My SRS light is on, many codes

VIVEKHB

MEMBER
2003 MERCEDES BENZ C230
1.8L
4 CYL
2WD
AUTOMATIC
128,800 MILES

The scanner shows DTC as follows;
1. B102B
2. B102D
3. B106C
4. B107A
5. B107B
6. B1003
7. B1025
8. B1027
9. B1029
10. B1031
11. B1033
12. B1076
Sir, please help me to know exactly what is to be done/changed.

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9 Replies

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

Hello,

It looks like the SAM module is out. To be sure lets clear the codes and then turn the key on without starting the engine to see which codes come up. Here are two guides to help us:

https://youtu.be/ahK_eucFi-k

and

https://youtu.be/HEvLsWdcL0M

Please run down these guides and report back.

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Saturday, August 10th, 2019 AT 2:13 PM

VIVEKHB

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89 POSTS

Thanks a lot, Sir.I will let you know what's the output.

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Saturday, August 10th, 2019 AT 5:31 PM

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

Please do ;)

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Monday, August 12th, 2019 AT 10:34 AM

VIVEKHB

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89 POSTS

Sure, I have to buy the OBD2 first, so please give me some time.

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Monday, August 12th, 2019 AT 12:44 PM

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

I would try Amazon they have them between $20.00 and $300.00 Here is the one I would get. Here is one for 115.00

https://www.amazon.com/gp/product/B072XH9GLW/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=2carprcom-20&creative=9325&linkCode=as2&creativeASIN=B072XH9GLW&linkId=6bf2476ef5f43cd382a94aa4a6507ad4

Please let us know what happens.

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Tuesday, August 13th, 2019 AT 9:18 AM

VIVEKHB

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Thanks for the website.

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Tuesday, August 13th, 2019 AT 2:44 PM

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

Please let us know what you find. We are interested to see what it is.

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Wednesday, August 14th, 2019 AT 10:55 AM

VIVEKHB

MEMBER
89 POSTS

Sir, after I tried but the codes could not be erased. The data stream shows as follows.

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Saturday, August 17th, 2019 AT 4:59 PM

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

Okay, it looks like the CAN is not working due to the failure of the airbag control module. To be sure here are the airbag wiring diagrams so you can test for power and grounds with the airbag module replacement instructions:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Check out the diagrams (below). Please let us know what you find.

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