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S-Class (W220) 1999-2006: S 320 CDI, S 320, S430, S 500, S 600

SRS Light 91A3

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Old Apr 19, 2015 | 07:20 PM
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Brazilian209
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2003 S600
SRS Light 91A3
Hello everyone. I'm in the process of slowly fixing my S600 from all the faults. I'm getting the 91A3 Error saying resistance value in the ignition circuit containing component R46/1 Front passenger buckle ETR Squib its too high. I tried cleaning out the buckles with electrical cleaner like many have said before. I can clear the code with my scanner but it comes back on right away. Anyone know what I need to replace/do next. This is the only fault I have left and would like to get it taken care of myself. Thanks in advance.
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Old Apr 20, 2015 | 06:09 PM
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2003 S600
After poking around some under the seat I found the r46/1 connector and noticed they have been repaired before. I checked to make sure they had a good connection and sprayed electrical cleaner in the connector itself and let it dry. Then I erased the code with my scanner and so far so good. Light has stayed off after a day so hopefully they were just dirty and the light stays off.
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Old Apr 20, 2015 | 07:14 PM
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S-series 2003 S500 4matic
Congrats on what looks like the fix and thanks for taking the time to post your results.

What brand/ model scanner are you using?
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Old Apr 20, 2015 | 07:18 PM
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Originally Posted by MikeKerr7
Congrats on what looks like the fix and thanks for taking the time to post your results.

What brand/ model scanner are you using?
Just one if the iCarsoft i980 I think it's called.
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Old Apr 21, 2015 | 07:05 AM
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S-series 2003 S500 4matic
Originally Posted by Brazilian209
Just one if the iCarsoft i980 I think it's called.
Thanks, did some checking on the i980 and the reviews are good! I am ordering one today.
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Old Apr 21, 2015 | 07:08 AM
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Originally Posted by MikeKerr7
Thanks, did some checking on the i980 and the reviews are good! I am ordering one today.
Honestly for the price you can't beat it. I like it a lot.
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