POWER LIFTGATE (PLG) BUZZER NOT ACTIVATED [POWER LIFTGATE (PLG) SYSTEM]

id0903c9090500

Description
•  The power liftgate (PLG) buzzer is not activated during power liftgate (PLG) operation.
Possible Causes
•  Open circuit in wiring harness between the following terminals:
?  Power liftgate (PLG) control module terminal 1R and power liftgate (PLG) buzzer terminal B
?  Power liftgate (PLG) buzzer terminal A and ground
•  Short to ground in wiring harness between the following terminals:
?  Power liftgate (PLG) control module terminal 1R and power liftgate (PLG) buzzer terminal B
•  Power liftgate (PLG) buzzer malfunction

Diagnostic Procedure

Step

Inspection

Action
1
VERIFY IF MALFUNCTION CAUSE IS SHORT TO GROUND IN WIRING HARNESS BETWEEN POWER LIFTGATE (PLG) CONTROL MODULE AND POWER LIFTGATE (PLG) BUZZER
•  Disconnect the negative battery terminal.
•  Disconnect the power liftgate (PLG) control module connector.
•  Inspect the wiring harness for continuity between the following terminals (vehicle wiring harness side).
?  Power liftgate (PLG) control module terminal 1R and ground
•  Is there continuity?
Yes
•  Repair or replace the wiring harness which is shorted to ground.
•  After performing the repair, go to Step 3.
No
Go to the next step.
2
VERIFY IF MALFUNCTION CAUSE IS OPEN CIRCUIT IN WIRING HARNESS BETWEEN POWER LIFTGATE (PLG) CONTROL MODULE AND POWER LIFTGATE (PLG) BUZZER
•  Disconnect the negative battery terminal.
•  Inspect the wiring harness for continuity between the following terminals (vehicle wiring harness side).
?  Power liftgate (PLG) control module terminal 1R and power liftgate (PLG) buzzer terminal B
•  Is there continuity?
Yes
Go to the next step.
No
•  Repair or replace the wiring harness which has an open circuit.
•  After performing the repair, go to the next step.
3
VERIFY IF MALFUNCTION CAUSE IS OPEN CIRCUIT IN WIRING HARNESS BETWEEN POWER LIFTGATE (PLG) BUZZER AND GROUND
•  Disconnect the negative battery terminal.
•  Inspect the wiring harness for continuity between the following terminals (vehicle wiring harness side).
?  Power liftgate (PLG) buzzer terminal A and ground
•  Is there continuity?
Yes
Replace the power liftgate (PLG) buzzer, then go to the next step.
(See POWER LIFTGATE (PLG) BUZZER REMOVAL/INSTALLATION.)
No
•  Repair or replace the wiring harness which has an open circuit.
•  After performing the repair, go to the next step.
4
VERIFY IF MALFUNCTION IS RESOLVED
•  Is the power liftgate (PLG) buzzer activated?
Yes
Troubleshooting completed. (Explain the contents of the servicing to the customer.)
No
If the malfunction has not been resolved, repeat the inspection from Step 1.