DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
Is inside key antenna DTC detected?
YES >> Refer to DLK "Diagnosis Procedure".
NO >> Inside key antenna (instrument center) is OK.
Regarding Wiring Diagram information, refer to DLK "INTELLIGENT KEY SYSTEM : Wiring Diagram".
1.CHECK INSIDE 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 INSIDE KEY ANTENNA CIRCUIT
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK INSIDE KEY ANTENNA INPUT SIGNAL 2
Is the inspection result normal?
YES >> Replace inside key antenna (instrument center). Refer to DLK "INSTRUMENT CENTER : Removal and Installation".
NO >> Replace BCM. Refer to BCS "Removal and Installation".
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (BCM) ...
Automatic speed control device (ASCD)
Automatic speed control device (ascd) : system diagram
NOTE:
Transmission range switch and TCM is also for A/T models.
Automatic speed control device (ascd) : system description
INPUT/OUTPUT SIGNAL CHART
Sensor
Input signal to ECM
ECM function
Actuator
Brake pedal ...
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 ...