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I got chicken gremilns playing with the power locks
Power door locks lock and unlock by itself's and rear window unlocks by it self also and clicking sound behind headlight switch sounds like to live touching together
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The most likely culprit is a faulty actuator. You can test this by having someone activate the rear hatch while listening for a click or sound of some sort. If there is sound but no opening, it indicates a bad latch actuator. If there is no noise, it could be a fuse or wiring issue. You can manually unlock the door by removing the trim, but be careful around the glass latch as there are 2 push pins.
Check the wiring in the boot that runs from the body to the top of the liftgate for broken wires.
You might have to take it to a collision shop. Remove the rear hatch panel to gain access to the latch assembly if it's not responding. If you can't get it open, take it to a collision shop as they deal with these kinds of things regularly.
Door Lock System Components
The power door lock system consists of the following components:
• Driver door module (DDM)
• Passenger door module (PDM)
• Door lock relay--Located in the instrument panel (I/P) fuse block and controls the locking of the rear doors.
• Door unlock relay--Located in the I/P fuse block and controls the unlocking of the rear doors
• Body control module (BCM)
• IP BEC
• Reversible door lock actuators in each door
Driver and Passenger Lock System Operation
The front power door lock switches are integral components of the driver door module (DDM) and passenger door module (PDM). The switches are two-position normally open rocker switches. When placed in either the lock or unlock positions, the switches provide a direct input to the DDM or PDM. The DDM or PDM monitor these inputs and send a LAN message indicating a change in the switch position. Modules, that activate the power door lock motors, receive the LAN message and activate the motor in the appropriate direction to lock or unlock the vehicle doors. The body control module (BCM) upon receipt of a lock or unlock signal will control the rear door lock or unlock relays and also send a LAN message to the DDM and PDM to perform the commanded function.
The modules that activate the power door lock motors are:
• DDM (driver door lock actuator)
• PDM (passenger front door lock actuator)
• BCM (both rear door lock actuators)
The DDM and PDM are directly connected to the respective door lock actuator through the door lock motor lock and unlock circuits. Once a door lock or unlock request has been received, the module will supply battery voltage to one side of the actuator and ground the other, causing the doors to lock or unlock.
The rear passenger doors are controlled by the BCM through the rear door lock/unlock relay which is incorporated onto the printed circuit board in the LH BEC. The BCM controls the unlock relay by providing ground to energize the coil and controls the lock relay by providing battery voltage to energize the relay coil. This energizes the relay and allows voltage to be applied to either the door lock motor lock or unlock circuits. Since the other side of the door lock actuator is connected to the normally closed contacts of the opposing relay to ground, the doors lock or unlock.
It's not the BCM ,more then likely it's that windows switch .
Rear Door (LH or RH) REAR POWER WINDOW SWITCH LH OR RH OPERATION WINDOW UP When the rear power window switch LH or RH is pressed in the up position Power is supplied ? through rear power window switch LH or RH terminal 4 ? to rear power window motor LH or RH terminal 2. Ground is supplied POWER WINDOW SYSTEM GW-17 C D E F G H J K L M A B GW Revision: January 2005 2004 Pathfinder Armada ? through rear power window switch LH or RH terminal 5 ? to rear power window motor LH or RH terminal 1. Then, the motor raises the window until the switch is released. WINDOW DOWN When the rear power window switch LH or RH is pressed in the down position Power is supplied ? through rear power window switch LH or RH terminal 5 ? to rear power window motor LH or RH terminal 1. Ground is supplied ? through rear power window switch LH or RH terminal 4 ? to rear power window motor LH or RH terminal 2. Then, the motor lowers the window until the switch is released. MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH OPERATION WINDOW UP When the main power window and door lock/unlock switch (rear LH) is pressed in the up position Power is supplied ? through main power window and door lock/unlock switch terminal 3 ? to rear power window switch LH terminal 3 ? through rear power window switch LH terminal 4 ? to rear power window motor LH terminal 2. Ground is supplied ? through main power window and door lock/unlock switch terminal 1 ? to rear power window switch LH terminal 2 ? through rear power window switch LH terminal 5 ? to rear power window motor LH terminal 1. Then, the motor raises the window until the switch is released. When the main power window and door lock/unlock switch (rear RH) is pressed in the up position Power is supplied ? through main power window and door lock/unlock switch terminal 5 ? to rear power window switch RH terminal 3 ? through rear power window switch RH terminal 4 ? to rear power window motor RH terminal 2. Ground is supplied ? through main power window and door lock/unlock switch terminal 7 ? to rear power window motor RH terminal 2 ? through rear power window switch RH terminal 5 ? to rear power window switch RH terminal 1. Then, the motor raises the window until the switch is released. WINDOW DOWN When the main power window and door lock/unlock switch (rear LH) is pressed in the down position Power is supplied ? through main power window and door lock/unlock switch terminal 1 ? to rear power window switch LH terminal 2 ? through rear power window switch LH terminal 5 ? to rear power window motor LH terminal 1. Ground is supplied ? to main power window and door lock/unlock switch terminal 3 ? through rear power window switch LH terminal 4 ? through rear power window switch LH terminal 3 ? to rear power window motor LH terminal 1. Then, the motor raises the window until the switch is released
The power windows an power locks are controlled by a module , DDM - driver door module . As far as the locks locking when you put the vehicle into reverse an unlocking when you put the vehicle into park , that's how there are suppose to work , automatic lock an unlock feature . When you put the vehicle into any gear from park the locks should lock . Did she hit window lockout function ?
The power door lock system consists of the following components:
• The driver door module (DDM)
• The passenger door module (PDM)
• The body control module (BCM)
• The driver information center (DIC)
• The rear door lock switch
• The door lock relay
• The door unlock relay
• The liftgate lock relay--utility vehicles with liftgate only
• The reversible door lock actuators in each of the doors and liftgate
• LOCKS 20A fuse (rear lock/unlock relay supply voltage)
• ECC 10A fuse (liftgate lock relay supply voltage .
Programmable Automatic Door Locks
The automatic door lock feature can be programmed to control the door lock system. The automatic door lock feature is factory programmed to have all doors lock and unlock. For detailed instructions on programming the automatic door locks, refer to Vehicle Personalization in Personalization.
When the automatic door lock feature is programmed to control the door lock system, the driver door module (DDM), passenger door module (PDM) and body control module (BCM) will lock the vehicle doors if the following inputs are true:
• Ignition 1 input is active.
• All door jamb switch inputs are inactive.
• Cargo door or liftgate/liftglass ajar inputs are inactive.
• Transmission is shifted out of park.
This automatic door lock function will only occur once per ignition cycle unless, a door jamb switch input changes state to active and back to inactive. Then the DDM, PDM and BCM will lock all doors again.
Once the automatic door lock feature has locked the doors, the BCM will then unlock all the doors when the transmission is shifted into park.
Driver, Passenger and Cargo Door Lock System Operation
The front power door lock switches are integral components of the driver door module (DDM) and passenger door module (PDM). The switches are two position normally open rocker switches. When placed in either the lock or unlock positions, the switches provide a direct input to the DDM or PDM. The DDM or PDM monitors these inputs and sends a Class 2 message indicating a change in the switch's respective position. Modules which activate the power door lock motors receive the Class 2 message and activate the motor in the appropriate direction to lock or unlock the vehicle's doors and liftgate. The rear door lock switch provides a lock and unlock signal to the body control module (BCM). The BCM upon receipt of a lock or unlock signal will control the rear door lock relays and also send a Class 2 message to the DDM and PDM to perform the appropriate function.
The modules which activate the power lock motors are:
• The DDM (driver door lock actuator).
• The PDM (passenger front door lock actuator).
• The BCM (both rear door lock actuators and cargo door/liftgate).
The DDM and PDM are directly connected to the respective door lock actuator through the door lock motor lock and unlock circuits. Once a door lock or unlock request has been received, the module will supply battery voltage to one side of the actuator and ground the other causing the doors to lock or unlock.
The rear passenger and cargo doors differ slightly in that they use lock and unlock relays. The relays supply and coil sides receive a constant voltage through the battery voltage supply circuit. The normally closed contacts are connected to ground and the control side is connected to the BCM. Once a door lock or unlock request has been received by the BCM, the BCM will ground the control side of the appropriate relay. This energizes the relay and allows voltage to be applied to either the door lock motor lock or unlock circuits. since the other side of the door lock actuator is connected to the normally closed contacts of the opposing relay to ground, the doors lock or unlock.
The rear doors probably dont come w accuators in them. Meaning that the rear doors alot of times don't have power options. If you are certain that your rear doors have factory power locks then I would say it's a wire somewhere...did you try a double click of the unlock button. My two door chevy truck unlocks the driver door with one click and the pass door requires a double click. Hope this helps !
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