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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

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

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?

CHECK DLC PIN FOR DAMAGE

Inspect DLC diagnostics connector and pin for damage.

Yes

Go to U3.

Are DLC diagnostics connector and pin OK?

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

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.

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.

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.

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.

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?

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.

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.

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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