Grand Caravan AWD V6-3.8L VIN L (2001)
POWER LIFTGATE SYSTEM
Power Liftgate
The power liftgate (PLG) system is activated through the use of the following: remote keyless entry (RKE), overhead console switches, outside
liftgate handle switch or the DRBIII(R). These inputs are hardwired to the body control module (BCM) and can be monitored with a diagnostic
tool. The BCM will send the message via PCI bus to the power liftgate module (PLGM). The liftgate must be in the full open or full closed
position to operate. Once the BCM sends a button activation message to the PLGM, the module shall read all inputs, outputs and vehicle
conditions to determine whether it shall open, close or inhibit the PLG operation. Once the PLGM determines the vehicle conditions are safe for
operation, the PLGM will initiate a chime for 2 seconds prior to the liftgate activation and 2 seconds during the open or close cycle.
During an opening or closing cycle, the PLGM can detect an obstacle present should it meet sufficient resistance by the hall effect sensors
(integrated in the gear motor assembly GMA).
During an open cycle, multiple liftgate activations (RKE, overhead console, B pillar) are ignored until the liftgate reaches the full open position.
However, during a close cycle, a 2nd liftgate activation (RKE, overhead console, B pillar) will reverse the liftgate to the full open position.
If the engine is cranked during a power open/close the PLG will pause then resume after engine cranking. In addition, if the vehicle is placed in
gear during an open cycle, the PLG shall reverse direction and begin closing. If the vehicle is placed in gear during a closing cycle, the PLG shall
continue closing until fully closed. If the outside handle is activated during an open cycle, the PLG will become a full manual liftgate. If the
outside handle is activated during a close cycle, the PLG shall reverse direction of travel to the full open position.
Diagnostic Features
The PLG can be flashed on vehicle via PCI bus with a DRBIII(R) diagnostic tool. The DRBIII(R) can read all inputs, actuate all outputs, read
module information, and read diagnostic trouble codes. As a reminder, some DTC's can be set during normal PLG operation.
System Inhibitors
1. Battery voltage too high or too low (above 16V, below 9.5V)
2. Vehicle in gear
3. Vehicle speed > 0 MPH
4. Outside temperature too high or too low (above 143 °F, below -12 °F)
5. O/H console lockout will inhibit the B pillar switches only.
6. Liftgate locked will inhibit all interior switches from opening (overhead console). A locked liftgate can be power closed.
7. Pinch Sensor switch stuck shall inhibit the power close feature.
POWER SLIDING DOOR SYSTEM
Power Sliding Door
The Power Sliding Door (PSD) system is activated through the use of the following: Remote Keyless Entry (RKE), overhead console switches, B
pillar switches or the DRBIII(R). These inputs are hardwired to the body control module (BCM) and can be monitored with a diagnostic tool. The
BCM will send the message via PCI bus to the power sliding door module (PSDM). The sliding door must be in the full open or full closed
position to operate. Once the BCM sends a button activation message to the PSDM, the module shall read all inputs, outputs and vehicle
conditions to determine whether it shall open, close or inhibit the PSD operation. During an opening or closing cycle, the PSDM can detect an
obstacle present should it meet sufficient resistance by the hall effect sensors (integrated in the drive motor).
During an open cycle, multiple door activations (RKE, overhead console, B pillar) are ignored until the door reaches the full open position.
However, during a close cycle, a 2nd door activation (RKE, overhead console, B pillar) will reverse the door to the full open position.
If the engine is cranked during a power open/close the PSD will pause then resume after engine cranking. In addition, if the vehicle is placed in
gear during an open cycle, the PSD shall reverse direction and begin closing. If the vehicle is placed in gear during a closing cycle, the PSD shall
continue closing until fully closed.
If the inside or outside handle is activated during an open or close cycle, the PSD will become a full manual sliding door. When the child lock out
switch is ON, the B pillar switches are disabled.
There is only one part number for the power sliding door module (PSDM). The driver sliding door harness has an additional ground circuit which
will identify it as the driver side. This eliminates the need for a left and a right side module.
Diagnostic Features
The PSDM can be flashed on vehicle via PCI bus with a DRBIII(R) diagnostic tool. The DRBIII(R) can read all inputs, actuate all outputs, read
module information, and read diagnostic trouble codes. As a reminder, some DTC's can be set during normal PSD operation.
System Inhibitors
1. Battery voltage too high or too low (above 16V, below 9.5V)
2. Vehicle in gear
3. Vehicle speed > 0 MPH
4. Child locks enabled inhibit the B pillar switch operation
5. O/H console lockout will inhibit the B pillar switches
