Question about 2005 Dodge Grand Caravan
The remote will lock and unlock the rear door but not the driver and passenger doors. When disconnected the battery for few hours and reconnected it back the door lock system worked fine for a day or two. What should I do?
Apparently the receiver has separate outputs for the passenger/driver's door and the hatch.
I don't know where the receiver is located in your Caravan but it has become intermittant and needs either repair or replacement.
The electronics involved are worth about $5 but I'm afraid you will pay far more for it since it is proprietary and the dealer can put just about any price on they wish.
I would 'shop' that replacement cost via phone before turning it over to any dealer. They will compete if they know you are paying attention.
This could be a DIY job but you will need an aftermarket service manual from Chilton or Haynes; about $20-$30 US, otherwise you may have a long search to see where they have installed it. I'd bet on the removal of a few screws and unplugging one or more connectors to do the swap.
Posted on Jan 02, 2009
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Posted on Jan 02, 2017
Tips for a great answer:
Passenger front door lock switch
LH rear door lock switch
RH rear door lock switch
LH middle door lock switch (w/ V4U)
RH middle door lock switch (w/ V4U)
Driver door switch assembly (DDSA)
Driver door module (DDM)
Passenger front door module (PDM)
LH rear door module (LRDM)
RH rear door module (RRDM)
Left middle door module (LMDM) (w/ V4U)
Right middle door module (RMDM) (w/ V4U)
Driver door lock actuator
Passenger front door lock actuator
LH rear door lock actuator
RH rear door lock actuator
LH middle door lock actuator (w/V4U)
RH middle door lock actuator (w/ V4U)
Driver door cylinder unlock switch
Rear integration module (RIM)
DRVMDL fuse (10-amp)
PASS MDL fuse (10-amp)
RRDR MDL fuse (10-amp)
Class 2 serial data link
Sep 27, 2016 | 2002 Cadillac Deville
DOOR LKS fuse
Driver door lock actuator
Driver door lock switch
GMLAN serial data link
Keyless entry transmitter
Passenger door lock actuator
Passenger door lock switch
Remote control door lock receiver (RCDLR)
The DR LCK fuse supplies battery voltage to the body control module (BCM) for the power door lock system. The BCM supplies and monitors a reference voltage to the driver and passenger door lock switches through the door lock switch lock/unlock signal circuit. Each door lock switch receives ground at G300 which is also the ground for the door lock and unlock relays located in the BCM. When a door lock switch is placed in the lock position, the reference voltage is switched to ground and the BCM senses 0.0 volts on the door lock/unlock signal circuit. When a door lock switch is placed in the unlock position, the reference voltage is switched to ground through a 1.5k ohm resistor that is internal to each of the door lock switches and the BCM senses approximately 2.9 volts on the door lock/unlock signal circuit. The BCM interprets what position the activated door lock switch was placed in based on the voltage drop.
The BCM, upon receipt of a lock or unlock switch signal, will switch the appropriate door lock/unlock relay coil control circuit to ground causing the appropriate door lock/unlock relay to energize. With the relay energized, voltage is applied to the door lock actuator control circuit causing the door to either lock, or unlock depending on what command was received from the power door lock switch or remote control door lock receiver (RCDLR). When a power door lock/unlock relay is not energized, the switch contacts are normally grounded through the BCM which provides ground to the appropriate door lock actuator for the lock/unlock function being performed. The power door lock/unlock functions are performed by reversing the flow of voltage through the door lock actuator control circuits. The BCM has three internal drivers for the power door lock system. Driver door unlock, passenger door unlock and all door lock. This is done to isolate the driver door lock actuator so it can be unlocked separately from the passenger door. For additional information concerning keyless entry, refer to Keyless Entry System Description and Operation.
This is one you may want to take to dealer or some other ASE certified repair shop ! To do this right you need a Tech 2 scan tool !
Ignition ON, observe the scan tool Door Lock Switch parameter while using the driver and passenger door lock switches. The parameter should change from Idle to Lock and Unlock.
If the value does not change, refer to Door Lock Switch Malfunction.
Command the doors to LOCK and UNLOCK with the scan tool, the door lock actuators should LOCK and UNLOCK when changing between the commanded states.
If one or more doors do not LOCK or UNLOCK, refer to Door Lock Malfunction.
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Doors not getting open with remote or key problem,there are help
links provided below.Click the link below to go through its
procedure and troubleshoot the problem:----
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