Diagnosis Procedure
- INSPECTION START
Check that which circuit is malfunctioning. Refer to Component Function Check .
Which circuit is malfunctioning?
Output signal circuit
GO TO 2.
Input signal circuit
GO TO 4.
- CHECK TRUNK LID OPEN REQUEST SIGNAL
- Turn Ignition Switch ON.
- Select "TRUNK/BACK DOOR" in "Active Test" mode of "INTELLIGENT KEY" of "BCM" using CONSULT.
- Check voltage between Trunk Closure Assembly harness connector and ground when touching "OPEN".
(+)
(-)
CONSULT Active Test condition
Voltage (V)
(Approx.)
Trunk Closure Assembly
Connector
Terminal
T14
1
Ground
TRUNK/GLASS HATCH
OPEN
0 -> 12 -> 0
Is the inspection result normal?
YES
GO TO 6.
NO
GO TO 3.
- CHECK TRUNK LID OPEN REQUEST SIGNAL CIRCUIT
- Turn Ignition Switch OFF.
- Disconnect negative battery cable.
- Disconnect BCM connector.
- Disconnect Trunk Closure Assembly harness connector.
- Check continuity between BCM harness connector and Trunk Closure Assembly harness connector.
BCM
Trunk Closure Assembly
Continuity
Connector
Terminal
Connector
Terminal
M121
53
T14
1
Existed
- Check continuity between BCM harness connector and ground.
BCM
Ground
Continuity
Connector
Terminal
M121
53
Not existed
Is the inspection result normal?
YES
Replace BCM. Refer to Removal and Installation .
NO
Repair harness or connector.
- CHECK TRUNK LID OPEN/CLOSE STATUS SIGNAL
- Check voltage between BCM harness connector and ground under the following conditions.
(+)
(-)
Condition
Voltage (V)
(Approx.)
BCM
Connector
Terminal
M121
42
Ground
Trunk lid
Open
0
Closed
12
Is the inspection result normal?
YES
GO TO 6.
NO
GO TO 5.
- Check voltage between BCM harness connector and ground under the following conditions.
- CHECK TRUNK LID OPEN/CLOSE STATUS SIGNAL CIRCUIT
- Turn Ignition Switch OFF.
- Disconnect negative battery cable.
- Disconnect BCM connector.
- Disconnect Trunk Closure Assembly harness connector.
- Check continuity between BCM harness connector and Trunk Closure Assembly harness connector.
BCM
Trunk Closure Assembly
Continuity
Connector
Terminal
Connector
Terminal
M121
42
T14
5
Existed
- Check continuity between BCM harness connector and ground.
BCM
Ground
Continuity
Connector
Terminal
M121
42
Not existed
Is the inspection result normal?
YES
Replace Trunk Closure Assembly. Refer to Removal and Installation .
NO
Repair harness or connector.
- CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident .
INSPECTION END