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June 2013
Electrical Systems Operation & Diagnosis Module (602)
Note: The BIU on all vehicles must be set to “market mode”.
Combination Meter or Engine Control Module
Replacement of the combination meter or Engine Control Module* requires that the new part be
registered to the vehicle after installation. Also all the keys previously registered to the vehicle
must be present. Failure to register the current keys during the registration process will result in
the absent keys not being able to start the engine.
• While diagnostic items are being checked, do not operate radios, portable telephones,
etc. which emit electromagnetic waves near or inside the vehicle.
• When turning the ignition switch to ON or OFF while diagnostic items are being checked,
do not allow keys with different ID codes close to the ignition switch. If the ignition key is
in a key holder, remove it from the holder before carrying out diagnosis.
• When repeatedly turning the ignition switch to ON or OFF while diagnostic items are
being checked, it should be switched in cycles of “ON” for at least 5 seconds and “OFF”
for at least 8 seconds.
• If the engine fails to start with a registered ignition key, detach the ignition key from ignition
switch and wait for approx. 1 second until immobilizer indicator light begins to flash. And
then start the engine again.
• Before checking the diagnostic items, obtain all keys for the vehicle to be checked
possessed by owner.
Registration Process
Turn Ignition Switch ON
Immobilizer OK
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