Checking Sunroof Operation
Checking sun roof operation
Calibrating the sun roof module (SRM)
To ensure that the sun roof is correctly calibrated, try recalibrating it.
Then test sun roof operation.
Other information
- Sun roof module (SRM), calibrating Programming and Relearning
Can the sun roof be operated?
Yes - Checking operation
No - Checking the mechanism
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Checking operation
Check that the sun roof makes smooth movements during operation.
Is the sun roof function OK?
Yes - Checking sun roof closure
No - Checking cables
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Checking sun roof closure
Check that the sun roof closes properly and tightly.
Is the sun roof function OK?
Yes - No Fault Found
No - Checking closure
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Checking the mechanism
Check whether the mechanism moves during sun roof operation.
Does the mechanism move?
Yes - Checking sun roof installation
No - Checking voltage
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Checking sun roof installation
Check that the sun roof is properly mounted.
Remedy as necessary.
Other information
- For checking sun roof installation: Sun roof, replacing Sunroof, Replacing
Continue - Functionality check
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Checking voltage
- Ignition on.
Check the voltage to the motor. It should be 9-16 V.
Is the voltage OK?
Yes - Checking sun roof installation
No - Checking voltage
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Checking sun roof installation
Check that the motor is properly installed. If no fault is found, replace the motor.
Remedy as necessary.
Other information
- Electric motor, sun roof, replacing Service and Repair
Continue - Functionality check
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Checking voltage
- Ignition on.
Check the voltage to the sun roof module (SRM). Voltage between #1A and #10A should be between 9-16 V.
Other information
- Signal specification Signal Specification, Upper Electronic Module (UEM)
Is the voltage OK?
Yes - Checking cables
No - Checking cables and battery voltage
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Checking cables
- Ignition off
Check cables and connectors to the motor. If no fault is found, replace the sun roof module (SRM).
Remedy as necessary.
Other information
- Sun roof module (SRM), replacing Service and Repair
- Checking wiring and terminals Checking Wiring and Terminals
Continue - Functionality check
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Checking voltage
- Ignition on.
Check the voltage to the sun roof switch. It should be 9-16 V.
Other information
- Signal specification Signal Specification, Upper Electronic Module (UEM)
Is the voltage OK?
Yes - Checking cables and battery voltage
No - Checking cables
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Checking cables and battery voltage
- Ignition on.
Check the battery voltage to the sun roof module (SRM).
Check the fuse:
- 11C/34 (V70/X70).
- 11C/26 (XC90).
Check cables and connectors for contact resistance and open-circuit.
Remedy as necessary.
Other information
- Signal specification Signal Specification, Upper Electronic Module (UEM)
- Checking wiring and terminals Checking Wiring and Terminals
Continue - Functionality check
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Checking cables
- Ignition off
Check the cables and connectors of the sun roof module (SRM) for contact resistance and open-circuit.
Remedy as necessary.
Other information
- Switch sun roof, replacing Service and Repair
- Checking wiring and terminals Checking Wiring and Terminals
Continue - Functionality check
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Checking cables
- Ignition on.
Check that the motor runs smoothly. Replace the motor as necessary.
Check that the sun roof opens properly. It should take approx. 6 seconds for the sun roof to completely open from the closed position. Check the mechanism as necessary. Clean and lubricate the rail.
Check the mechanism, rails and drive for unevenness. Replace the drive and/or mechanism as necessary.
Remedy as necessary.
Other information
- Electric motor, sun roof, replacing Service and Repair
- Mechanism / mechanical cable sun roof, replacement Service and Repair
Continue - Functionality check
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Checking closure
- Ignition on.
When closing, check if the sun roof stops or returns to the open position.
Does the sun roof stop at the wrong position?
Yes - Checking the sun roof
No - Checking the mechanism
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Checking the sun roof
Try recalibrating the sun roof module (SRM).
Check the function of the sun roof motor. Replace the motor as necessary. If the motor works properly, check the sun roof mechanism for friction-free travel and blockage.
Hint: If there is a problem with ATS (pinch protection function), the cause of the fault is usually mechanical. It is therefore important to perform a comprehensive check of the sun roof mechanics. If the cause of the fault is not found, replace the control module.
Remedy as necessary.
Other information
- Sun roof module (SRM), calibrating Programming and Relearning
- Electric motor, sun roof, replacing Service and Repair
- Sun roof module (SRM), replacing Service and Repair
Continue - Functionality check
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Checking the mechanism
- Ignition off
Check the sun roof mechanism.
Remedy as necessary.
Other information
- Mechanism / mechanical cable sun roof, replacement Service and Repair
Continue - Functionality check
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Functionality check
- Ignition on.
Check that sun roof function is OK. Check that the sun roof operates and closes properly.
Is the sun roof function OK?
Yes - Troubleshooting procedure complete
No - Trouble-shooting information
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Trouble-shooting information
Information
Fault-tracing information
The fault should be diagnosed and remedied. Since this is not the case the fault-tracing process has failed.
Complete the fault-tracing for those fault or try again.
Do you want to terminate fault-tracing at this time?
Yes - FAULT-TRACING FAILED
No - Attempt New Test
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Attempt New Test - Calibrating the sun roof module (SRM)
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