Sunroof
After-sales operations
In this manual: Sunroof
~3min read
FAULT READING
The following faults can be read using the diagnostic tool:
- supply voltage out of limits,
- sunroof control unit faulty,
- invalid vehicle speed information,
- mechanical link broken,
- sunroof switch faulty,
- sunroof motor faulty,
- sunroof initialisation failed.
READING PARAMETERS
The following parameters can be read using the diagnostic tool:
- sunroof configuration,
- switch position,
- anti-pinch trigger count,
- anti-pinch trigger position.
ACTUATOR TEST
The following tests can be performed using the diagnostic tool:
- full cycle in vent and opening of the sunroof,
- sunroof control to a selected position,
- sunroof switch illumination for 5 seconds.
CODING
The following parameters can be coded using the diagnostic tool:
| PARAMETER LIST | DEFINITIONS |
| Closing on locking | Activation or deactivation of closing when the window and sunroof control button on the RF remote control is pressed |
| Rain closing | Activation or deactivation of automatic closing in rain |
| Limited opening in vent position | Activation or deactivation of the vent function, linked to vehicle speed |
| Vent position recall | Activation or deactivation of manual override of the "speed-linked vent" function |
DEGRADED MODES
When the control unit detects a fault, it switches to degraded mode.
Only some functions are available.
Sunroof malfunctions are stored in memory.
Faults can be read using the diagnostic tool.
Operation in degraded mode.
| FAULTS | SUNROOF OPERATION |
| Sunroof motor overheating | Sunroof movement is no longer possible if motor overheating is detected. The motor resets automatically. |
| Sunroof switch stuck pressed | If the sunroof switch remains stuck in the pressed position for more than 15 seconds, the system ignores all commands until the sunroof switch is released. |
| Internal component blocked | If an internal component (e.g. relay) remains blocked for more than 100 ms after the action has stopped, the sunroof electronics cut power to the motor until the component is released. |
| Software end stop below mechanical upper stop | The sunroof operates normally except that the anti-pinch detection zone is offset. |
| Software end stop above mechanical upper stop | The sunroof operates in degraded mode. The software end stop is disabled until the next initialisation. |
| Short circuits, open circuits, earth faults on the VAN network | Automatic opening or closing of the sunroof is not allowed. Manual opening of the sunroof is permitted. Initialisation permitted. Closing is only possible while holding the sunroof switch pressed. |
| Battery partially discharged and engine stopped | Only closing of the sunroof is possible when locking or super-locking the openings. |
Test yourself
A quick Citroen C5 Aircross quiz: every answer comes with an explanation and a link to the manual page.
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