Vauxhall Astra J - Condensation drain / various electrical faults | HELLA

Vauxhall

Astra J

Model year: 2010–2012

Engine: all variants

Condensation drain / various electrical faults

If there are any electrical faults in the above vehicles, these may be caused by a faulty or missing condensation drain.

Another cause may be an air distributor that was damaged during production.

A faulty drain may allow water to reach the BCM (Body Control Module), leading to the following faults:

  • Central locking system does not work
  • Wipers do not work
  • Horn activates itself
  • Engine will not start
  • Body systems do not work
  • Various fault codes

Proceed as follows to rectify the problem:

  • Check that the condensation drain is present and whether it is broken
  • If necessary, fit/replace the condensation drain
  • Check the air distributor housing for damage/traces of water and replace if necessary
  • Check the BCM for water ingress and corrosion and replace in the event of water ingress
  • Clear the fault memory
  • Carry out performance check

Important safety notice
The following technical information and tips for practical use have been set up by HELLA in order to offer professional support to automotive workshops in their daily work. The information available here on this website is only to be used by appropriately trained specialist staff.

The reprinting, distribution, reproduction, exploitation in any form and disclosure of the contents of this document, even in part, is prohibited without our express written approval and indication of the source. The schematic illustrations, figures and descriptions are for explanation and presentation of the document text and cannot be used as a basis for installation or design. All rights reserved.

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