DTC B1178:11 [BCM]
id0902f5340900
4SD
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DESCRIPTION |
Trunk lid latch switch circuit malfunction |
|---|---|
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DETECTION CONDITION
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• Short to ground in the trunk lid latch switch circuit with the trunk closed (trunk lid latch switch off).
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POSSIBLE CAUSE
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• Trunk lid latch and release actuator connector or terminals malfunction
• Trunk lid latch switch malfunction
• BCM connector or terminals malfunction
• Short to ground in wiring harness between trunk lid latch and release actuator terminal C and BCM terminal 6F
• BCM malfunction
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Diagnostic Procedure
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STEP |
INSPECTION |
ACTION |
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|---|---|---|---|
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1
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CONFIRM BCM DTC
• Clear the DTC using the M-MDS.
(See CLEARING DTC [BCM].)
• Perform the BCM DTC inspection using the M-MDS.
(See DTC INSPECTION [BCM].)
• Is the same DTC present?
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Yes
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Go to the next step.
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No
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Go to Step 7.
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2
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INSPECT TRUNK LID LATCH AND RELEASE ACTUATOR CONNECTOR AND TERMINALS
• Switch the ignition to off.
• Disconnect the negative battery cable.
• Disconnect the trunk lid latch and release actuator connector.
• Inspect the connector and terminals (corrosion, damage, pin disconnection).
• Is there any malfunction?
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Yes
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Repair or replace the connector or terminals, then go to Step 6.
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No
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Go to the next step.
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3
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INSPECT TRUNK LID LATCH SWITCH
• Inspect the trunk lid latch switch.
• Is there any malfunction?
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Yes
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Replace the trunk lid latch and release actuator, then go to Step 6.
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No
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Go to the next step.
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4
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INSPECT BCM CONNECTOR AND TERMINALS
• Disconnect the BCM connector.
• Inspect the connector and terminals (corrosion, damage, pin disconnection).
• Is there any malfunction?
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Yes
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Repair or replace the connector or terminals, then go to Step 6.
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No
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Go to the next step.
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5
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INSPECT TRUNK LID LATCH SWITCH CIRCUIT FOR SHORT TO GROUND
• Verify that the trunk lid latch and release actuator and BCM connectors are disconnected.
• Inspect for continuity between trunk lid latch and release actuator terminal C (wiring harness-side) and body ground.
• Is there continuity?
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Yes
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Repair or replace the wiring harness for a possible short to ground, then go to the next step.
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No
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Go to the next step.
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||
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6
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VERIFY TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected connectors.
• Reconnect the negative battery cable.
• Clear the DTC using the M-MDS.
(See CLEARING DTC [BCM].)
• Perform the BCM DTC inspection using the M-MDS.
(See DTC INSPECTION [BCM].)
• Is the same DTC present?
|
Yes
|
Repeat the inspection from Step 1.
• If the malfunction recurs, replace the BCM.
Go to the next step.
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No
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Go to the next step.
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7
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VERIFY THAT NO OTHER DTCs ARE PRESENT
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
(See DTC TABLE [BCM].)
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No
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DTC troubleshooting completed.
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5HB
|
DESCRIPTION |
Liftgate latch switch circuit malfunction |
|---|---|
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DETECTION CONDITION
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• Short to ground in the liftgate latch switch circuit with the liftgate closed (liftgate latch switch off).
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POSSIBLE CAUSE
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• Liftgate latch and lock actuator connector or terminals malfunction
• Liftgate latch switch malfunction
• BCM connector or terminals malfunction
• Short to ground in wiring harness between liftgate latch and lock actuator terminal C and BCM terminal 6F
• BCM malfunction
|
 |
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Diagnostic Procedure
|
STEP |
INSPECTION |
ACTION |
|
|---|---|---|---|
|
1
|
CONFIRM BCM DTC
• Clear the DTC using the M-MDS.
(See CLEARING DTC [BCM].)
• Perform the BCM DTC inspection using the M-MDS.
(See DTC INSPECTION [BCM].)
• Is the same DTC present?
|
Yes
|
Go to the next step.
|
|
No
|
Go to Step 7.
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2
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INSPECT LIFTGATE LATCH AND LOCK ACTUATOR CONNECTOR AND TERMINALS
• Switch the ignition to off.
• Disconnect the negative battery cable.
• Disconnect the liftgate latch and lock actuator connector.
• Inspect the connector and terminals (corrosion, damage, pin disconnection).
• Is there any malfunction?
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Yes
|
Repair or replace the connector or terminals, then go to Step 6.
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No
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Go to the next step.
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||
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3
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INSPECT LIFTGATE LATCH SWITCH
• Inspect the liftgate latch switch.
• Is there any malfunction?
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Yes
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Replace the liftgate latch and lock actuator, then go to Step 6.
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No
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Go to the next step.
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4
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INSPECT BCM CONNECTOR AND TERMINALS
• Disconnect the BCM connector.
• Inspect the connector and terminals (corrosion, damage, pin disconnection).
• Is there any malfunction?
|
Yes
|
Repair or replace the connector or terminals, then go to Step 6.
|
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No
|
Go to the next step.
|
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5
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INSPECT LIFTGATE LATCH SWITCH CIRCUIT FOR SHORT TO GROUND
• Verify that the liftgate latch and lock actuator and BCM connectors are disconnected.
• Inspect for continuity between liftgate latch and lock actuator terminal C (wiring harness-side) and body ground.
• Is there continuity?
|
Yes
|
Repair or replace the wiring harness for a possible short to ground, then go to the next step.
|
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No
|
Go to the next step.
|
||
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6
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VERIFY TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected connectors.
• Reconnect the negative battery cable.
• Clear the DTC using the M-MDS.
(See CLEARING DTC [BCM].)
• Perform the BCM DTC inspection using the M-MDS.
(See DTC INSPECTION [BCM].)
• Is the same DTC present?
|
Yes
|
Repeat the inspection from Step 1.
• If the malfunction recurs, replace the BCM.
Go to the next step.
|
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No
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Go to the next step.
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7
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VERIFY THAT NO OTHER DTCs ARE PRESENT
• Are any DTCs present?
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Yes
|
Go to the applicable DTC inspection.
(See DTC TABLE [BCM].)
|
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No
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DTC troubleshooting completed.
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