rear door lock doesnt work vw lt 45
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Filed Under (Chevrolet) by admin on 10-04-2011
Power Door Locks Inoperative Diagnostic Instructions • Perform the Diagnostic System Check – Vehicle prior to using this diagnostic procedure. • Review Strategy Based Diagnosis for an overview of the diagnostic approach. • Diagnostic Procedure Instructions provides an overview of each diagnostic category. Diagnostic Fault Information Circuit Switch Side Supply Voltage Relay Door Lock/Unlock Signal Door Latch Control Driver Door Lock Switch Ground Passenger Front Door Lock Switch Ground BCM Ground 1. Door Lock Malfunction 2. Door Lock Switch Malfunction Circuit/System Description The DR LCK fuse supplies battery positive voltage to the body control module BCM for the door lock system. The BCM supplies and monitors a reference voltage to the door lock switch through the door lock switch lock/unlock signal circuit. The door lock switch also receives a constant ground source. If a door lock switch is placed in the lock position, the reference voltage is taken directly to ground and the BCM senses 0.0 volts on the signal circuit. If a door lock switch is placed in the unlock position, the reference voltage is taken to ground through a 1.5k ohm resistor that is internal to the door lock switches and senses approximately 2.9 volts on the signal circuit. This is how the BCM determines what portion of the door lock switch was activated. The BCM, upon receipt of a door lock switch lock or unlock signal, will switch the appropriate door lock actuator control circuits to battery positive voltage. The opposing side of the door lock actuators are connected to ground internally within the BCM through the other door lock actuator control circuit and the doors will lock or unlock appropriately. Vehicles without keyless entry have two internal drivers in the BCM to control the door lock actuators. All door lock and all door unlock. Vehicles equipped with keyless entry have three internal drivers in the BCM. 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 by itself using the keyless entry transmitter.
Filed Under (Dodge) by admin on 28-12-2010
POWER DOOR LOCKS Power door lock system allows all doors to be locked or unlocked using either front door lock switch. All doors can be mechanically locked or unlocked using respective locking knobs or from outside of vehicle using key. Driver’s or passenger’s door can also be unlocked by actuating inside door handle. On Sebring Convertible, trunk can be unlocked using switch inside vehicle. All 4-door models are equipped with child protection locks on rear doors. Lever is located on inside edge of door, near latch. Moving lever to engage lock will allow rear door to only be opened using outside door handle. On models with anti-theft system, power door lock system is integrated into anti-theft system. See ANTI- THEFT SYSTEMS – SEBRING CONVERTIBLE, SEBRING SEDAN & STRATUS SEDAN article. Locking or unlocking door with key will arm or disarm anti-theft system (if equipped), and cancel or activate illuminated entry feature. An optional central locking system is also a part of anti-theft system. Turning key in driver’s door to unlock position one time will unlock driver’s door. Unlocking passenger’s door with a key or turning driver’s door lock to unlock position 2 times within 5 seconds will unlock all doors. All models are equipped with a door lock inhibit function. Body Control Module (BCM) will ignore command to lock power door locks with ignition switch in ON position and driver’s door open. When door is closed or ignition key is removed, BCM will lock all door locks. All models are also equipped with automatic door locks. Doors will lock automatically when all doors are closed, vehicle speed exceeds 14-16 MPH and Throttle Position (TP) sensor is greater than 8-12 degrees. This feature can be enabled or disabled. If door lock switch is pressed for longer than eight consecutive seconds, BCM will disable door lock relay. Power latches are equipped with a thermal protection system which prevents latches from burning out.
Filed Under (Lexus) by admin on 18-06-2010
POWER DOOR LOCKS All doors can be locked and unlocked from either front door using control switch or door key. When you unlock driver’s door with door key, if you turn key once, only driver’s door will unlock. If you turn key twice within 3 seconds, all doors will unlock. KEY CONFINEMENT PREVENTION SYSTEM If driver leaves key in ignition, opens door, then tries to lock doors using control switch (on door panel), system will not allow doors to be locked. This prevents key from being locked inside vehicle. OPERATION POWER DOOR LOCKS Door Key Switch (Door Key Lock & Unlock Switch) This switch is part of door key cylinder. When lock cylinder is turned to LOCK or UNLOCK position, contacts inside this switch close. Door Lock Control Switch All doors can be locked and unlocked using control switch on driver’s side or passenger’s side. Door Lock Motors Each door contains a door lock motor (an electric actuator) that locks and unlocks door. Door lock motor assembly contains a door unlock detection switch and a door open detection switch.
Filed Under (GM) by admin on 16-04-2011
Note: Pry the inside door handle to door retaining screw cover (1) using a suitable tool. • Remove the inside door handle to door retaining screw cover (1) from the door trim panel (3). • Remove the inside door handle to door retaining screw (2).• Remove the door trim panel to door retaining screws (1). Note: Firmly pull on the armrest handle to release the door trim panel to door retaining clips. • Remove the door trim panel from the door to allow access to door handle cable, door lock cable and courtesy light electrical connectors (if fitted). Note: The door handle and lock cables slide out and lift up to remove from the door trim panel. • Disconnect the inside door handle cable (1) and door lock cable (2) from the door trim panel. • Disconnect the courtesy light electrical connectors (1) from the door trim panel (2) (if fitted). • Remove the door trim panel (2) from the door. Installation Procedure Note: Green retaining clips are along the front edge and white retaining clips are along the back edge. • Make sure that all of the retaining clips are on the door trim panel and not still attached to the sheetmetal. Note: Do not fully install the door trim panel at this stage. The inside door handle cable, door lock cable and courtesy light electrical connector have to be attached first (if fitted). • Position the door trim panel to the door.
Filed Under (Lincoln) by admin on 31-03-2011
Window Regulator, Power Front Door—Town Car Removal 1. CAUTION: When servicing front door power window regulator minus motor (23208), regulator cable tension must not be altered. Cable tension is preset at production. Improper adjustment may result in premature front door power window regulator failure or erratic operation. CAUTION: Be careful not to drill through the window regulator behind inner door panel. Additional repairs may be necessary. If front door window glass (21410) is in the down position and is inoperable, a through f must be taken; if front door window glass is operational, proceed to Step 2. a. Remove front door trim panel (23942) and front door trim shield (237A04). Refer to Section 01-05. b. Disconnect battery ground cable (14301). Refer to Section 14-01. c. CAUTION: Be careful not to strike or scratch front door window glass. Remove three 1/4 inch rivets retaining window regulator electric drive (23394) to inner panel. d. Working through front access hole in inner panel, remove three screws from window regulator electric drive. e. Separate window regulator electric drive from front door power window regulator minus motor. Raise front door window glass by hand and secure using tape. f. Proceed to Step 2. 2. Remove front door window glass as outlined. 3. Disconnect window regulator electric drive wiring connector. 4. Remove two upper front door power window regulator retaining nuts. 5. NOTE: Use care not to enlarge sheet metal holes in the door inner panel. Remove two 1/4-inch rivets retaining front door power window regulator minus motor to inner door panel. 6. Remove front door power window regulator minus motor from front door (20124). Installation 1. Lubricate front door power window regulator minus motor with Teflon® Lubricant E7FZ-19590-A or equivalent meeting Ford specification ESB-M1C111-A as outlined. 2. Install front door power window regulator minus motor into access hole in inner panel. 3. Position front door power window regulator minus motor using upper front door power window regulator studs and tabs on window regulator electric drive mounting bracket. 4. Install rivets retaining front door power window regulator minus motor to door inner panel (1/4-20 x 1/2 inch screw and 1/4-20 nut and washer assemblies or equivalent metric fasteners may be used as alternates). 5. Install two upper front door power window regulator retaining nuts. 6. Install Front Door Window Glass as outlined. 7. Adjust Front Door Window Glass as outlined. 8. Install front door trim shield and front door trim panel. Refer to Section 01-05. Front Door—Crown Victoria, Grand Marquis Removal 1. If front door window glass is in the down position and is inoperable, the following steps must be taken; if front door window glass is operational, go to Step 2. a. Remove front door trim panel and front door trim shield. Refer to Section 01-05. b. Disconnect battery ground cable. Refer to Section 14-01. c. Disconnect window regulator electric drive wires. d. CAUTION: Be careful not to strike or scratch front door window glass because it could break. Remove window regulator electric drive retaining screws through holes. e. Remove window regulator electric drive from front door power window regulator minus motor.