Illuminated Entry Does Not Operate With Remote Transmitter (Ranger)

1. Press UNLOCK button on remote transmitter to unlock doors and turn interior lights on. Press LOCK button on remote transmitter within 20 seconds of pressing UNLOCK button to lock doors and turn interior lights off. If illuminated entry does not work as specified, go to next step. If illuminated entry works as specified, systen is operating properly at this time. If driver's door does not lock or unlock, repeat this step to ensure transmitter button was pressed. If driver's door still will not lock or unlock, go to REMOTE TRANSMITTER DOES NOT OPERATE (RANGER) test.
2. Using circuit No. 570 Black/White wire as signal ground, measure voltage by backprobing Brown/Light Green wire at RAP module 22-pin connector. While still measuring voltage, press UNLOCK button on remote transmitter. If MIN voltage is less than 1.3 volts when pulse was transmitted, leave meter connected and go to next step. If MIN voltage is greater than 1.3 volts when pulse was transmitted, clear MIN voltage and repeat this step to confirm high voltage. If high voltage is still present, replace RAP module, then retest system.
3. With meter still connected from previous step, measure illuminated entry pulse widths while pressing UNLOCK button on remote transmitter. If pulse widths are between 190 and 210 milliseconds, go to next step. If pulse widths are not between 190 and 210 milliseconds, replace RAP module, then retest system.
4. Check Brown/Light Green wire circuit for open or shorts between RAP module and GEM module. If wiring is okay, go to MODULE COMMUNICATIONS NETWORK article to diagnose GEM module for illuminated entry operation. See following list.
   • Ranger: MODULE COMMUNICATIONS NETWORK
   • Explorer/Mountaineer: MODULE COMMUNICATIONS NETWORK

Repair Brown/Light Green wire as necessary.