DTC DETECTION LOGIC 
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
Is outside key antenna DTC detected?
YES >> Refer to DLK "Diagnosis Procedure".
NO >> Outside key antenna (rear bumper) is OK.
Regarding Wiring Diagram information, refer to DLK "INTELLIGENT KEY SYSTEM : Wiring Diagram".
1.CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1

Is the inspection result normal?
YES >> Replace BCM. Refer to BCS "Removal and Installation".
NO >> GO TO 2.
2.CHECK OUTSIDE KEY ANTENNA CIRCUIT


Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 2

Is the inspection result normal?
YES >> Replace outside key antenna (rear bumper).
NO >> Replace BCM. Refer to BCS "Removal and Installation".

Diagnosis Procedure Regarding Wiring Diagram information, refer to BCS "Wiring Diagram". 1.CHECK FUSES AND FUSIBLE LINK Check that the following fuses and fusible link are not blown.&nb ...
U0300 Can communication data
Description
The amount of data transmitted from each control unit is read.
DTC Logic
DTC DETECTION LOGIC
DTC
Trouble diagnosis name
DTC detection condition
Possible causes
U0300
Internal Control Module Software
Incompatibility
When the amount of data transmitt ...
OFF Position warning does not operate
Diagnosis Procedure
1.CHECK DTC WITH BCM
Check that DTC is not detected with BCM
Is the inspection result normal?
YES >> GO TO 2.
NO >> Perform trouble diagnosis relevant to DTC indicated.
2.CHECK DTC WITH COMBINATION METER
Check that DTC is not detected with combination meter
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