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CeuX 05-25-2012 01:44 PM

Airbag Light On
 
Hi anyone knew what would trigger that light to come on? I was cleaning under the seat when i disconnected the plug into the seat belt pre-tensioner and BOOM the light come on but I connect the plug back and the light still there. The fuse are good, Also I disconnect the negative terminal on the battery but nothing change.

My jeep grand cherokee limited 2002 V8 4.7l

Thanks

Frango100 05-25-2012 06:11 PM

Re: Airbag Light On
 
The airbag control module is constantly monitoring the system for faults. It will light the airbag light in that case and keep a fault code in memory. Normally the fault light should reset after a fault has cleared, but it can take sometimes several ignition cycles. Did you leave the battery disconnected for a few minutes?

CeuX 05-26-2012 12:09 AM

Re: Airbag Light On
 
Quote:

Originally Posted by Frango100 (Post 634816)
The airbag control module is constantly monitoring the system for faults. It will light the airbag light in that case and keep a fault code in memory. Normally the fault light should reset after a fault has cleared, but it can take sometimes several ignition cycles. Did you leave the battery disconnected for a few minutes?


Yes I did the reset disconnecting the negative and I check all the plugs and the fuses too but nothing yet. That was tree weeks ago and the light still on.. Sorry for my litter English and Thank You for answer,... :(

Frango100 05-26-2012 10:08 AM

Re: Airbag Light On
 
Then there is probably no other way then to look for a DRBIII scanner and have the fault code read/reset.
Did you recheck the respective connector that no pin was bent or pushed back during the reconnect phase?
The battery has to be disconnected for 10 minutes or so, because there is a capacitor in the airbag control unit that has to discharge, and that takes some time.

CeuX 05-28-2012 12:01 PM

Re: Airbag Light On
 
Quote:

Originally Posted by Frango100 (Post 635011)
Then there is probably no other way then to look for a DRBIII scanner and have the fault code read/reset.
Did you recheck the respective connector that no pin was bent or pushed back during the reconnect phase?
The battery has to be disconnected for 10 minutes or so, because there is a capacitor in the airbag control unit that has to discharge, and that takes some time.

Yes I am Electronic Technician and I recheck with my Multimeter and the connector and the pin looks good no bent or pushed back during the reconnect phase. The battery was disconnected for about 1 HR but not reset the Module.. Can I found that Scanner DRBIII in Store.???

Frango100 05-28-2012 03:33 PM

Re: Airbag Light On
 
Donīt know where you from, but at least the dealer should have it and maybe even a local mechanic. This type of scanner is quite expensive.

CeuX 05-28-2012 06:24 PM

Re: Airbag Light On
 
Quote:

Originally Posted by Frango100 (Post 635728)
Donīt know where you from, but at least the dealer should have it and maybe even a local mechanic. This type of scanner is quite expensive.

Thank You Frango100 lets see if I found something where I live that is Springfield MA I let you Know....ok

CeuX 06-22-2012 12:51 PM

Re: Airbag Light On
 
Quote:

Originally Posted by CeuX (Post 635767)
Thank You Frango100 lets see if I found something where I live that is Springfield MA I let you Know....ok

Hey guys I heard something about the sensor under the seat. Those sensor need to be clean with compressed air. Any idea about those sensors.?? But so far my light still on. :(

Frango100 06-22-2012 05:19 PM

Re: Airbag Light On
 
Not sure about which sensors you are talking now. There are 2 side impact sensors mounted on the lower side of the B-pillars for jeeps with the side curtain airbags. These sensors are not under the seat themselves, not sure if the connector maybe is. An other item is the seatbelt tensioner, but i believe that this was not an option for the North American market. The 2 sensors are electronic accelerometers and there is nothing to clean on them, they are hermetically sealed.
You couldnīt find a shop with a DRBIII scanner yet?

CeuX 06-23-2012 01:10 AM

Re: Airbag Light On
 
Quote:

Originally Posted by Frango100 (Post 646805)
Not sure about which sensors you are talking now. There are 2 side impact sensors mounted on the lower side of the B-pillars for jeeps with the side curtain airbags. These sensors are not under the seat themselves, not sure if the connector maybe is. An other item is the seatbelt tensioner, but i believe that this was not an option for the North American market. The 2 sensors are electronic accelerometers and there is nothing to clean on them, they are hermetically sealed.
You couldnīt find a shop with a DRBIII scanner yet?

Well I already found the place that makes the diagnosis. I get this diagnosis for $45 boxes. Which is good price compared to the factory dealer that costs $120 just for diagnosis. But I am still trying to see and learn by my self what could be... you Know... keep in contact ;)

Carlos Brown 07-26-2012 04:10 PM

Re: Airbag Light On
 
CeuX,

I had the same problem for some time and tried running codes. I later found out that the Air Bag system is not accessed through the OB-II/OB-III codes. It requires an expensive tool that most only repair shops have. Chrysler wanted $100 to run the codes.

I opted to replace my 2002 Air Bag Control Module with a late model 2004 unit. It is an ungraded unit that can be swapped into earlier year WJ's without any additional installation requirements. It eliminates the two front end impact sensors from the programming.

Since the install I have not had an Air Bag light illumination... The Service Bulletin can be accessed on WJJeeps...

Regards,

Carlos

CeuX 08-02-2012 01:14 PM

Re: Airbag Light On
 
Quote:

Originally Posted by Carlos Brown (Post 661813)
CeuX,

I had the same problem for some time and tried running codes. I later found out that the Air Bag system is not accessed through the OB-II/OB-III codes. It requires an expensive tool that most only repair shops have. Chrysler wanted $100 to run the codes.

I opted to replace my 2002 Air Bag Control Module with a late model 2004 unit. It is an ungraded unit that can be swapped into earlier year WJ's without any additional installation requirements. It eliminates the two front end impact sensors from the programming.

Since the install I have not had an Air Bag light illumination... The Service Bulletin can be accessed on WJJeeps...

Regards,

Carlos

I am still have the problem, inspection shop cost $90 box more ore less and I check all the cable and fuse and nothing found... thank you Carlos o Gracias si entiendes Espaņol,,


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