Sunroof Motor

This procedure covers removal and replacement of the sunroof motor assembly on 2014-2019 Toyota Corolla models equipped with a power sunroof.

Warnings

Tools required

Parts

• Sunroof motor assembly × 1 — Use OEM specification
• Headliner trim clips (if damaged) × 4 — Use OEM specification

Preparation

1. Park vehicle on level surface and engage parking brake
2. Ensure sunroof is fully closed and tilted to the flat position
3. Turn ignition off and remove key
4. Disconnect negative battery terminal and wait 3 minutes for airbag system to discharge
5. Cover front seats with protective blankets to prevent damage from tools or debris
6. Clean sunroof area to prevent debris from falling into mechanism

Procedure

1. 1

   Remove overhead console and front dome light assembly
   Using trim removal tools, carefully pry down the front dome light assembly from the headliner. Disconnect electrical connectors for dome lights and sunroof switch. Remove Phillips screws securing the overhead console (typically 2-3 screws). Lower the console and disconnect any remaining electrical connectors including map lights.
2. 2

   Remove sunroof switch assembly
   Disconnect the sunroof switch electrical connector. Remove the switch assembly from the overhead console housing. This provides access to wiring that routes to the motor.
3. 3

   Remove front section of headliner trim
   Locate and remove the headliner trim clips near the sunroof opening. Carefully pull down the front portion of the headliner approximately 6-8 inches to access the sunroof cassette. Use masking tape to hold headliner in position if needed. Be extremely careful not to crease or damage the headliner material.
4. 4

   Access sunroof motor mounting area
   Locate the sunroof motor assembly on the driver side of the sunroof cassette frame. It is mounted to the side rail mechanism. Trace the wiring harness from the motor to the electrical connector. You may need to remove an access cover or trim panel secured by Phillips screws to fully expose the motor.
   Torque spec

   Cover Screws10 Nm (8 lb-ft)
5. 5

   Disconnect sunroof motor electrical connector
   Locate the motor electrical connector near the motor assembly. Press the locking tab and disconnect the connector. Note the routing of the wiring harness for reinstallation.
6. 6

   Mark motor position and cable alignment
   Before removing mounting bolts, use a marker or masking tape to mark the exact position of the motor on the mounting bracket and the position of the drive cable connection. This ensures proper alignment during reinstallation and prevents sunroof calibration issues.
7. 7

   Remove sunroof motor mounting bolts
   Remove the motor mounting bolts securing the motor to the sunroof cassette frame. There are typically 2-3 mounting bolts. Support the motor while removing the final bolt to prevent it from falling.
   Torque spec

   Module Mounting Bolts8 Nm (6 lb-ft)
8. 8

   Disconnect drive cables from motor
   Carefully disconnect the sunroof drive cables from the motor assembly. Note the orientation and connection method. Some cables may have clips or set screws that need to be loosened. Mark left and right cables if applicable to prevent incorrect reinstallation.
9. 9

   Remove sunroof motor assembly
   Carefully extract the motor assembly from the sunroof cassette, maneuvering it past any obstructions. Inspect the mounting location for debris or damage. Clean the mounting surface if necessary.
10. 10

    Install new sunroof motor assembly
    Position the new motor assembly in the mounting location, aligning it with the marks made during removal. Ensure the motor is oriented correctly with drive cable connections accessible. Hand-thread the mounting bolts to hold the motor in position before final tightening.
11. 11

    Connect drive cables to new motor
    Reconnect the sunroof drive cables to the motor assembly, ensuring they are properly seated and oriented according to your reference marks. Tighten any cable retention clips or set screws securely. Verify cables move freely without binding.
12. 12

    Secure motor mounting bolts
    Tighten the motor mounting bolts to the specified torque in a cross pattern if multiple bolts are present. Verify the motor is firmly seated against the mounting surface and does not move.
    Torque spec

    Module Mounting Bolts8 Nm (6 lb-ft)
13. 13

    Reconnect electrical connector and reinstall trim
    Connect the motor electrical connector, ensuring it clicks into place securely. Reinstall any access covers or trim panels removed earlier. Tighten cover screws to specification.
    Torque spec

    Cover Screws10 Nm (8 lb-ft)
14. 14

    Reinstall headliner and overhead console
    Carefully press the headliner back into position, ensuring all trim clips are properly seated. Reconnect all electrical connectors to the overhead console, sunroof switch, and dome lights. Secure the overhead console with Phillips screws. Reconnect the dome light assembly.
15. 15

    Reconnect battery and initialize sunroof
    Reconnect the negative battery terminal and tighten to specification. Turn the ignition to ON position. Perform sunroof initialization by pressing and holding the CLOSE button until the sunroof fully closes, then continue holding for 5-10 seconds until initialization completes (sunroof may move slightly). Test all sunroof functions including tilt and slide operations.
    Torque spec

    Battery Terminal Bolts6 Nm (4 lb-ft)

Reassembly

1. Ensure all electrical connectors are fully seated with audible clicks
2. Verify headliner trim clips are properly secured without gaps
3. Check that overhead console is flush and all switches operate correctly
4. Confirm no tools or parts remain in the headliner area before final closure

Verification

• With ignition ON, test sunroof TILT function in both up and down positions
• Test sunroof SLIDE function through full range of motion from closed to fully open
• Verify sunroof stops automatically at the fully closed and fully open positions
• Test AUTO-CLOSE function by pressing close button briefly
• Check for unusual noises during operation indicating cable binding or misalignment
• Verify sunroof closes completely flush with roof panel with no gaps
• Confirm all dome lights and overhead console switches function properly
• Check for water leaks by performing a controlled water test around the sunroof seal

Related trouble codes on this vehicle

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