Air bag light flashing

Which light ? on the instrument cluster or the passenger side .
If a lamp fault code (LFC) is reported by the customer but is not present when the vehicle comes in for service, follow the Diagnostic Instructions procedure in this section to identify the intermittent DTC.

Lamp Fault Codes
When the restraints control module (RCM) detects a system fault, it will cause the air bag indicator to flash a coded sequence; a lamp fault code (LFC). The code is 2 digits. The first digit is flashed with a 0.5-second interval between pulses. There is a 2-second pause before the second digit is flashed which also has a 0.5-second interval between pulses. There is a 5-second pause between each display of an LFC.
Each LFC is flashed 3 times after which the air bag indictor will remain lit for the remainder of the key-on cycle. If there are multiple LFCs, each LFC will flash in order of priority. Lamp flash code 34

B2292 d 34 Restraint System - Seat Belt Pretensioner Fault (Passenger Pretensioner Circuit Fault) Go To Pinpoint Test R .
PINPOINT TEST R: LFC 33 AND 34/DTC B2292 - RESTRAINT SYSTEM - SEAT BELT PRETENSIONER FAULT NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough Inspection and Verification before proceeding with the pinpoint test.
NOTE: The retractor pretensioner connector keying is different between vehicles. The retractor pretensioner connector shown in the following pinpoint test is equipped on the Five Hundred, the connector equipped on the Freestyle and Montego is similar.
Test Step Result / Action to Take R1 CHECK FOR CONTINUOUS OR ON-DEMAND DTCs

WARNING: Restraint system diagnostic tools are for service only. Tools must be removed prior to operating the vehicle over the road. Failure to remove restraint system diagnostic tools could result in injury and possible violation of vehicle safety standards. WARNING: Do not handle, move or change the original horizontal mounting position of the restraints control module (RCM) while the RCM is connected and the ignition switch is ON. Failure to follow these instructions may result in the inadvertent deployment of the safety canopy and risk of personal injury. WARNING: Never probe the connectors on the air bag module. Doing so can result in air bag deployment, which can result in personal injury. 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. WARNING: Never probe the electrical connector on a safety canopy module. Doing so can result in safety canopy deployment. NOTE: If a seat equipped with a supplemental restraint system (SRS) component is being serviced, the SRS must be depowered. NOTE: After diagnosing or repairing an SRS, 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.
• Enter the following diagnostic mode on the diagnostic tool: On-Demand Self Test.
• Enter the following diagnostic mode on the diagnostic tool: Flag DTC B2292/ Record All Flagged Faults.
• Enter the following diagnostic mode on the diagnostic tool: Retrieve/Flag /Record Continuous DTCs.
• Was DTC B2292 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 R2 .

No
This is an intermittent fault. The fault condition is not present at this time. Your best bet , take it to a qualified repair shop .



.

The five beeps - five times would indicate a code 55 , but factory service info only goes to code 53 .

• Audible tone - DTCs retrieved

• Air bag SRS system fault

• REFER to DTC Priority Table.

Did your air bag light flash at all ? Apparently this will do flash the air bag light codes as well .
Symptom Chart Condition Possible Sources Action

• Air bag warning indicator is illuminated continuously

• Fuse
• Damaged wiring, terminals or connectors
• A faulty diagnostic connector
• A faulted RCM
• A faulty instrument cluster

• Go To Pinpoint Test A .

• Air bag indicator flashing

• Air bag/pretensioner supplemental restraint system (SRS) fault

• REFER to DTC Priority Table.

• Audible tone - DTCs retrieved

• Air bag SRS system fault

• REFER to DTC Priority Table.

• No communication with the restraints control module (RCM)

• Fuse
• Diagnostic tool
• Data link connector (DLC)
• A faulted RCM
• Circuitry

• Go To Pinpoint Test V .

LFC - light flash codes .
Restraints Control Module (RCM) Diagnostic Trouble Code (DTC) Table
DTC a LFC b Description Action To Take - Continuous The Air Bag Indicator is Illuminated Continuously, RCM Disconnected or Inoperative, Loss of Battery Feed, or Loss of Signal Ground Go To Pinpoint Test A . B1231 13 Crash Data Memory Full Install a new RCM and impact sensors. REFER to Inspection and Repair After a Supplemental Restraint System (SRS) Deployment . B1317 Continuous Battery Voltage High CHECK battery voltage; to be below 16 volts. REFER to Section 414-01 . B1318 Continuous Battery Voltage Low CHECK battery voltage; to be above 9.0 volts. REFER to Section 414-01 . B1342 12 RCM Is Faulted Install a new RCM. B1869 NONE
Continuous lamp
Secondary air bag warning sounds if another fault is present Lamp Air Bag Warning Indicator Circuit Open or Short to Ground Go To Pinpoint Test B . B1870 NONE
Secondary air bag warning sounds if another fault is present Air Bag Warning Indicator Circuit Short to Battery Go To Pinpoint Test C . B1891 53 Air Bag Tone Warning Indicator Circuit Short to Battery Go To Pinpoint Test D . B1892 53 Air Bag Tone Warning Indicator Circuit Open or Short to Ground Go To Pinpoint Test E . B1921 14 Air Bag Diagnostic Monitor Ground Circuit Open Go To Pinpoint Test F . B2292 33 Restraint System - Safety Belt Pretensioner Fault (Driver Pretensioner Circuit Fault) Go To Pinpoint Test G . B2292 34 Restraint System - Safety Belt Pretensioner Fault (Passenger Pretensioner Circuit Fault) Go To Pinpoint Test G . B2293 19 Restraint System - Air Bag Fault (Driver Front Air Bag Circuit Fault) Go To Pinpoint Test H . B2293 21 Restraint System - Air Bag Fault (Passenger Front Air Bag Circuit Fault) Go To Pinpoint Test H . B2294 24 Restraint System - Curtain Fault (Driver Side Air Curtain Circuit Fault) Go To Pinpoint Test I . B2294 25 Restraint System - Curtain Fault (Passenger Side Air Curtain Circuit Fault) Go To Pinpoint Test I . B2295 22 Restraint System - Side Air Bag Fault (Driver Seat Side Air Bag Circuit Fault) Go To Pinpoint Test J . B2295 23 Restraint System - Side Air Bag Fault (Passenger Seat Side Air Bag Circuit Fault) Go To Pinpoint Test J . B2296 42 Restraint System - Impact Sensor Fault (Front Impact Severity Sensor Circuit Fault) Go To Pinpoint Test K . B2296 43 Restraint System - Impact Sensor Fault (Driver Side Front Row Impact Sensor Circuit Fault) Go To Pinpoint Test K . B2296 45 Restraint System - Impact Sensor Fault (Driver Side Second Row Impact Sensor Circuit Fault) Go To Pinpoint Test K . B2296 44 Restraint System - Impact Sensor Fault (Passenger Side Front Row Impact Sensor Circuit Fault) Go To Pinpoint Test K . B2296 46 Restraint System - Impact Sensor Fault (Passenger Side Second Row Impact Sensor Circuit Fault) Go To Pinpoint Test K . B2434 51 Driver Safety Belt Buckle Switch Circuit Short To Ground Go To Pinpoint Test L . B2435 51 Driver Safety Belt Buckle Switch Circuit Resistance Out Of Range Go To Pinpoint Test M . B2438 52 Passenger Safety Belt Buckle Switch Circuit Short To Ground Go To Pinpoint Test N . B2439 52 Passenger Safety Belt Buckle Switch Circuit Resistance Out Of Range Go To Pinpoint Test O . B2477 Continuous Module Configuration Error INSTALL a new RCM. B2691 51 Driver Safety Belt Buckle Switch Circuit Fault Go To Pinpoint Test P . B2692 52 Passenger Safety Belt Buckle Switch Circuit Fault Go To Pinpoint Test Q . C1414 15 Incorrect Module Design Level Go To Pinpoint Test R . C1947 49 Driver Seat Track Position Sensor Circuit Short to Ground Go To Pinpoint Test S . C1948 49 Driver Seat Track Position Sensor Circuit Resistance Out Of Range Go To Pinpoint Test T . C1981 49 Driver Seat Track Position Sensor Circuit Fault Go To Pinpoint Test U . - - No Communication with the Restraints Control Module Go To Pinpoint Test V . Your best bet have codes checked with a scan tool .

The air bag light comes on/flashes when the system detects a problem. When this light is on the air bag system WILL NOT operate or deploy in the event of a collission.

Supplemental Restraint System (SRS) Depowering and Repowering

Depowering Procedure

WARNING: Always wear safety glasses when repairing an air bag supplemental

restraint system (SF3) vehicle and when handling an air bag module. This will reduce

the risk of injury in the event of an accidental deployment.

WARNING: Never probe the connectors on the airbag module. Doing so can result in

air bag deployment, which can result in personal injury.

WARNING: To reduce the risk of personal injury, do not use any memory saver

devices.

NOTE: Ifa seat equipped with a seat mounted side airbag and or a safety belt

pretensioner (if equipped) system is being serviced, the supplemental restraint system

(SES) must be depowered.

NOTE: The air bag warning lamp illuminates when the RCM fuse is removed and the

ignition switch is ON. This is normal operation and does not indicate a supplemental

restraint system (SRS) fault.

NOTE: The SRS must be fully operational and free of faults before releasing the vehicle

to the customer

1. Turn all vehicle accessories OFF.

2. Turn the ignition switch to OFF.

3. At the central junction box (Cm), located below the LH side of the instrument panel,

remove the cover and the restraints control module (RCM) fuse F223 (lOA) from

the CTh. For additional information, refer to the Wiring Diagram Manual.

4. Turn the ignition ON and visually monitor the air bag indicator for at least 30

seconds. The air bag indicator will remain lit continuously (no flashing) if the correct

ROsI fuse has been removed, If the air bag indicator does not remain lit

continuously, remove the correct RCM fuse before proceeding

5. Turn the ignition switch to OFF.

6. WARNING: To avoid accidental deployment and possible personal injury, the

backup power supply must be depleted before repairing or replacing any front or

side air bag supplemental restraint system (SRS) components and before set-ricing,

replacing, adjusting or striking components near the front or side air bag sensors,

such as doors, instrument panel, console, door latches, strikers, seats and hood

latches.

To deplete the backup power supply energy, disconnect the battery ground cable

and wait at least one minute. Be sure to disconnect auxiliary batteries and power

supplies (if equipped).

Disconnect the battery ground cable and wait at least one minute.

Repoweri.ng Procedure

1. WARNING: The restraint system diagnostic tool is for restraint system service

only. Remove from vehicle prior to road use. Failure to remove could result in

injury and possible violation of vehicle safety standards.

Make sure all restraint system diagnostic tool(s) that may have been installed during

the repair have been removed from the vehicle and all SRS components are

connected.

2. Turn the ignition switch from OFF to ON.

3. Install the ROsI fuse F2.23 (lOA) to the DB and install the cover.

4. WARNING: Be sure that nobody is in the vehicle and that there is nothing

blocking or set in front of any air bag module when the battery ground cable is

connected.

Connect the battery ground cable.

5. Prove out the supplemental restraint system (SRS) as follows:

Turn the ignition key from ON to OFF. Wait 10 seconds, then turn the key back to

ON and visually monitor the air bag indicator with the air bag modules installed. The

air bag indicator will light continuously for approximately six seconds and then turn

off. If an air bag supplemental restraint system (SF3) fault is present, the air bag

indicator will:

- failto light.

- remain lit continuously.

- flash.

The flashing might not occur until approximately 30 seconds after the ignition switch

has been turned from the OFF to the ON position. This is the time required for the

restraints control module (RCM) to complete the testing of the SRS. if the air bag

indicator is inoperative and a SRS fault exists, a chime will sound in a pattern of 5

sets of 5 beeps. If this occurs, the air bag indicator and any SRS fault discovered

must be diagnosed and repaired.

The system need to be trouble code free to operate the way its supposed to from the manufacture. if the air bag light on the dash is flashing the system will not work properly

Do you want to know if the airbag was disabled or if the sensors were disabled? But basically, if the impact was from the side or rear, the airbag won't deploy. If the impact was from the front and went over the front bumper, again, the airbag wouldn't deploy.

first, you need to read the Lamp Fault Code, LFC from the flashing light. Here's how:

Lamp Fault Codes
When the restraints control module (RCM) detects a system fault, it will cause the air bag indicator to flash a coded sequence: a lamp fault code (LFC). The code is two digits. The first digit is flashed with a 0.5 second interval between pulses. There is a 2 second pause before the second digit is flashed, which also has a 0.5 second interval between pulses. There is a 5 second pause between each display of an LFC.
Each LFC is flashed five times after which the air bag indictor will remain lit for the remainder of the key-on cycle. If there are multiple LFCs, each LFC will flash in order of priority.
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The fault could be in the air bag circuits, the canopy circuits, the pretensioner circuit on the seat belts, etc.
Report back with code.

here's some of system.

SECTION 501-20B: Supplemental Restraint System 2003 Expedition/Navigator Workshop Manual
DESCRIPTION AND OPERATION Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) The air bag supplemental restraint system (SRS) is designed to provide increased collision protection for front seat and second row outboard occupants in addition to that provided by the three-point safety belt system. Safety belt use is necessary to obtain the best occupant protection and to receive the full advantage of the SRS.
This vehicle line contains dual stage deployment (advanced restraint system) driver and front passenger air bag modules. These vehicles can also be equipped with optional safety canopies that deploy from the A-pillar to the C-pillar upon a side impact or if a rollover condition is detected. If equipped with safety canopies, a unique restraints control module (RCM) is used.
See the following illustration for deployable component location.
Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) Deployable Components Item Part Number Description 1 611D10 Passenger air bag module 2 042D94 Passenger side safety canopy module 3 042D95 Driver side safety canopy module 4 61203 Driver safety belt buckle and pretensioner 5 043B13 Driver air bag module 6 14A664 Clockspring 7 61202 Passenger safety belt buckle and pretensioner


Item Part Number Description 1 14B321 Restraints control module (RCM) 2 14B345 Second row, C-pillar side impact sensor 3 14B345 Second row, C-pillar side impact sensor 4 14B416 Driver seat track position sensor 5 14B345 Front row, driver door, side impact sensor 6 14B006 Front impact severity sensor 7 14B345 Front row, passenger door, side impact sensor

If a concern is detected, the air bag control module will communicate by flashing the warning indicator. A diagnostic trouble code (DTC) is logged by the air bag control module in a nonvolatile memory. For additional information, refer to Diagnosis and Testing in this section.
Lamp Fault Codes (LFC)
Item Part Number Description 1 One flash cycle: Driver air bag trouble code 2 Two flash cycle: Passenger air bag trouble code 3 Three flash cycle: Trouble code common to both driver and passenger air bag circuit 4 Four flash cycle: Safety belt pretensioner trouble code common to both driver and passenger pretensioner circuits 5 Five flash cycle: Driver side air bag trouble code 6 Six flash cycle: Passenger side air bag trouble code 7 Not used 8 Not used

Anything's possible, but don't buy the car if this condition persists. If the airbag was damaged, the repair cost is quite high.
And you will not be able to pass inspection if the seat belt light remains lit.

Passenger Air Bag Deactivation (PAD) Switch
The passenger air bag deactivation (PAD) switch:

• is located on the instrument panel to the right of the climate controls.
• contains a light emitting diode (LED) that indicates when the PAD switch is activated (passenger air bag disabled).
• allows the passenger air bag deployment circuit to be disabled using the ignition key.
• should be used whenever a child safety seat is being used in the front passenger seating position.

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Prove Out the System
Prove out the system means to turn the ignition switch from the OFF to the RUN position and visually monitor the air bag indicator with the air bag modules installed. The air bag indicator will light continuously for approximately six seconds and then turn off. If an air bag supplemental restraint system (SRS) fault is present, the air bag indicator will either:

• fail to light.
• remain lit continuously.
• flash.

The flashing might not occur until approximately 30 seconds after the ignition switch has been turned from the OFF to the RUN position. This is the time required for the restraints control module (RCM) to complete the testing of the SRS. If the air bag indicator is inoperative and an SRS fault exists, a chime will sound in a pattern of five sets of five tone bursts. If this occurs, the air bag indicator will need to be repaired before diagnosis can continue.
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Active Commands
This command allows the technician to verify operation of the air bag indicator, passenger air bag deactivation (PAD) lamp and chime. When the air bag output command is executed, the indicator, the PAD lamp, chime and the chime are activated simultaneously for approximately four seconds. All devices are deactivated automatically.