Test H: The Power Liftgate Does Not Power Open (Power Close Ok)
PINPOINT TEST H: THE POWER LIFTGATE DOES NOT POWER OPEN (POWER CLOSE OK)Normal Operation
If the power liftgate is in the closed position and the conditions are correct, the liftgate/trunk module (LTM) supplies 12 volts to the unlatch/cinching motor on circuit CPR62 (WH/BU), 12 volts to the clutch on circuit CPR69 (BN/BU) and 12 volts to the motor on circuit CPR57 (GN/WH). As the liftgate is moving in the open direction, the LTM monitors the position sensor for door speed to detect obstacles. Once the liftgate is unlatched, the motor and clutch are activated to power open the liftgate.
This pinpoint test is intended to diagnose the following:
- Mechanical binding
- Power liftgate latch
- Power liftgate sector gear switches
- LTM
- Wiring, terminals or connectors
