2003 Chevy Suburban Sensors, location and servicing

2003 CHEVROLET SUBURBAN
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ROKIT
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Computer problem
2003 Chevy Suburban V8 Four Wheel Drive Automatic 40K miles

My suburban "service airbag" and "service 4WD" (vehicle won't sift into 4WD LOW) messages came on, a friend identified the codes for the 4WD sensor (C0300) and the airbag sensors (B 103 & 104) using his reader. CanI just replace these sensors and where are they located?
Thanks in advance.
Oct 20, 2009 at 2:04 PM
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BRIAN 1
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for c0300 reprogramm the transfercase control module and b0103 and 04 are left and right impact sensors,located behind the front bumper under the radiator.
Oct 20, 2009 at 8:43 PM
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ROKIT
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Thanks for the quick reply...but one of my my questions was can I just replace these sensors ?
Oct 20, 2009 at 9:57 PM
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BRIAN 1
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the trasfer case control module I would just have reflashed,and the impact sensors you could just replace them.
Oct 21, 2009 at 5:50 PM
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ROKIT
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Thanks.
Can any shop reflash the transfer case module of does it have to be the dealer?
Oct 22, 2009 at 1:27 PM
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BRIAN 1
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I would recomend the dealer,most independant shops dont have the equipment.
Oct 22, 2009 at 5:22 PM
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ROKIT
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Thanks again, I'll be crawling under the trucktomorrow, weather permitting. It's been a pleasure and you've been a great help.
Oct 22, 2009 at 11:26 PM