2003 Chevy Suburban Sensors, location and servicing

2003 CHEVROLET SUBURBAN

ROKIT

MEMBER
4 POSTS

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

BRIAN 1

✓ASE Certified 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.

Oct 20, 2009 at 8:43 PM

ROKIT

MEMBER
4 POSTS

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

BRIAN 1

✓ASE Certified Mechanic
1,030 POSTS

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

ROKIT

MEMBER
4 POSTS

Thanks.
Can any shop reflash the transfer case module of does it have to be the dealer?

Oct 22, 2009 at 1:27 PM

BRIAN 1

✓ASE Certified Mechanic
1,030 POSTS

I would recomend the dealer,most independant shops dont have the equipment.

Oct 22, 2009 at 5:22 PM

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.

Oct 22, 2009 at 11:26 PM

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