Tuning, Diagnostics, Electronics, and Wiring HP Tuners | EFILive | Hand Held Programmers | Stand Alone PCM's | Electronics | Wiring Diagrams

SRS light on and no communication

Thread Tools
 
Search this Thread
 
Old Aug 14, 2022 | 09:49 AM
  #1  
Camburg5.3's Avatar
Thread Starter
Teching In
 
Joined: Sep 2013
Posts: 2
Likes: 0
From: Albuquerque
Default SRS light on and no communication

Yes, I have used the search function and read all the applicable threads lol.

I have a 2000 RCSB 1500 with a continuously flashing airbag light. The vehicle was in a collision and the airbags were deployed before I bought it. I have taken many steps to get the SRS functioning, but I am at a loss and looking for some expert advice.

Steps taken in order:
1. Replaced impact sensor and reset crash module through safety restore.

2. Replaced driver airbag.

3. Replaced passenger airbag.

I drove it for a while not knowing the passenger bag was deployed. The previous owner repacked it and replaced the cover. I assumed the discriminator switch kept it from deploying. Before replacing the passenger, the SRS light would flash 7 times on startup and then constantly stay illuminated. After replacement, it flashes 7 times on startup, then continuously flashes.

4. Scanned the SRS for codes…no communication. All other scanner functions work on this vehicle and all functions work on my jeep and ram.

5. chased all wires for shorts and breaks, ohm tested all fuses and the clock spring. No issues.

6. Swapped in a Tahoe crash module to see if the restored one was not functioning… still no communication.

What am I missing? Thanks in advance!






Reply
Old Aug 15, 2022 | 09:01 PM
  #2  
1FastBrick's Avatar
Custm2500's Rude Friend
15 Year Member
Loved
Liked
Community Favorite
iTrader: (17)
 
Joined: Apr 2007
Posts: 14,592
Likes: 900
From: JunkYard
Default

I was always told/ taught that the clock spring needed to be replaced after an air Bag Deployment. Were did you get the sensors from?

As for your communication issue, Have you tried it on a similar vehicle? Does the scanner communicate with the engine side?
Reply
Old Aug 15, 2022 | 11:07 PM
  #3  
Camburg5.3's Avatar
Thread Starter
Teching In
 
Joined: Sep 2013
Posts: 2
Likes: 0
From: Albuquerque
Default

Thanks for the reply 1FastBrick,

Over the weekend I threw a few more parts at it, all from the local pick and pull.

I replaced the clock spring, passenger override switch and the crash module. Still no communication. The only change is with the airbag light. With the old module, constant flash. With the new(used), it’s always on.

The scanner can perform all functions on the Silverado except the SRS. I don’t know anyone with a similar vehicle, but like I said, everything works on my other two vehicles. 🤷
Reply
Old Aug 16, 2022 | 10:20 AM
  #4  
1FastBrick's Avatar
Custm2500's Rude Friend
15 Year Member
Loved
Liked
Community Favorite
iTrader: (17)
 
Joined: Apr 2007
Posts: 14,592
Likes: 900
From: JunkYard
Default

Originally Posted by Camburg5.3
Thanks for the reply 1FastBrick,

Over the weekend I threw a few more parts at it, all from the local pick and pull.

I replaced the clock spring, passenger override switch and the crash module. Still no communication. The only change is with the airbag light. With the old module, constant flash. With the new(used), it’s always on.

The scanner can perform all functions on the Silverado except the SRS. I don’t know anyone with a similar vehicle, but like I said, everything works on my other two vehicles. 🤷
You still need to rule it out on a similar vehicle by checking it's function. I sold my 2000 a few years back but I know the communication on some of the stuff was different between the 99-02 and the 03-07 classic. There were even minor differences in the 99-00 to the 01-02 trucks software. This is also why I asked if it communicated with the engine side.

I have seen a few videos of the light flashing 7-8 times when you first turn the truck on. This appears to be a normal system's check. But if it stays on solid or is continuously flashing after that, there is an issue. I remember on my truck the passenger side switch was faulty in the ON position but if you put it in to the OFF position it worked normally.

With out the codes, It's just a guess as to what's wrong. I don't know how bad the accident was. If there was any pinched wires or anything that was removed, I would go back over all the connections. Check for bent pins or loose connections. Including the belt buckle. They have sensor to see if the belt is plugged in or not. some times those have to be replaced as well.

Other wise see if you can find some one in your area that specializes in this.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Chevy67don
GMT 800 & Older GM General Discussion
5
Oct 6, 2013 05:22 PM
818camaro
GMT 800 & Older GM General Discussion
10
Dec 5, 2009 09:31 PM
brandboZ28
GM Drivetrain & Suspension
5
Dec 3, 2008 04:38 PM
20firebird02
Tuning, Diagnostics, Electronics, and Wiring
1
Nov 14, 2008 03:40 PM




All times are GMT -5. The time now is 05:24 PM.