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

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