To check the wiper motor circuit, ensure the battery is fully charged and in good condition if the wipers operate slowly, and inspect for binding linkage and pivots, lubricating or repairing as necessary; if the issue persists, replace the motor. For wiper motor replacement, start by removing the windshield wiper arm retaining nut covers and nuts, marking the position of each wiper arm relative to its splined shaft before removal. Next, take off the hood seal and cowl covers, then remove the windshield wiper linkage/motor assembly mounting bolts and disconnect the electrical connector from the motor. Mark the relationship of the linkage arm to the wiper motor shaft and base plate, then separate the linkage from the motor by prying apart the spherical bearing halves and loosening the arm retaining nut. Remove the mounting bolts to detach the motor from its bracket, ensuring to grease the moving parts before installing the linkage. Installation follows the reverse order, aligning the marks made during disassembly, and finally, turn on the windshield wipers to verify correct operation in all modes. For the rear window wiper motor, open the hatch and remove the hatch trim panel, then take off the wiper arm retaining nut cover and nut, marking the wiper arm's position before removal. Disconnect the electrical connector, remove the three mounting bolts, and take out the rear window wiper motor, with installation being the reverse of removal.