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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
CommunicationOn-vehicle inspection
Check accelerator pedal rod
Check the voltage.
Connect the intelligent tester to the dlc3.
Turn the ignition switch on
Turn the intelligent tester on.
Select the menu items: diagnosis /
enhanced obd ii / data list / all /
accel pos #1, accel pos #2.
Operate the acceler ...
Automatic transaxle unit
Components
...
Front seat cushion heater
Inspection
Inspect front seat cushion heater
assembly lh
Measure the resistance of the seat cushion heater.
Standard resistance
If the result is not as specified, replace the seat
cushion heater assembly.
Heat the thermostat with a light.
Measure the resistance of the sea ...