Pinpoint Test Bu: The Power Liftgate Warning Chime Is Inoperative
- Normal Operation and Fault Conditions
See Power Liftgate Warning Chime. REFER to: Warning Chimes - System Operation and Component Description .
Possible Sources
- Communication concern
- Power liftgate concern
- RGTM
- GWM
- IPC
- BU1 CHECK THE SEATBELT WARNING CHIME OPERATION
- Ignition OFF.
- Ignition ON.
- Monitor the seatbelt warning chime when the ignition switch is transitioned from OFF to RUN for 6 seconds.
Does the seatbelt warning chime operate for approximately 6 seconds?
Yes GO to BU2 No GO to Pinpoint Test BM - BU2 CHECK THE OPERATION OF THE POWER LIFTGATE
- Open and close the power liftgate.
Does the power liftgate operate correctly in both the open and close modes?
Yes GO to BU3 No REFER to: Body Closures . - BU3 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST
- Using a diagnostic scan tool, perform the IPC self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to the Diagnostic Trouble Code (DTC) Chart . No GO to BU4 - BU4 PERFORM THE RGTM (REAR GATE TRUNK MODULE) SELF-TEST
- Using a diagnostic scan tool, perform the RGTM self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to: Body Closures . No GO to BU5 - BU5 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
- Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to: Controller Area Network (CAN) Module Communications Network . No GO to BU6 - BU6 CHECK FOR CORRECT RGTM (REAR GATE TRUNK MODULE) OPERATION
- Ignition OFF.
- Disconnect and inspect the RGTM connectors.
- Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary
- Reconnect the RGTM connectors. Make sure they seat and latch correctly.
- Operate the system and determine if the concern is still present.
Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RGTM. REFER to: Rear Gate Trunk Module (RGTM) . No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.