Ford Galaxy / Ford S-MAX. Manual — part 982

Deactivate the SRS.

1

Ignition switch in position II.

2

Carry out the self-test with the simulators
installed.

3

Does the system prove out correctly?
Yes

GO to BJ2

.

No

GO to BJ3

.

BJ2: CHECK THE DRIVER SIDE AIR CURTAIN MODULE SQUIB RESISTANCE

Connect the test and deployment lead to the
driver side air curtain module.

1

Select DMM specific on the Ford approved
diagnostic tool.

2

Connect the test and deployment lead to the
Ford approved diagnostic tool.

3

Measure the resistance of the driver side air
curtain module squib.

4

Is the resistance between 2 and 3 ohms?
Yes

REPEAT the self-test, CLEAR the DTCs.
REACTIVATE the system.

No

INSTALL a new driver side air curtain module.
REFER to:

Side Air Curtain Module - VIN Plate

Body Style Code: S

(501-20B Supplemental

Restraint System, Removal and Installation).
REPEAT the self-test, CLEAR the DTCs.
REACTIVATE the system.

BJ3: CHECK THE DRIVER SIDE AIR CURTAIN WIRING HARNESS FOR LOW
RESISTANCE

Ignition switch in position 0.

1

Disconnect Driver Side Air Curtain Simulator.

2

Disconnect RCM C3R114.

3

Measure the resistance between the RCM
C3R114 pin 17, circuit CR109A (BN/BU), harness

side and the RCM C3R114 pin 18, circuit RR109A
(BU/GN), harness side.

4

Is the resistance greater than 10,000 ohms?
Yes

REPEAT the self-test, CLEAR the DTCs.
REACTIVATE the system.

No

REPAIR circuit circuit CR109A (BN/BU) and circuit
RR109A (BU/GN). REPEAT the self-test, CLEAR

the DTCs. REACTIVATE the system.

PINPOINT TEST BK : DTC B1129 11: PASSENGER SIDE AIR CURTAIN
CIRCUIT SHORT TO GROUND

TEST CONDITIONS

DETAILS/RESULTS/ACTIONS

BK1: CHECK THE PASSENGER SIDE AIR CURTAIN CIRCUIT

WARNING: To avoid accidental deployment, the RCM backup power supply must be

depleted. Wait at least one minute after disconnecting the battery ground cable(s) before
commencing any repair or adjustment to the SRS, or any component(s) adjacent to the
SRS sensors. Failure to follow these instructions may result in personal injury.
NOTE: Use a digital multimeter for all electrical measurements.

Deactivate the SRS.

1

Ignition switch in position II.

2

Carry out the self-test with the simulators
installed.

3

Does the system prove out correctly?
Yes

GO to BK2

.

No

GO to BK3

.

BK2: CHECK THE PASSENGER SIDE AIR CURTAIN MODULE

WARNING: Do not proceed with the test unless using the Ford approved diagnostic

tool. Failure to follow this instruction may result in personal injury.

Connect the test and deployment lead to the
passenger side air curtain module.

1

Select DMM specific on the Ford approved
diagnostic tool.

2

Connect the test and deployment lead to the Ford
approved diagnostic tool.

3

Measure the resistance between each of the
terminals and the passenger side air curtain

module casing.

4

Are the resistances greater than 10,000 ohms?
Yes

REPEAT the self-test, CLEAR the DTCs.
REACTIVATE the system.

No

INSTALL a new passenger side air curtain module.

REFER to:

Side Air Curtain Module - VIN Plate

Body Style Code: S

(501-20B Supplemental

Restraint System, Removal and Installation).
REPEAT the self-test, CLEAR the DTCs.
REACTIVATE the system.

BK3: CHECK THE PASSENGER SIDE AIR CURTAIN WIRING HARNESS FOR A SHORT TO
GROUND

Ignition switch in position 0.

1

Disconnect RCM C3R114.

2

Disconnect Passenger Side Air Curtain Module

3

Simulator.

Measure the resistance between the:

RCM C3R114 pin 9, circuit RR111A (YE/VT),
harness side and ground.
RCM C3R114 pin 10, circuit CR111A (BN/WH),
harness side and ground.

4

Are the resistances greater than 10,000 ohms?
Yes

REPEAT the self-test, CLEAR the DTCs.
REACTIVATE the system.

No

REPAIR circuit CR111A (BN/WH) or circuit
RR111A (YE/VT). REPEAT the self-test, CLEAR the
DTCs. REACTIVATE the system.

PINPOINT TEST BL : DTC B1129 12: PASSENGER SIDE AIR CURTAIN
CIRCUIT SHORT TO BATTERY

TEST CONDITIONS

DETAILS/RESULTS/ACTIONS

BL1: CHECK THE PASSENGER SIDE AIR CURTAIN WIRING HARNESS FOR A SHORT TO
BATTERY OR IGNITION

WARNING: To avoid accidental deployment, the RCM backup power supply must be

depleted. Wait at least one minute after disconnecting the battery ground cable(s) before
commencing any repair or adjustment to the SRS, or any component(s) adjacent to the
SRS sensors. Failure to follow these instructions may result in personal injury.
NOTE: Use a digital multimeter for all electrical measurements.

Deactivate the SRS.

1

Disconnect Passenger Side Air Curtain Module
Simulator.

2

Disconnect RCM C3R114.

3

Ignition switch in position II.

4

Measure the voltage between the:

RCM C3R114 pin 9, circuit RR111A (YE/VT),
harness side and ground.
RCM C3R114 pin 10, circuit CR111A (BN/WH),
harness side and ground.

5

Is any voltage present?
Yes

REPAIR circuit CR111A (BN/WH) or circuit
RR111A (YE/VT). REPEAT the self-test, CLEAR the
DTCs. REACTIVATE the system.

No

CONNECT the passenger side air curtain module
simulator and the RCM. REPEAT the self-test,
CLEAR the DTCs. REACTIVATE the system.

PINPOINT TEST BM : DTC B1129 13: PASSENGER SIDE AIR CURTAIN
CIRCUIT OPEN CIRCUIT

TEST CONDITIONS

DETAILS/RESULTS/ACTIONS

BM1: CHECK THE PASSENGER SIDE AIR CURTAIN CIRCUIT RESISTANCE

WARNING: To avoid accidental deployment, the RCM backup power supply must be

depleted. Wait at least one minute after disconnecting the battery ground cable(s) before
commencing any repair or adjustment to the SRS, or any component(s) adjacent to the
SRS sensors. Failure to follow these instructions may result in personal injury.
NOTE: Use a digital multimeter for all electrical measurements.

Deactivate the SRS.

1

Ignition switch in position II.

2

Carry out the self-test with the simulators
installed.

3

Does the system prove out correctly?
Yes

GO to BM2

.

No

GO to BM3

.

BM2: CHECK THE PASSENGER SIDE AIR CURTAIN MODULE SQUIB RESISTANCE

WARNING: Do not proceed with this test unless using the Ford approved diagnostic

tool. Failure to follow this instruction may result in personal injury.

Connect the test and deployment lead to the
passenger side air curtain module.

1

Select DMM specific on the Ford approved
diagnostic tool.

2

Connect the test and deployment lead to the Ford
approved diagnostic tool.

3

Measure the resistance of the passenger side air
curtain module squib.

4

Is the resistance between 2 and 3 ohms?
Yes

REPEAT the self-test, CLEAR the DTCs.
REACTIVATE the system.

No

INSTALL a new passenger side air curtain module.
REFER to:

Side Air Curtain Module - VIN Plate

Body Style Code: S

(501-20B Supplemental

Restraint System, Removal and Installation).
REPEAT the self-test, CLEAR the DTCs.
REACTIVATE the system.

BM3: CHECK THE PASSENGER SIDE AIR CURTAIN WIRING HARNESS FOR OPEN
CIRCUIT OR HIGH RESISTANCE

Ignition switch in position 0.

1

Disconnect RCM C3R114.

2

Disconnect Passenger Side Air Curtain Module
Simulator.

3

Measure the resistance between the:

RCM C3R114 pin 9, circuit RR111A (YE/VT),
harness side and the passenger side air curtain
module C6R111 pin 2, circuit RR111A (YE/VT),

4