PINPOINT TEST D : The Power Liftgate Reverses During a Power Close Operation
- D1 CHECK THE MANUAL OPERATION OF THE LIFTGATE
- Turn the power liftgate off (disable) from the message center.
- While manually opening and closing the liftgate, check the liftgate for:
- liftgate/wedge alignment
- strut operation (struts should push liftgate open when beyond half open)
- power liftgate latch (should latch completely)
Does the liftgate open and close correctly?
Yes If the liftgate reverses near the midpoint of travel, GO to D2. If the liftgate reverses near or at the latch, GO to D3. No REPAIR and ALIGN as necessary. Refer to Liftgate Alignment . - D2 CHECK THE LIFTGATE POSITION SENSOR (OPT_SEN_1) AND (OPT_SEN_2) PIDs
- Ignition ON.
- Open the liftgate to the full open position.
- Using the scan tool, view LTM PIDs.
- Monitor the LTM PIDs OPT_SEN_1 and OPT_SEN_2 while slowly closing the liftgate.
Do both of the PID values alternate from ACTIVE to INACTIVE while the liftgate is moving?
Yes GO to D3. No GO to Pinpoint Test K . - D3 CHECK THE DETENT AND FORKBOLT SWITCH PIDs
- Using the scan tool, view the LTM PIDs.
- Operate the liftgate manually while monitoring the LTM PIDs :
- Detent Switch Status (DETENTSW)
- Forkbolt Switch Status (FORKBLT_S)
- Forkbolt Secondary Switch (FKSWSEC)
- Begin with the liftgate in the open position, then slowly close the liftgate into each of the latch positions specified.
Liftgate Latch Position DETENTSW FORKBLT_S FKSWSEC Fully unlatched Inactive Active Active Primary Active Inactive Inactive
Do the switch states agree with the table?
Yes GO to D4. No GO to Pinpoint Test L . - D4 CHECK FOR CORRECT LTM OPERATION
- Ignition OFF.
- Disconnect and inspect all LTM 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 all the LTM 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 TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new LTM. Refer to Liftgate/Trunk Module (LTM) . 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.