I have a 1997 Expedition. I removed the fuse under the hood #2 by mistake, (I put the fuse back not blown) since then the airbag light will flash 5 times then 2 times. I have removed power from the battery for over 10 minutes with no luck. Does anyone have any Idea's

 

it may have put a code on the system take it to autozone and have them pull the codes

 

A code 52 is not in the airbag system for the program I have.Autozone would'nt check my airbag out to find out why my lite was flashing.They said all they could scan for was engine codes.

 

I checked for codes with a OBDII it shows no codes I get the evap code from time to time and I have to clear that code.
I have a shop service manual and this is what it says:

Code (LFC - Lamp Fault Code, flashed on air bag indicator.) 12/52 Lost or low battery voltage GO to Pinpoint Test A.

Pinpoint Test A: LFC 12/52/DTC B1867 — Lost Battery Feed or Low Battery Feed Voltage

Pinpoint Test A: LFC 12/52/DTC B1867 — Lost Battery Feed or Low Battery Feed Voltage

Normal Operation
The air bag diagnostic monitor (14B056) measures the voltage at C209-14, circuit 937 (R/W), of the air bag diagnostic monitor. Voltage at C209-14, circuit 937 (R/W), should be equal to battery voltage. If the voltage at C209-14, circuit 937 (R/W), drops to less than 8 volts, the air bag diagnostic monitor will flash a lamp fault code (LFC) 12 on the air bag indicator. If the voltage at pin C209-14, circuit 937 (R/W), drops to less than 5 volts, the diagnostic trouble code (DTC) B1867 will also be stored in memory. Should the loss of battery voltage at C209-14, circuit 937 (R/W), be intermittent or repaired, the air bag diagnostic monitor will flash a LFC 52 (or higher priority code if one exists) on the next ignition switch cycle.

Possible Causes
WARNING:
DO NOT UNDER ANY CIRCUMSTANCES SUBSTITUTE ANOTHER FUSE VALUE FOR THE 10A BATTERY FUSE 2. ANY FUSE OTHER THAN 10A MAY CAUSE DISARMING FAILURE AND MAY RESULT IN DANGER TO THE OCCUPANTS OF THE VEHICLE. DO NOT ATTEMPT TO REPLACE THE 10A FUSE 2 UNLESS THE AIR BAG SYSTEM FIRST HAS BEEN DEACTIVATED. (REFER TO THE DEACTIVATION PROCEDURE IN THIS SECTION).
Note:
If a short to ground exists on any of circuits 607 (LB/O), 614 (GY/O), 615 (GY/W), or 616 (PK/BK), leading to a LFC 13 or 53 and DTC B1913; or, similarly, a short to ground exists on any of circuits 617 (PK/O), 619 (PK/W), 624 (Y/W), or 625 (Y/LG), leading to a LFC 14 or 54 and DTC B1914, the air bag diagnostic monitor will activate an internal solid state switch at C209-13 of the air bag diagnostic monitor. This causes the battery fuse 2 (10A) to blow, thus disarming the air bag system and preventing inadvertent air bag deployment. If the power distribution box battery fuse 2 has blown, it must be replaced by a 10A fuse.
Low voltage at air bag diagnostic monitor C209-14, circuit 937 (R/W), can be caused by:

l An open in the battery circuit that would prevent battery positive voltage (B+) from reaching the air bag diagnostic monitor C209-14, circuit 937 (R/W).

l A short to ground on the battery feed circuit between the fuse 2 (10A) and C209-13, circuit 937 (R/W), or C209-14, circuit 937 (R/W), of the air bag diagnostic monitor.

l A concern in the charging system causing battery voltage to drop below 8 volts.
After the air bag diagnostic monitor has disarmed the air bag system, it will not be enabled to disarm again until the appropriate condition (DTC B1913 or B1914) has been repaired and cleared by performing the appropriate pinpoint tests.

 

rx7world:

Just had the same problem right down to the 5/2 flashes on my 98 EB. Took it to the local Ford dealer and they found a blown fuse which they replaced. They then reset the light. All it cost me was one hour labor($85.00). I figured it was better that they fix it than me screwing around and setting off the airbag by mistake. Which by the way would have cost a whole lot more to fix.

Larry in Nevada
98 EB all stock
5.4 Triton, LLS
Red and Tan
118,000 miles and still going strong

 

I recently experienced a similar problem with my Air Bag light. First, the code I was getting was a 3 /7. (Not that I knew what that meant!)

But there was another person on the forum that recommended checking the 2 wire connection under the right front seat.

I started with the fuse (old aircraft habit, check the CB first) and found no problems there. In fact, the fuse for the Air Bag Control also controls other climate control elements that are functioning. Anyway, checked the 10A fuse and it was good. Restart engine, same code.

Turned off engine and inspected the 2 wire (blk/wht) harness under each seat. To my surprise, the passenger seat wire (wht) felt a bit "loose" in the connector. I pushed the wire and pin "in" and felt no resistance like the black pin side. Could this be it?

Restarted the truck and the code flash was gone!

I am certain that either one my passengers or recent cargo configs lead to a "tug" on the wire harness.

So check the wiring at the connectors folks - worked for me!

'00 Expi XLT
Small Triton
80K miles
"Love this truck!"

 

Thanks for the tip, I looked under the seats, I only found plugs under the drivers seat, I made sure the connectors were good and tried to reset,but I still have the lights. When I pulled the fuse the truck was running, when I put the fuse back there was a spark, I am thinking now that I screwed up the diagnostic module (my luck) The dealer wants $280 for one and the junk yards won't sell them without selling the air bags with it for $600.00. So I will be going to the local auction to pick up a wrecked expedition get the parts I need then part the rest of it out.
The fuses are good so I don't know what else to do but replace the module. If anyone else has an Idea please let me know. Thanks Ernst

 

I would not give up on fixing your system. Get a good Ford Manual, and you should be able to troubleshoot it.