Left Mirror Inoperative In Up/Down Or Left/Right Mode

Disconnect power mirror switch Black, 8-pin connector. Connect test light between power mirror switch terminals "H" (Light Green wire) and "G" (Yellow wire). With left mirror selected, move power mirror switch to UP, then DOWN positions. If test light illuminates in both positions, go to next step. If test light does not illuminate in both positions , replace power mirror switch. See procedures in POWER MIRROR SWITCH under REMOVAL & INSTALLATION.
Connect test light between power mirror switch terminals "H" (Light Green wire) and "F" (White wire). Move power mirror switch to RIGHT, then LEFT positions. If test light illuminates in both positions, replace left power mirror drive unit. If test light does not illuminate in both positions, replace power mirror switch. See POWER MIRROR SWITCH under REMOVAL & INSTALLATION.