B263E

B263D, B263E, B263F INTAKE DOOR MOTOR

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT
1.Turn ignition switch ON.
2.Select "Self Diagnostic Result" mode of "HVAC" using CONSULT.
3.Check DTC.
Is DTC detected?
YES- .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK INTAKE DOOR MOTOR COMMUNICATION SIGNAL

1.Turn ignition switch ON.
2.Check output waveform between intake door motor harness connector and ground with the oscilloscope.





Is the inspection result normal?
YES- GO TO 2.
NO- GO TO 3.

2. CHECK INSTALLATION OF INTAKE DOOR MOTOR CONTROL LINKAGE

Check intake door motor control linkage is properly installed. Door Motor.
Is the inspection result normal?
YES- Replace intake door motor. Intake Door Motor.
NO- Repair or replace malfunctioning part.

3. CHECK INTAKE DOOR MOTOR COMMUNICATION SIGNAL CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect intake door motor and A/C auto amp. connector.
3.Check continuity between intake door motor harness connector and A/C auto amp. harness connector.





Is the inspection result normal?
YES- Replace A/C auto amp. Service and Repair.
NO- Repair harness or connector.