Air Bag Light

[Eric-Blk2004]

Hello,

The air bag light came on the Marauder yesterday. When I hooked up the snap on at my friend's shop I got this code:

B1892 Air Bag warning tone circuit failure.

Thoughts? Never seen this before...

Thanks,
Eric

[Egon Spengler]

I would like to know as well... the same thing happened to my ex-girlfriends car as well and still does... affraid it might happen to mine soon

[Zack]

Most likely the clock spring.
Air Bags and components are covered for 5 full years after the in-service date.

[Eric-Blk2004]

So I can take it to the dealer and get it fixed for free?

[RoyLPita]

5/50 coverage for air bag light concerns.

[Eric-Blk2004]

So the dealer says if it is the clock spring that they will not cover it. They said that the warranty covers a failed air bag unit and not the wiring or electrical. I call bullshyte on that.

They tired to charge me 500 dollars to fix it - saying the entire driver side dash and everything underneath has to come down to fix it/troubleshoot it. He says he is not sure its the clock wire and the code has a flow chart he has to follow - the follow chart takes 3 to 5 hours hence the 500 in labor plus whatever the problem is.

Anyone know if I can shut the seatbelt light warning sound up - if I can I will live with the airbag light on. I never the drive the thing anyway. Better yet is there a way to shut that light off as well...I hate lights on my dash!

[hdwrenchtx]

the follow chart takes 3 to 5 hours hence the 500 in labor plus whatever the problem is

that must be one hellova flow chart 3-5 hrs *********.

i guess i'll find out what my dealer says since my light just came on today.

hopefully it is the beginning of a self destruct sequence

[larryo340]

The attachment way at the bottom of post shows the code and which pinpoint test to use which I copied below. This is pretty much useless without the right test equipment, and is still not an easy task.
Your best bet is first to check for TSB's you might get lucky. If no one here can get them you can buy a "subscription" from:

http://www.motorcraftservice.com/vdirs/retail/default.asp?pageid=cat_4&gutsid=productdetail

or
http://www.alldatadiy.com/products/diy/index2.html



PINPOINT TEST E: LFC 53/DTC B1892 — AIR BAG TONE WARNING INDICATOR CIRCUIT SHORTED TO GROUND OR OPEN




Test Step Result / Action to Take E1 CHECK FOR A HARD OR INTERMITTENT DTC

Enter the following diagnostic mode on the diagnostic tool: Retrieve/Record Continuous DTCs.
Enter the following diagnostic mode on the diagnostic tool: On-Demand Self Test.
Was DTC B1892 retrieved during the on-demand self test?
Yes
This is a hard fault. The fault condition is still present. This fault cannot be cleared until it is corrected and the DTC is no longer retrieved during the on-demand self test. GO to E2 (file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=S4A1KB05.htm~ge n~ref.htm#E2).

No



This is an intermittent fault. The fault condition is not present at this time. GO to E5 (file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=S4A1KB05.htm~ge n~ref.htm#E5). E2 CHECK THE AIR BAG TONE WARNING INDICATOR CIRCUIT FOR A SHORT TO GROUND

file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=ani_caut.gif~ge n~ref.gif WARNING: If the supplemental restraint system (SRS) is being serviced, the system must be deactivated and restraint system diagnostic tools must be installed. Refer to Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) (file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=S4A1KB03.htm~ge n~ref.htm)in this section.

The air bag restraint system diagnostic tools must be removed and the air bag modules reconnected when the system is reactivated to avoid non-deployment in a collision, resulting in possible personal injury. file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=ani_caut.gif~ge n~ref.gif WARNING: Never probe the connectors on the air bag module. Doing so can result in air bag deployment, which can result in personal injury. file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=ani_caut.gif~ge n~ref.gif WARNING: The safety belt pretensioner is a pyrotechnic device. Always wear safety glasses when repairing an air bag equipped vehicle and when handling a safety belt buckle pretensioner or safety belt retractor pretensioner. Never probe a pretensioner electrical connector. Doing so could result in pretensioner or air bag deployment and could result in personal injury. NOTE: After diagnosing or repairing an SRS, the restraint system diagnostic tools must be removed before operating the vehicle over the road. NOTE: After diagnosing or repairing a seat system, the restraint system diagnostic tools must be removed before operating the vehicle over the road. NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
Key in OFF position.
Deactivate the system. Refer to Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) (file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=S4A1KB03.htm~ge n~ref.htm)in the Diagnosis and Testing portion of this section.
Disconnect: RCM C310b.
Disconnect: Lighting Control Module C2145a.
Measure the resistance between RCM C310b pin 11, circuit 1083 (LB/BK), harness side and RCM C310b pin 10, circuit 57 (BK), harness side.
file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=A0029760.gif~ge n~ref.gif
Is the resistance greater than 1,000,000 ohms?
Yes
GO to E3 (file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=S4A1KB05.htm~ge n~ref.htm#E3).

No



REPAIR circuit 1083 (LB/BK). GO to E6 (file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=S4A1KB05.htm~ge n~ref.htm#E6). E3 CHECK THE AIR BAG TONE WARNING INDICATOR CIRCUIT FOR AN OPEN

Measure the resistance between RCM C310b pin 11, circuit 1083 (LB/BK), harness side and lighting control module C2145a pin 17, circuit 1083 (LB/BK), harness side.
file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=A0030693.gif~ge n~ref.gif
Is the resistance less than 0.5 ohms?
Yes
GO to E4 (file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=S4A1KB05.htm~ge n~ref.htm#E4).

No



REPAIR circuit 1083 (LB/BK). GO to E6 (file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=S4A1KB05.htm~ge n~ref.htm#E6). E4 CHECK THE AIR BAG TONE WARNING INDICATOR

Connect: Lighting Control Module C2145a.
Key in ON position.
Measure the voltage at RCM C310b pin 11, circuit 1083 (LB/BK).
file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=A0015359.gif~ge n~ref.gif
Is the voltage less than 0.2 volt?
Yes
INSTALL a new lighting control module. REFER to Section 413-01A (file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~leftside=S4ASD1AL.ht m&rightside=S4ASD1AR.htm&market=us&lang=en~gen~2col.htm)or Section 413-01B (file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~leftside=S4ASD1BL.ht m&rightside=S4ASD1BR.htm&market=us&lang=en~gen~2col.htm). GO to E6 (file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=S4A1KB05.htm~ge n~ref.htm#E6).

No



INSTALL a new RCM. REFER to Restraints Control Module (RCM) (file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=S4A1KB20.htm~ge n~ref.htm). GO to E6 (file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=S4A1KB05.htm~ge n~ref.htm#E6). E5 CHECK FOR AN INTERMITTENT FAULT

file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=ani_caut.gif~ge n~ref.gif WARNING: If the supplemental restraint system (SRS) is being serviced, the system must be deactivated and restraint system diagnostic tools must be installed. Refer to Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) (file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=S4A1KB03.htm~ge n~ref.htm)in this section.

The air bag restraint system diagnostic tools must be removed and the air bag modules reconnected when the system is reactivated to avoid non-deployment in a collision, resulting in possible personal injury. file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=ani_caut.gif~ge n~ref.gif WARNING: Never probe the connectors on the air bag module. Doing so can result in air bag deployment, which can result in personal injury. file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=ani_caut.gif~ge n~ref.gif WARNING: The safety belt pretensioner is a pyrotechnic device. Always wear safety glasses when repairing an air bag equipped vehicle and when handling a safety belt buckle pretensioner or safety belt retractor pretensioner. Never probe a pretensioner electrical connector. Doing so could result in pretensioner or air bag deployment and could result in personal injury. NOTE: After diagnosing or repairing an SRS, the restraint system diagnostic tools must be removed before operating the vehicle over the road. NOTE: After diagnosing or repairing a seat system, the restraint system diagnostic tools must be removed before operating the vehicle over the road. NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
Key in OFF position.
Deactivate the system. Refer to Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) (file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=S4A1KB03.htm~ge n~ref.htm)in the Diagnosis and Testing portion of this section.
Key in ON position.
Enter the following diagnostic mode on the diagnostic tool: On-Demand Self Test.
Was DTC B1892 retrieved during the on-demand self test?
Yes
GO to E2 (file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=S4A1KB05.htm~ge n~ref.htm#E2).

No



CHECK for causes of intermittent short to ground or open on circuit 1083 (LB/BK). ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition key frequently. REPAIR any intermittent concerns found. GO to E6 (file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=S4A1KB05.htm~ge n~ref.htm#E6). E6 CHECK FOR ADDITIONAL DTCs

Refer to the continuous DTCs recorded during Step E1.
Were any continuous DTCs retrieved during Step E1?
Yes
Do not clear any DTCs until all DTCs have been resolved. GO to the Restraints Control Module (RCM) Diagnostic Trouble Code (DTC) Priority Table in this section for pinpoint test direction.

No
RECONNECT the system. REACTIVATE the system. PROVE OUT the system. REFER to Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) (file:///C:/TSO/tsocache/LARRY-PC_5840/S4A~us~en~file=S4A1KB03.htm~ge n~ref.htm)in this section. CLEAR all DTCs.

[ImpalaSlayer]

Larry always comes through with the info :up:

[larryo340]

Thanks, anytime you need something from the manual just ask.