Infiniti 80731-CR001 Motor Assembly-Regulator,L

Removal steps 1. Park on level ground, set parking brake, remove ignition key, and disconnect the negative battery cable; wait a few minutes for systems to power down. 2. Remove door trim and any trim clips or fasteners to gain access to the inner door panel following vehicle-specific procedure. 3. Carefully peel back or remove the moisture/water barrier enough to access the regulator and motor without tearing it. 4. Secure the window glass in place to prevent it falling or moving (use tape, a wedge, or a suction tool); support the glass while you work. 5. Disconnect the electrical connector at the window motor; label connectors if helpful for reassembly. 6. Support the regulator or glass assembly and remove the fasteners that secure the motor to the regulator or door structure; designs vary so remove the appropriate retainers without forcing components. 7. If the motor is removable from the regulator, separate it from the regulator assembly (gear clips or bolts may be used; methods vary). 8. Remove the motor or motor/regulator assembly from the door through the access opening, taking care not to damage the glass, wiring, or door skin. 9. Set aside fasteners and note the orientation and position of parts for reinstallation; inspect wiring and connectors for damage. Installation steps 1. If replacing only the motor, attach the new motor to the regulator, aligning gears or splines as required by the design; secure but do not fully tighten until fit is confirmed. 2. Position the motor or motor/regulator assembly into the door and loosely install the mounting fasteners to hold it in place. 3. Reconnect the motor electrical connector and ensure wiring is routed clear of moving parts and pinch points. 4. Temporarily reconnect the negative battery cable to perform a function test: operate the window up and down to verify smooth movement, correct direction, and that any auto-reverse or limit functions work (reset procedure may be required on some systems). 5. Disconnect the battery again if you need to final-tighten fasteners or adjust alignment; then securely tighten mounting fasteners and re-check secure fit (follow vehicle-specific tightening practices). 6. Reinstall the moisture barrier and door trim, reconnect any switch connectors and trim fasteners, and restore the battery connection if it was left disconnected. 7. Perform a final operational check of the window from all switches and verify there are no abnormal noises, binding, or interference. Repair tip: Photograph fastener locations and connector positions before disassembly, and lightly lubricate window tracks and regulator pivot points with an appropriate silicone or light grease to improve smooth operation.