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2003 Chevy Suburban Sensors, location and servicing

Tiny
ROKIT
  • MEMBER
  • 2003 CHEVROLET SUBURBAN
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.
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Tuesday, October 20th, 2009 AT 2:04 PM

6 Replies

Tiny
BRIAN 1
  • MECHANIC
  • 1,030 POSTS
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.
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Tuesday, October 20th, 2009 AT 8:43 PM
Tiny
ROKIT
  • MEMBER
  • 4 POSTS
Thanks for the quick reply. But one of my my questions was can I just replace these sensors?
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Tuesday, October 20th, 2009 AT 9:57 PM
Tiny
BRIAN 1
  • MECHANIC
  • 1,030 POSTS
The trasfer case control module I would just have reflashed, and the impact sensors you could just replace them.
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Wednesday, October 21st, 2009 AT 5:50 PM
Tiny
ROKIT
  • MEMBER
  • 4 POSTS
Thanks.
Can any shop reflash the transfer case module of does it have to be the dealer?
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Thursday, October 22nd, 2009 AT 1:27 PM
Tiny
BRIAN 1
  • MECHANIC
  • 1,030 POSTS
I would recomend the dealer, most independant shops dont have the equipment.
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Thursday, October 22nd, 2009 AT 5:22 PM
Tiny
ROKIT
  • MEMBER
  • 4 POSTS
Thanks again, I'll be crawling under the trucktomorrow, weather permitting. It's been a pleasure and you've been a great help.
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Thursday, October 22nd, 2009 AT 11:26 PM

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