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2000 STS in Poland
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52 Posts
Discussion Starter #1
Gentlemen.

The system of automatic activation of lights took over the lighting of the car - I can not manually turn on the headlights, only the dusk sensor activates them. I searched the forum, but I did not find a specific case similar to mine. What to check first?

Thank you. Jack
 

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Super Moderator
White Diamond '03 DHS (with DTS floor shift)
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86,325 Posts
Always post code definitions along with the codes. No one has them memorized yet.
 

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2000 STS in Poland
Joined
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52 Posts
Discussion Starter #3
Excuse me. I am already correcting.

DTC B2420 - Dusk Delay Container Failure

DTC B2422 - Interior lamp rheostat failure

Can airflow failure be related to the IPM? Damn ... I don't even know what it looks like, where to look for it ... Or maybe it's not caused ...

If not you - then probably nobody ...
 

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Master of the Dark Art of Diagnostics
2003 DHS - two-2002 DHS, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
Joined
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18,921 Posts
regarding your codes -
B2420 - Twilight Delay Pot Failure -
B2422 - Interior Lamp Rheostat Failure -


these are both within the headlight switch assembly - meaning -
you probably need to replace the headlight switch -
574576


1998 through 2004 Seville use the same part -
there are two different types -
WITH fog lights (the small square button on the upper right corner) -
OR WITHOUT fog lights -
 

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2000 STS in Poland
Joined
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52 Posts
Discussion Starter #7
Please write how to remove the light switch panel. Losing a plastic tool does nothing ...
 

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Master of the Dark Art of Diagnostics
2003 DHS - two-2002 DHS, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
Joined
·
18,921 Posts
Please write how to remove the light switch panel. Losing a plastic tool does nothing ...
=========================
there are no nuts/bolts/screws that hold the headlight switch in place
it is simply pushed in -

remove the side panel -
then push from the back and use a wide blade screwdriver to GENTLY pry it out from the front -
 
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