Chrysler Colt/Vista 1990-1993 Repair Information

Power Door Locks

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GENERAL DESCRIPTION



The power door locking system consists of switches, actuators and relays. Control switches are used to operate the system. Actuators are used to raise and lower the door lock buttons. These actuators are mounted inside the door assembly and are electrically operated once the switch is depressed. A control unit or functional relay is used to allow the system to regulate current, to function and to align all the actuators and switches with one another.

Some vehicles incorporate a central unlocking system that automatically unlocks all the doors of the vehicle once the key is inserted in the door from the outside of the vehicle.

COMPONENT REPLACEMENT



See Figures 1 and 2



Click image to see an enlarged view

Fig. Fig. 1: Central locking system - 1990-92 Colt hatchback and sedan



Click image to see an enlarged view

Fig. Fig. 2: Door locks - 1990-91 Vista

Door Lock Switch
  1. Disconnect the negative battery cable.
  2.  

  1. Remove the door trim panel and waterproof seal.
  2.  
  3. Disconnect the electrical connector and remove the switch.
  4.  
  5. Installation is the reverse of removal.
  6.  

Door Lock Actuator
VISTA FRONT
  1. Disconnect the negative battery cable.
  2.  
  3. Remove the door trim panel and waterproof seal.
  4.  
  5. Disconnect the rod to the door latch and the electrical connector.
  6.  
  7. Remove the actuator retaining screws and remove the actuator.
  8.  

To install:
  1. Assemble the rod holder to the lever of the door lock actuator, and install the actuator to the door panel.
  2.  
  3. Move the lock rod and door lock actuator to the lock position, and assemble the rod holder and lock rod.
  4.  
  5. Connect the electrical connector and install the door panel.
  6.  

VISTA REAR
  1. Disconnect the negative battery cable.
  2.  
  3. Remove the door trim panel and waterproof seal.
  4.  
  5. Disconnect the rod to the door latch and the electrical connector.
  6.  
  7. Remove the actuator retaining screws and remove the actuator.
  8.  

To install:
  1. Assemble the clamp to the lever of the door lock actuator, and install the actuator to the door panel.
  2.  
  3. Move the inside lock rod and door lock actuator to the unlock position, and assemble the clamp to the inside lock rod.
  4.  
  5. Connect the electrical connector and install the door panel.
  6.  

COLT
  1. Disconnect the negative battery cable.
  2.  
  3. Remove the door trim panel and waterproof seal.
  4.  
  5. Disconnect the rod to the door latch and the electrical connector.
  6.  
  7. Remove the actuator retaining screws and remove the actuator.
  8.  
  9. Installation is the reverse of removal.
  10.  

Door Lock Relay and Control Unit
VISTA
  1. Disconnect the negative battery cable.
  2.  
  3. Locate the power door lock relay and the door lock control unit, which are under the center of the instrument panel, attached to the front of the MPI and ELC-AT control units.
  4.  
  5. Disconnect the electrical connection and remove the retaining screw.
  6.  
  7. Installation is the reverse of removal.
  8.  

COLT
  1. Disconnect the negative battery cable.
  2.  
  3. Remove the left side cowl trim panel.
  4.  
  5. Disconnect the electrical connection and remove the door lock relay and/or control unit.
  6.  
  7. Installation is the reverse of removal.
  8.  

 
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