Diagnosis Procedure

TRUNK LID OPENER ACTUATOR


Diagnosis Procedure

1.CHECK SELF-DIAGNOSIS OF CONVERTIBLE ROOF
Perform self-diagnosis of "CONVERTIBLE ROOF" using CONSULT-III and check that DTC "B1778" is displayed.
Is DTC "B1778" displayed?
YES - B1778.
NO - GO TO 2.
2.CHECK TRUNK LID OPENER ACTUATOR INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect trunk lid lock assembly connector.
3. Turn ignition switch ON.
4. Select "CONVERTIBLE ROOF" using CONSULT-III.
5. Select "TRUNK OPENER" in "ACTIVE TEST" mode.
6. Touch "ON" to check voltage between trunk lid lock assembly harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Replace soft top control unit. Removal And Installation.
3.CHECK TRUNK LID OPENER ACTUATOR GROUND
Check continuity between trunk lid lock assembly harness connector and ground.





Is the inspection result normal?
YES - Replace trunk lid lock assembly.
NO - GO TO 4.
4.CHECK TRUNK LID OPEN REQUEST SIGNAL
1. Turn ignition switch OFF.
2. Disconnect soft top control unit connector.
3. Turn ignition switch ON.
4. Select "INTELLIGENT KEY" of "BCM" using CONSULT-III.
5. Select "TRUNK/BACK DOOR" in "ACTIVE TEST" mode.
6. Touch "Open" to check voltage between soft top control unit harness connector and ground.





Is the inspection result normal?
YES - Replace soft top control unit. Removal And Installation.
NO - GO TO 5.
5.CHECK TRUNK LID OPEN REQUEST SIGNAL CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and soft top control unit harness connector.





3. Check continuity between BCM harness connector and ground.





Is the inspection result normal?
YES - Replace BCM. Removal And Installation.
NO - Repair or replace harness.