312000758 - Q001 SUN ROOF NOT WORKING

When the relevant control is operated, the sunroof does not move at all or moves jerkily.
Test results
0PRELIMINARY CHECKSAll OKProblems encounteredOperation
Carry out the sunroof electronic control unit initialisation procedure    See descriptions 7030 SUN ROOF/GLASS PANEL , checking to see that the roof moves.End of diagnosisThe roof does not move.Move on to Step 1.
1SUNROOF ELECTRICAL SUPPLY CIRCUIT CHECKAll OKProblems encounteredOperation

Check the following, in order:

  • sunroof supply fuse;
  • sunroof supply relay;
  • sunroof electronic control unit;
  • connection between sunroof relay, fuse and electronic control unit
    See E3060 SUN ROOF

  • correct power supply to the motor.
Move on to Step 21. Connections not correct2. Component defective3. Electronic control unit not operating4. The motor is not correctly supplied.1. Repair the connections2. Replace the component involved (in the case of a fuse, find out what caused it to blow).3. Replace the electronic control unitOp. 7030B66 SUN-ROOF MOVEMENT ECU - R+R4. Supply the motor directly from the battery bypassing the Body Computer (the cable terminals must be firmly secured to the battery poles). The battery must be charged to >= 13 Volt. Replace the motor if it does not work.    Op. 7030B70 SUN ROOF MOVEMENT MOTOR - R+R
2SUNROOF OPERATION SELECTOR CORRECT OPERATION CHECKAll OKProblems encounteredOperation
Check the electrical control circuit of the sunroof operation selector.Move on to Step 3Control selector not operatingReplace the control selector.Op. 7030B64 SUN ROOF CONTROL SWITCH - R+R
3CHECK THE TORQUE REQUIRED TO MOVE THE SUNROOFAll OKProblems encounteredOperation
Use a torque wrench to check the torque required to move the sunroof by hand (70 Nm max with 100 mm lever).Move on to Step 41. Incorrect effort (more than 100 Nm)2. Incorrect effort (between 70 and 100 Nm)1. Move on to Step 42. Roll the roof by hand.
4SUN ROOF MOTOR CHECKAll OKProblems encounteredOperation
Check the operation of the sun roof operating motor:

In particular, check:

  • motor pinion status;
  • sunroof power supply relay control rack status;
Move on to Step 5Faults in motor componentsReplace the motor    Op. 7030B70 SUN ROOF MOVEMENT MOTOR - R+R
5FOREIGN BODIES CHECKAll OKProblems encounteredOperation
Check for foreign bodies inside the sunroof mechanisms (or guides).End of diagnosis1. Foreign bodies present2. No foreign bodies present1. Remove any foreign bodies.2. Replace the frame assembly.Op. 7030B90 SLIDING ROOF FRAME - R R