Test 2: Express Down Inoperative
NOTE:
Improper operation of express down function may occur if excessive effort is necessary to move window up and down. This may be caused by an improperly wound window regulator spring or worn or misadjusted regulator.
NOTE:
After any repair is made, perform system check. See SYSTEM CHECK
under TROUBLE SHOOTING.
- Perform system check. See SYSTEM CHECK under TROUBLE SHOOTING. Go to next step.
- Disconnect power window control module Black 4-pin connector. Power window control module is located behind door trim panel, in front of left front door. Turn ignition switch to RUN position. Using DVOM, measure voltage between ground and power window control module 4-pin connector terminal "A" (Brown wire). If battery voltage exists, go to next step. If battery voltage does not exist, repair open in Brown wire to power window control module. See WIRING DIAGRAMS .
- Using DVOM, measure voltage between ground and power window control module 4-pin connector terminal "C" (Dark Blue wire). Press left front window switch to UP position on master switch assembly while observing voltage reading. If battery voltage exists, go to next step. If battery voltage does not exist, repair open in Dark Blue wire to power window control module. See WIRING DIAGRAMS .
- Close left front window. Inspect window regulator counterbalance for proper winding. See Fig 1 . If spring winding is correct, go to next step. If spring winding is incorrect, rewind spring.
- Replace power window control module. See POWER WINDOW CONTROL MODULE under REMOVAL & INSTALLATION.