Code No.11 Transponder
communication system or radio interference of key ID.
DIAGNOSIS CODE SET CONDITIONS
This code is set if the key ID is sent to the immobilizer-ECU from the ignition key when
the ignition switch is turned to the ON position.
PROBABLE CAUSES
- Damaged harness wires and connectors
- Malfunction of ignition key
- Malfunction of immobilizer-ECU
DIAGNOSIS PROCEDURE
STEP 1. Check that the engine is started with another
registered ignition key.
Q.
Is the check result normal?
Replace the ignition key that cannot start the engine with new registered ignition
key. (Refer to 
).
Go to Step 2.
STEP 2. M.U.T.-III diagnosis code
Check that the immobilizer-ECU sets a diagnosis code.
Q.
Is the diagnosis code set?
YES (diagnosis cede No.11 is set) : Replace the immobilizer-ECU and register the ignition key. (Refer to ).
YES (diagnosis cede No.12 is set) : Code No.12 key IDs are not the same or are not registered. (Refer to ).
NO (diagnosis code Nos.11 and 12 is not set) : The procedure is complete.