FORD MUSTANG 2003 Workshop Manual

reactivated to avoid non-
deployment in a collision, resulting in
possible personal injury. NOTE: Diagnostics or repairs are not to
be performed on a seat equipped with a seat side air bag with the
seat in the vehicle. Prior to attempting to diagnose or repair a seat
concern when equipped with a seat side air bag, the seat must be
removed from the vehicle and the restraint system diagnostic tools
must be installed in the seat side air bag electrical connectors. The
restraint system diagnostic tools must be removed prior to
operating the vehicle over the road. 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.
z Key in OFF position.
z Deactivate the system. Refer to Air Bag Supplemental Restraint System (SRS) in the Diagnosis and Testing portion of this section.
z Key in OFF position.
z Disconnect: RCM C2041.
z Inspect RCM C2041, harness side and RCM C2041, component
side, pin 5 for damage.
z Are RCM C2041 and RCM C2041 pin 5 OK? REACTIVATE the
system.
P2 CHECK THE DLC CONNECTOR C251 AND CONNECTOR PIN 7
FOR DAMAGE z
Inspect DLC C251 and DLC C251 pin 7 for damage.
z Are DLC C251 and DLC C251 pin 7 OK? Yes
GO to
P3 .
No
REPAIR DLC C251
or DLC C251 pin 7
as necessary.
RETEST the
communication to
RCM.
RECONNECT the
system.
REACTIVATE the
system. PROVE
OUT the system.
REFER to Air Bag Supplemental
Restraint System
(SRS) in this
section. P3 CHECK CIRCUIT 70 (LB/WH) FOR SHORT TO BATTERY
z
Measure the voltage to ground at DLC C251 pin 7, circuit 70
(LB/WH).
z Can any voltage be measured? Yes
REPAIR the battery
short. RETEST the
communication to
RCM.
RECONNECT the
system.
REACTIVATE the
system. PROVE
OUT the system.
REFER to
Air Bag Supplemental
Restraint System
(SRS) in this
section. Klj . 44 ba
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No
GO to
P4 .
P4 CHECK CIRCUIT 70 (LB/WH) FOR SHORT TO GROUND
z
Measure the resistance to ground at DLC C251 pin 7, circuit 70
(LB/WH).
z Is the resistance less than 10,000 ohms? Yes
REPAIR the circuit.
RETEST the
communication to
RCM.
RECONNECT the
system.
REACTIVATE the
system. PROVE
OUT the system.
REFER to
Air Bag Supplemental
Restraint System
(SRS) in this
section.
No
GO to P5 .
P5 CHECK CIRCUIT 70 (LB/WH) FOR AN OPEN
z
Measure the resistance between RCM C2041 pin 5, circuit 70
(LB/WH), harness side and DLC C251 pin 7, circuit 70 (LB/WH),
harness side.
z Is the resistance less than 5 ohms? Yes
INSTALL a new
RCM. RETEST the
communication to
RCM.
RECONNECT the
system.
REACTIVATE the
system. PROVE
OUT the system.
REFER to
Air Bag Supplemental
Restraint System
(SRS) in this
section.
No
REPAIR the circuit.
RETEST the
communication to
RCM.
RECONNECT the
system.
REACTIVATE the
system. PROVE
OUT the system.
REFER to Air Bag Supplemental
Restraint System
(SRS) in this
section. Klj . 45 ba
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GENERAL PROCEDURES
Inspection and Repair After a Supplemental Restraint
System (SRS) Deployment
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 Supplemental Restraint System (SRS) 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.
NOTE: Diagnostics or repairs are not to be performed on a seat equipped with a seat side air bag with
the seat in the vehicle. Prior to attempting to diagnose or repair a seat concern when equipped with a
seat side air bag, the seat must be removed from the vehicle and the restraint system diagnostic tools
must be installed in the seat side air bag electrical connectors. The restraint system diagnostic
tools must be removed prior to operating the vehicle over the road.
NOTE: After diagnosing or repairing a 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.
1. When any deployable device (driver air bag, passenger air bag, seat side air bag, safety belt pretensioner, etc.) or combination of devices are deployed and/or the RCM has the DTC B1231
(Crash Data Memory Full) in memory, the repair of the vehicle's supplemental restraint system
(SRS) is to include the removal of all deployed devices and installation of new deployable
devices, the removal and installation of new impact sensors, and the removal and installation of
a new RCM.
2. When any damage to the impact sensor mounting points or mounting hardware has occurred, repair or install new mounting points and mounting hardware as needed.
3. When the driver air bag module has deployed a new clockspring must be installed.
4. Inspect the entire vehicle for damage, including the following components: zsteering column.
z instrument panel knee bolsters and mounting points.
z instrument panel braces and brackets.
z instrument panel and mounting points.
z seats and seat mounting points.
z safety belts, safety belt buckles, and safety belt retractors. For additional information,
refer to Section 501 - 20A .
z supplemental restraint system (SRS) wiring, wiring harnesses, and connectors.
5. After carrying out the review and inspection of the entire vehicle for damage, repair or install new components as needed.
SECTION 501-
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GENERAL PROCEDURES
Air Bag Disposal —
Deployed Air Bag
1. WARNING: Always wear safety glasses when repairing an air bag supplemental
restraint system (SRS) vehicle and when handling an air bag module. This will reduce the
risk of injury in the event of an accidental deployment.
Dispose of the deployed air bag modules and safety belt pretensioners in the same manner as
any other part to be scrapped.
SECTION 501-
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GENERAL PROCEDURES
Air Bag Disposal —
Undeployed Inoperative
WARNING: Always wear safety glasses when repairing an air bag supplemental restraint
system (SRS) 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 air bag module. Doing so can result in air
bag deployment, which can result in personal injury.
WARNING: Carry a live air bag module with the air bag and trim cover or deployment door
pointed away from your body. This will reduce the risk of injury in the event of an accidental
deployment.
NOTE: All inoperative air bag modules and safety belt pretensioners have been placed on the
Mandatory Return List. All discolored or damaged air bag modules must be treated the same as any
inoperative live air bag being returned.
1. Remove the inoperative component from the vehicle. For additional information, refer to the appropriate air bag procedure in this section.
2. NOTE: When installing a new air bag module, a prepaid return postcard is provided with the
replacement air bag module. The serial number for the new part and the vehicle identification
number (VIN) must be recorded and sent to Ford Motor Company.
If installing a new air bag module, record the necessary information and return the inoperative
air bag module to Ford Motor Company.
SECTION 501-
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GENERAL PROCEDURES
Air Bag Disposal —
Driver, Undeployed, Scrapped Vehicle
Remote Deployment WARNING: Always wear safety glasses when repairing an air bag supplemental restraint
system (SRS) vehicle and when handling an air bag module or safety belt
retractor/pretensioner assembly. This will reduce the risk of injury in the event of an accidental
deployment.
WARNING: Carry a live air bag module with the air bag and trim cover or deployment door
pointed away from your body. This will reduce the risk of injury in the event of an accidental
deployment.
WARNING: Remote deployment is to be performed outdoors with all personnel at least 6.1
meters (20 feet) away to ensure personal safety. Due to the loud report which occurs when the
air bag is deployed, hearing protection is required.
WARNING: Do not place the driver or passenger air bag module with the trim cover or
deployment door facing down, as the forces of the deploying air bag can cause it to ricochet
and cause personal injury.
1. Remove the driver air bag from the vehicle. For additional information, refer to Driver Air Bag Module in this section.
2. Cut and strip the wires at the driver air bag electrical connector.
3. Obtain two wires (20 gauge minimum) at least 6.1 meters (20 feet) long and attach one end of each wire to the stripped ends of the driver air bag module wires.
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4. Place the air bag module on a flat surface in an open outdoor area with the trim cover facing
upward.
5. Remain at least 6.1 meters (20 feet) away from the air bag module.
6. Deploy the air bag module by touching the other ends of the two wires to the terminals of a 12– volt battery.
7. To allow for cooling, wait at least ten minutes before approaching the deployed air bag.
8. Dispose of the deployed air bag module in the same manner as any other part to be scrapped. Klj . 2 ba
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