Test G: Doors Do Not Lock Or Unlock Using Door Lock Touchpad
- Check to see that the key is not in the ignition switch. Check to see that all of the doors are securely closed. Is the key out of the ignition and are all the doors securely closed? If yes, go to next step. If no, remove the key from the ignition switch and close all of the doors securely. If doors still do not lock, go to next step.
- Turn key to ON position. Open any door, then close it. Does the door ajar warning indicator illuminate with the door open and go out with the door closed? If yes, go to next step. If no, go to INSTRUMENT PANELS, ANALOG -- VILLAGER or INSTRUMENT PANEL ELECTRONIC -- VILLAGER articles in ACCESSORIES & EQUIPMENT to diagnose the door ajar circuit.
- Turn key to OFF position. Disconnect the diode junction box center green diode strip located behind the instrument cluster. Disconnect the 20-terminal electronic door lock control processor connector. Measure the resistance of the Blue wire between the 20-terminal electronic door lock control processor connector and ground. Measure the resistance of the Blue wire between the 20-terminal electronic door lock control processor connector and terminal 20 at the diode junction box connector. See CONNECTOR IDENTIFICATION . Is the resistance greater than 10,000 ohms between the electronic door lock control processor and ground, and less than 5 ohms between the electronic door lock control processor and the diode junction box? If yes, go to next step. If no, service Blue wire. See WIRING DIAGRAMS .
- Turn key to OFF position. Disconnect the timer module connector located behind the left hand cowl side trim panel. Disconnect the electronic door lock control processor 20-terminal connector. Measure the resistance of the Green wire between the electronic door lock control processor connector and ground. See CONNECTOR IDENTIFICATION . With the key in the ignition switch, the resistance should be less than 5 Ohms. With the key out of the ignition switch, resistance should be greater than 10,000 Ohms. Are the resistances okay? If yes, go to step 6 . If no, go to next step.
- Turn key to OFF position. Disconnect the ignition key reminder switch connector (the black wire on the ignition switch lock cylinder). Disconnect the 20-terminal electronic door lock control processor connector. Disconnect the timer module connector. Measure the resistance between the Green wire at the 20-terminal electronic door lock control processor connector and the Black wire at the ignition key reminder switch connector. Measure the resistance of the Green wire between the 20-terminal electronic door lock control processor connector and ground. Is the resistance less than 5 ohms between the electronic door lock control processor and the ignition key reminder switch, and greater than 10,000 ohms between electronic door lock control processor and ground? If yes, replace the ignition key reminder switch. See 1995 STEERING FORD MOTOR CO. - STEERING COLUMN article in STEERING. If no, service the Green wire between the electronic door lock control processor and the ignition key reminder switch. See WIRING DIAGRAMS .
- Turn key to OFF position. Disconnect the door lock touchpad connector located in the driver side door. Measure the resistance between the following terminals of the door lock touchpad. See TESTING TOUCHPAD
and Fig 1
.TESTING TOUCHPAD
Buttons Depressed Terminals Resistance (Ohms) 1/2 1-7 Less Than 5 None 1-7 Greater Than 10,000 3/4 2-7 Less Than 5 None 2-7 Greater Than 10,000 5/6 3-7 Less Than 5 None 3-7 Greater Than 10,000 7/8 4-7 Less Than 5 None 4-7 Greater Than 10,000 9/0 5-7 Less Than 5 None 5-7 Greater Than 10,000 Are the resistances okay? If yes, go to next step. If no, replace the door lock touchpad. See DOOR LOCK TOUCHPAD under REMOVAL & INSTALLATION.
- Turn key to OFF position. Disconnect the door lock touchpad connector. Disconnect the 20-terminal electronic door lock control processor connector. Measure the resistance of the Gray/Red, Orange/Black, Light Green/Red, Green/Black and Brown/Yellow wires between the door lock touchpad connector and the 20-terminal electronic door lock control processor connector. Measure the resistance of the same wires between the 20-terminal electronic door lock control processor connector and ground. See CONNECTOR IDENTIFICATION . Are the resistances less than 5 ohms between the door lock touchpad and the electronic door lock control processor, and greater than 10,000 ohms between the electronic door lock control processor and ground? If yes, replace the electronic door lock control processor. See ELECTRONIC DOOR LOCK CONTROL PROCESSOR under REMOVAL & INSTALLATION. If no, service the wire(s) in question. See WIRING DIAGRAMS .