Ford Falcon. Manual — part 477
501-20b-123
Occupant Restraints — Passive
501-20b-123
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST U : NO COMMUNICATION WITH THE RESTRAINTS CONTROL MODULE (RCM)
Test Step
Result / Action to Take
U1
CHECK THE RCM C189a PIN 11 FOR DAMAGE
Yes
WARNING:
If the supplemental restraint system (SRS) is
Go to U2.
being serviced, the system must be deactivated and restraint system
No
diagnostic tools must be installed. Refer to Airbag and Safety Belt
REPAIR RCM C189a or RCM C189a pin 11 as
Pretensioner Supplemental Restraint System (SRS) in this section.
necessary. RETEST the communication to the
The airbag restraint system diagnostic tools must be removed and
RCM. REACTIVATE the system. REFER to
the airbag modules reconnected when the system is reactivated to
Airbag and Safety Belt Pretensioner
avoid non-deployment in a collision, resulting in possible personal
Supplemental Restraint System (SRS) in this
injury.
section.
WARNING:
Never probe the connectors on the airbag
module. Doing so can result in airbag deployment, which can result in
personal injury.
WARNING:
The safety belt buckle pretensioner is a
pyrotechnic device. Never probe a pretensioner electrical connector.
Doing so could result in pretensioner or airbag deployment and could
result in personal injury.
WARNING:
Never probe the electrical connector on a side
airbag module. Doing so can result in side airbag deployment.
NOTE:
Diagnostics or repairs are not to be performed on a seat
equipped with a seat side airbag with the seat in the vehicle. Prior to
attempting to diagnose or repair a seat concern when equipped with a seat
side airbag, the seat must be removed from the vehicle and the restraint
system diagnostic tools must be installed in the seat side airbag 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.
Key in OFF position.
Deactivate the system. Refer to Airbag and Safety Belt Pretensioner
Supplemental Restraint System (SRS) in the Diagnosis and Testing
portion of this section.
Disconnect RCM C189a.
Inspect RCM C189a, harness side and RCM C189a, component side,
pin 11 for damage.
Are RCM C189a and RCM C189a pin 11 OK?
U2
CHECK DLC PIN FOR DAMAGE
Inspect DLC diagnostics connector and pin for damage.
Yes
Go to U3.
Are DLC diagnostics connector and pin OK?
No
REPAIR DLC or pin as necessary. RETEST the
communication to the RCM. REACTIVATE the
system. REFER to Airbag and Safety Belt
Pretensioner Supplemental Restraint System
(SRS) in this section.
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501-20b-124
Occupant Restraints — Passive
501-20b-124
DIAGNOSIS AND TESTING (Continued)
Test Step
Result / Action to Take
U3
CHECK THE IGNITION CIRCUIT 16 (R/G) FOR AN OPEN
Key in ON position.
Yes
Go to U4.
Measure the voltage between RCM C189a pin 12, circuit 16 (R/G),
harness side and ground.
No
REPAIR circuit 16 (R/G). RETEST the
Is the voltage greater than 10 volts?
communication to the RCM. REACTIVATE the
system. REFER to Airbag and Safety Belt
Pretensioner Supplemental Restraint System
(SRS) in this section.
U4
CHECK GROUND CIRCUIT 1203 (B/G) FOR AN OPEN
Key in OFF position.
Yes
Go to U5.
Measure the resistance between RCM C189a pin 16, circuit 1203
(B/G), harness side and a sheet metal ground near the RCM.
No
REPAIR circuit 1203 (B/G). RETEST the
Is the resistance less than 1 ohm?
communication to the RCM. REACTIVATE the
system. REFER to Airbag and Safety Belt
Pretensioner Supplemental Restraint System
(SRS) in this section.
U5
CHECK CIRCUIT 70 (SB/W) FOR AN OPEN
Measure the resistance between RCM C189a pin 11, circuit 70
Yes
(SB/W), harness side and DLC pin, circuit 70 (SB/W), harness side.
Go to U6.
Is the resistance less than 5 ohms?
No
REPAIR circuit 70 (SB/W). RETEST the
communication to the RCM. REACTIVATE the
system. REFER to Airbag and Safety Belt
Pretensioner Supplemental Restraint System
(SRS) in this section.
U6
CONFIRM THE RCM FAULT
Yes
NOTE:
Make sure the safety belt pretensioner restraint system
Fault corrected. REACTIVATE the system.
diagnostic tools, sensor electrical connectors, and the RCM electrical
REFER to Airbag and Safety Belt Pretensioner
connector are connected before carrying out the on-demand self test. If
Supplemental Restraint System (SRS) in this
not, erroneous DTCs will be recorded.
section.
Connect RCM C189a.
No
Enter the following diagnostic mode on the diagnostic tool:
INSTALL a new RCM. RETEST the
communication to the RCM. REACTIVATE the
On-Demand Self Test
system. REFER to Airbag and Safety Belt
Did the scan tool communicate with the RCM?
Pretensioner Supplemental Restraint System
(SRS) in this section.
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501-20b-125
Occupant Restraints — Passive
501-20b-125
GENERAL PROCEDURES
3. Inspect the entire vehicle for damage, including
Inspection and Repair After a
the following components:
Supplemental Restraint System (SRS)
steering column and clockspring.
Deployment
instrument panel knee bolsters and mounting
points.
WARNING: If the supplemental restraint
instrument panel braces and brackets.
system (SRS) is being serviced, the system must
instrument panel and mounting points.
be deactivated and restraint system diagnostic
tools must be installed. For additional information,
seats and seat mounting points.
refer to Airbag and Safety Belt Pretensioner
safety belts, safety belt buckles, and safety
Supplemental Restraint System (SRS) in this
belt retractors. For additional information,
section.
refer to Section 501-20A.
The airbag restraint system diagnostic tools must
supplemental restraint system (SRS) wiring,
be removed and the airbag modules reconnected
wiring harnesses, and connectors.
when the system is reactivated to avoid
non-deployment in a collision, resulting in
4. After carrying out the review and inspection of the
possible personal injury.
entire vehicle for damage, repair or install new
components as needed.
NOTE: Diagnostics or repairs are not to be carried out
on a seat equipped with a seat side airbag with the
Airbag Disposal — Deployed Airbag
seat in the vehicle. Prior to attempting to diagnose or
repair a seat concern when equipped with a seat side
WARNING: Always wear safety glasses when
airbag, the seat must be removed from the vehicle
repairing an airbag supplemental restraint system
and the restraint system diagnostic tools must be
(SRS) vehicle and when handling an airbag
installed in the seat side airbag electrical connectors.
module. This will reduce the risk of injury in the
The restraint system diagnostic tools must be
event of an accidental deployment.
removed prior to operating the vehicle over the
road.
1. Dispose of the deployed airbag modules and
safety belt pretensioners in the same manner as
NOTE: After diagnosing or repairing an SRS, the
any other part to be scrapped.
restraint system diagnostic tools must be
removed before operating the vehicle over the
Airbag Disposal — Undeployed,
road.
Inoperative
NOTE: After diagnosing or repairing a seat system,
the restraint system diagnostic tools must be
WARNING: Carry a live airbag module with
removed before operating the vehicle over the
the airbag and trim cover or deployment door
road.
pointed away from your body. This will reduce the
risk of injury in the event of an accidental
NOTE: The SRS must be fully operational and free of
deployment.
faults before releasing the vehicle to the customer.
NOTE: All inoperative airbag modules and safety belt
1. When any deployable device (driver airbag,
pretensioners have been placed on the Mandatory
passenger airbag, seat side airbag, safety belt
Return List. All discolored or damaged airbag
pretensioner, etc.) or combination of devices are
modules must be treated the same as any inoperative
deployed and/or the RCM has the DTC B1231
live airbag being returned.
(Crash Data Memory Full) in memory, the repair
of the vehicle’s supplemental restraint system
1. Remove the inoperative component from the
(SRS) is to include the removal of all deployed
vehicle. For additional information, refer to the
devices and the installation of new deployable
appropriate airbag procedure in this section or to
devices, the removal and installation of new
Section 501-20A for the safety belt/pretensioner
impact sensors, and the removal and installation
assembly.
of a new RCM.
NOTE: When installing a new airbag module, a
2. When any damage to the impact sensor mounting prepaid return postcard is provided with the
points or mounting hardware has occurred, repair replacement airbag module. The serial number for the
or install new mounting points and mounting
new part and the vehicle registration number (VRN)
hardware as needed.
must be recorded and sent to Ford Motor Company.
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501-20b-126
Occupant Restraints — Passive
501-20b-126
GENERAL PROCEDURES (Continued)
2. If installing a new airbag module:
2. Cut the clockspring wire harness. Remove the
sheathing over the wires.
1. For a new driver airbag module, record the
necessary information and return the
inoperative driver airbag module to Ford
Motor Company.
2. For a new passenger airbag module, record
the necessary information and return the
inoperative passenger airbag module to Ford
Motor Company.
3. For a new seat mounted airbag module
module, record the necessary information and
return the inoperative side airbag module to
Ford Motor Company.
Airbag Disposal — Driver,
Undeployed, Scrapped Vehicle
3. Strip the insulation from all four wires. Perform an
Remote Deployment
ohms check from the stripped end of each wire to
the connector end. If any of the four wires reads
WARNING: Always wear safety glasses when
more than 0.5 ohm use another connector.
repairing an airbag supplemental restraint system
(SRS) vehicle and when handling an airbag
CAUTION: The clockspring electrical
module. This will reduce the risk of injury in the
connectors are unique and cannot be reversed
event of an accidental deployment.
when connected to the driver airbag module.
Match the electrical connector key to the keyway
WARNING: Never probe the connectors on
in the driver airbag module. Do not force the
the airbag module. Doing so can result in airbag
electrical connectors into the driver airbag
deployment, which can result in personal injury.
module.
4. Match the driver airbag module electrical
WARNING: Carry a live airbag module with
connector key to the keyway in the driver airbag
the airbag and trim cover pointed away from your
module. Connect the two driver airbag module
body. This will reduce the risk of injury in the
electrical connectors to the driver airbag module.
event of an accidental deployment.
WARNING: Do not set a live airbag module
down with the trim cover face down. 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
meters (20 feet) away to ensure personal safety.
Due to the loud report which occurs when the
airbag is deployed, hearing protection is required.
WARNING: To reduce the risk of serious
personal injury, read and follow all warnings,
cautions, notes and instructions in the driver
airbag module removal and installation procedure.
1. Remove the driver airbag module from the
vehicle. For additional information, refer to Driver
airbag Module in this section.
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