TRUNK/LIFTGATE DOES NOT OPEN [SECURITY AND LOCKS]
TRUNK/LIFTGATE DOES NOT OPEN [SECURITY AND LOCKS]
SM2336283
id0903k7023000
Outline
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Description
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• Trunk/liftgate does not open even if trunk lid opener switch/liftgate opener switch is pressed
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Possible cause
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• Connector or terminal malfunction of the following parts:
• Open circuit in trunk lid opener switch signal circuit (4SD)/liftgate opener switch signal circuit (5HB)
• Open circuit in trunk lid opener switch ground circuit (4SD)/liftgate opener switch ground circuit (5HB)
• Short to ground or open circuit in trunk lid latch and release actuator signal circuit (4SD)/liftgate latch and lock actuator signal circuit (5HB)
• Open circuit in trunk lid latch and release actuator ground circuit (4SD)/liftgate latch and lock actuator ground circuit (5HB)
• Trunk lid opener switch (4SD)/liftgate opener switch (5HB) malfunction
• Trunk lid latch and release actuator (4SD)/liftgate latch and lock actuator (5HB) malfunction
• Electrical supply unit malfunction
• BCM malfunction
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Diagnostic Procedure
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Step |
Inspection |
Results |
Action |
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1
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VERIFY ALL SYSTEM DTCs
• Perform the DTC inspection. (See DTC INSPECTION.)
• Are any DTCs displayed?
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Yes
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Repair the malfunctioning location according to the applicable DTC troubleshooting.
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No
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Go to the next step.
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2
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INSPECT TRUNK LID OPENER SWITCH (4SD)/LIFTGATE OPENER SWITCH (5HB), TRUNK LID LATCH AND RELEASE ACTUATOR (4SD)/LIFTGATE LATCH AND LOCK ACTUATOR (5HB), BCM, AND ELECTRICAL SUPPLY UNIT CONNECTORS FOR MALFUNCTION
• Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.)
• Are the connector and terminal normal?
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Yes
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Go to the next step.
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No
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Repair or replace the malfunctioning location and perform the repair completion verification.
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3
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INSPECT TRUNK LID OPENER SWITCH SIGNAL CIRCUIT (4SD)/LIFTGATE OPENER SWITCH SIGNAL CIRCUIT (5HB) FOR OPEN CIRCUIT
• Inspect the signal circuit for open circuit (See CIRCUIT INSPECTION.)
• Is the circuit normal?
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Yes
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Go to the next step.
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No
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Repair or replace the malfunctioning location and perform the repair completion verification.
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4
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INSPECT TRUNK LID OPENER SWITCH GROUND CIRCUIT (4SD)/LIFTGATE OPENER SWITCH GROUND CIRCUIT (5HB) FOR OPEN CIRCUIT
• Inspect the ground circuit for open circuit. (See CIRCUIT INSPECTION.)
• Is the circuit normal?
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Yes
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Go to the next step.
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No
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Repair or replace the malfunctioning location and perform the repair completion verification.
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5
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INSPECT TRUNK LID LATCH AND RELEASE ACTUATOR SIGNAL CIRCUIT (4SD)/LIFTGATE LATCH AND LOCK ACTUATOR SIGNAL CIRCUIT (5HB) FOR SHORT TO GROUND AND OPEN CIRCUIT
• Inspect the signal circuit for a short to ground and open circuit. (See CIRCUIT INSPECTION.)
• Is the circuit normal?
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Yes
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Go to the next step.
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No
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Repair or replace the malfunctioning location and perform the repair completion verification.
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6
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INSPECT TRUNK LID LATCH AND RELEASE ACTUATOR GROUND CIRCUIT (4SD)/LIFTGATE LATCH AND LOCK ACTUATOR GROUND CIRCUIT (5HB) FOR OPEN CIRCUIT
• Inspect the ground circuit for open circuit. (See CIRCUIT INSPECTION.)
• Is the circuit normal?
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Yes
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Go to the next step.
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No
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Repair or replace the malfunctioning location and perform the repair completion verification.
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7
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INSPECT TRUNK LID OPENER SWITCH (4SD)/LIFTGATE OPENER SWITCH (5HB) FOR MALFUNCTION
• Inspect the applicable part. (See TRUNK LID OPENER SWITCH INSPECTION.) (See LIFTGATE OPENER SWITCH INSPECTION.)
• Is the part normal?
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Yes
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Go to the next step.
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No
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Repair or replace the malfunctioning location and perform the repair completion verification.
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8
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INSPECT TRUNK LID LATCH AND RELEASE ACTUATOR (4SD)/LIFTGATE LATCH AND LOCK ACTUATOR (5HB) FOR MALFUNCTION
• Inspect the applicable part. (See TRUNK LID LATCH AND RELEASE ACTUATOR INSPECTION.) (See LIFTGATE LATCH AND LOCK ACTUATOR INSPECTION.)
• Is the part normal?
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Yes
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Go to the next step.
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No
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Repair or replace the malfunctioning location and perform the repair completion verification.
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9
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INSPECT ELECTRICAL SUPPLY UNIT FOR MALFUNCTION
• Inspect the applicable part. (See ELECTRICAL SUPPLY UNIT (ESU) INSPECTION.)
• Is the part normal?
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Yes
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Go to the next step.
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No
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Repair or replace the malfunctioning location and perform the repair completion verification.
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Repair completion verification
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VERIFY THAT VEHICLE IS REPAIRED
• Install/connect the part removed/disconnected during the troubleshooting procedure.
• Has the malfunction symptom been eliminated?
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Yes
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Complete the symptom troubleshooting. (Explain contents of repair to customer)
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No
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Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
If the CAN communication is normal, perform the diagnosis from Step 1.
• If the malfunction is not resolved, replace the BCM. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)
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