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Description
This dtc is output when a key code that has not been registered in the transponder key ecu is inserted into the ignition key cylinder.
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Inspection procedure
Ok: engine starts.

End
Unmatched encryption code
CommunicationAir conditioning control assembly (for automatic air conditioning system)
Components
Removal
Disconnect cable from negative battery
terminal
Notice:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.
Remove no. 2 Instrument cluster finish
panel center ...
General maintenance (2006/01- )
Inspect drive belt (see page em-7)
Replace spark plugs (see page ig-7)
Replace air cleaner filter
Remove the air filter.
Visually check that the air filter is not excessively
damaged or oily.
Replace the air filter with a new one, if necessary.
Replace engine oil and oil fil ...
Removal
Disconnect cable from negative battery
terminal
Caution:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.
Remove fan and generator v belt
Remove the belt (see page em-6).
...