Yamaha YP250R 2005 Service Manual page 358

2. When the main switch is turned to "ON", the immobilizer system indicator light flashes.
• Check if a metal object or other immobilizer system keys are placed near the immobilizer
antenna. If so, remove the objects or keys, and then check the condition again.
Turn the main switch to "ON" with
another registered standard key and
check the immobilizer system indicator
light. The indicator light goes on for
about 2 seconds, then goes off.
Turn the main switch to "ON" with the
code re-registering key and check the
immobilizer system indicator light.
Check the immobilizer system indica-
tor light is flashing.
immobilizer antenna or CDI unit mal-
function
Check the signal leads (green/white)
between the immobilizer antenna and
CDI unit connector.
Replace the CDI unit.
IMMOBILIZER SYSTEM
Malfunction
Malfunction
Not flashing
Malfunction
Correct
Correct
First standard key (transponder) is
defective.
Second standard
Correct
key (transpon-
der) is defective.
Flashing
Determine
according to the flash pattern and
check the corresponding part.
Refer to "SELF-DIAGNOSIS MAL-
FUNCTION CODES".
Green/white leads are disconnected or
short-circuited. Repair or replace the
circuit.
8 - 64
ELEC
Re-register
the stan-
dard key.
Malfunc-
tion
Replace the
standard
key.
the malfunction code
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