Yamaha XT660R S Service Manual page 445

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3. When the main switch is set to "ON", the immobilizer system indicator light flashes after 1 sec-

• Check if metal or other immobilizer system keys exists near the immobilizer unit. If found, remove

the metal or keys, and then check the condition again.

Set the main switch to "ON" with

another standard key and check the

immobilizer system indicator. The indi-

cator goes on for about 1 second, then

Set the main switch to "ON" with the

code re-registering key and check the

immobilizer system indicator.

Check if a self-diagnosis code is dis-

Immobilizer unit or ECU malfunction

Check the signal lead (yellow/blue)

between the immobilizer unit and ECU

Replace the immobilizer unit or ECU.

IMMOBILIZER SYSTEM

Not displayed

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First standard key (transponder) is

Second standard

der) is defective.

Read the malfunction code and check

the corresponding part.

Refer to "SELF-DIAGNOSIS MAL-

FUNCTION CODES".

Yellow/blue lead is disconnected or

short-circuited. Repair or replace the

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