS27720
SELF-DIAGNOSIS FAULT CODE INDICATION
When a system malfunction occurs, the fault code number is indicated in the LCD display of the meter
assembly and the immobilizer system indicator light flashes at the same time. The pattern of flashing
also shows the fault code.
Fault
Part
code
51 IMMOBILIZER
UNIT
NG →
NG →
NG →
NG →
Symptom
Code cannot be
transmitted be-
tween the key and
the immobilizer unit.
8-107
IMMOBILIZER SYSTEM
Replace the fuse(s).
• Clean the battery terminals.
• Recharge or replace the battery.
Replace the main switch/immobilizer unit.
Properly connect or repair the immobilizer
system wiring.
Cause
1. Radio wave interfer-
ence caused by ob-
jects around the keys
and antenna.
2. Immobilizer unit mal-
function.
3. Key malfunction.
Action
1. Keep magnets,
metal objects,
and other immo-
bilizer system
keys away from
the keys and an-
tennas.
2. Replace the
main switch/im-
mobilizer unit.
3. Replace the key.