B1778
DTC Logic
DTC DETECTION LOGIC
NOTE:
If two or more DTCs are detected, Related Tests, Information And Procedures, and determine trouble diagnosis order.
DTC CONFIRMATION PROCEDURE
1. PERFORM DTC CONFIRMATION PROCEDURE
1.Start engine.
2.Operate soft top to fully open and fully close.
3.Select "Self Diagnostic Result" mode of "CONVERTIBLE ROOF" using CONSULT.
4.Check DTC.
Is DTC detected?
YES- Go to .
NO- INSPECTION END
Diagnosis Procedure
1. CHECK TRUNK LID OPENER OUTPUT SIGNAL
1.Turn ignition switch OFF.
2.Disconnect trunk lid lock assembly harness connector.
3.Turn ignition switch ON.
4.Select "CONVERTIBLE ROOF" using CONSULT.
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- GO TO 2.
2. CHECK TRUNK LID OPENER OUTPUT SIGNAL CIRCUIT
1.Disconnect soft top control unit harness connector.
2.Check continuity between soft top control unit harness connector and soft top control unit harness connector.
3.Also check harness for short to ground and short to power.
Is the inspection result normal?
YES- Replace soft top control unit. Removal And Installation.
NO- Repair open circuit, short to ground or short to power in harness or connectors.
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 INTERMITTENT INCIDENT
Intermittent Incident Regular Grade.
- INSPECTION END