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Old 30-03-2011   #1
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Drivers Airbag Light - Fault code P003C Drivers Side Front Impact Sensor

Hi all

I occasionally get the drivers airbag warning light coming on.

It is intermittent. Sometimes it is on for a few minutes, other times half an hour, or until the engine is off and restarted.

I have a diagnostic code as follows:

P003C Drivers side front impact sensor – OC (open circuit)

I see in a previous post for a similar issue it mentions a “sensor block”.

Is there anything else it could be with this code?

Many thanks.
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Old 30-03-2011   #2
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Re: Drivers Airbag Light - Fault code P003C Drivers Side Front Impact Sensor

The error occurs when the front seats are shifted for / back while ignition is on !

check the connection between sensor / cable sensor under the front seat:



unplug and plugin the connector and see if error is still present.

For the future: do not shift the seats with ignition on
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Old 12-04-2011   #3
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Re: Drivers Airbag Light - Fault code P003C Drivers Side Front Impact Sensor

Many thanks.

I will check it, and I have issued strict instructions to my wife, (who promptly ignored the aforementioned strict instructions, and moved the seat with the ignition on, on Saturday evening!)
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Old 13-04-2011   #4
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Re: Drivers Airbag Light - Fault code P003C Drivers Side Front Impact Sensor

Thats not a impact sensor
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Old 14-04-2011   #5
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Re: Drivers Airbag Light - Fault code P003C Drivers Side Front Impact Sensor

Quote Originally Posted by T14086 View Post
Thats not a impact sensor
the airbag computer measures the resistance from the sensors located inside the seat - if the resistance is out of range cause the connector is pulled while the seat is shifted, the computer switch off the airbag system and the airbag light on
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Old 14-04-2011   #6
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Re: Drivers Airbag Light - Fault code P003C Drivers Side Front Impact Sensor

Quote Originally Posted by malibu_2004 View Post
the airbag computer measures the resistance from the sensors located inside the seat - if the resistance is out of range cause the connector is pulled while the seat is shifted, the computer switch off the airbag system and the airbag light on
That's not a impact sensor your describing you are referring to a weight sensor.
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Old 05-12-2012   #7
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Re: Drivers Airbag Light - Fault code P003C Drivers Side Front Impact Sensor

Hi, I am having trouble locating this connector. I have a doblo 1.9 JTD 2002. Was it fitted to that model/year. If so, is it on both seats and what side of the seat is it on ?
Thanks.
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