Ford Galaxy / Ford S-MAX. Manual — part 971

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 air bag module

casing.

4

Is the resistance greater than 10,000 ohms?
Yes

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

No

INSTALL a new passenger air bag module.
REFER to:

Passenger Air Bag Module

(501-20B

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

L3: CHECK THE PASSENGER AIR BAG WIRING HARNESS FOR A SHORT TO GROUND

Ignition switch in position 0.

1

Disconnect RCM C2R114-A.

2

Disconnect Passenger Air Bag Module
Simulator.

3

Measure the resistance between the:

RCM C2R114-A pin 9, circuit CR103A
(GY/BU), harness side and ground.
RCM C2R114-A pin 10, circuit RR103A
(VT/GN), 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 CR103A (GY/BU) or circuit
RR103A (VT/GN). REPEAT the self-test, CLEAR
the DTCs. REACTIVATE the system.

PINPOINT TEST M : DTC B0010 12: PASSENGER AIR BAG SHORT TO
BATTERY

TEST CONDITIONS

DETAILS/RESULTS/ACTIONS

M1: CHECK THE PASSENGER AIR BAG CIRCUIT FOR A SHORT TO BATTERY

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 Air Bag Module
Simulator.

2

Disconnect RCM C2R114-A.

3

Ignition switch in position II.

4

Measure the voltage between the:

RCM C2R114-A pin 9, circuit CR103A
(GY/BU), harness side and ground.
RCM C2R114-A pin 10, circuit RR103A
(VT/GN), harness side and ground.

5

Is any voltage present?
Yes

REPAIR circuit CR103A (GY/BU) or circuit
RR103A (VT/GN). REPEAT the self-test, CLEAR
the DTCs. REACTIVATE the system.

No

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

PINPOINT TEST N : DTC B0010 13: PASSENGER AIR BAG OPEN CIRCUIT

TEST CONDITIONS

DETAILS/RESULTS/ACTIONS

N1: CHECK THE PASSENGER AIR BAG 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 N2

.

No

GO to N3

.

N2: CHECK THE PASSENGER AIR BAG 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 air bag 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 air bag
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 air bag module.
REFER to:

Passenger Air Bag Module

(501-20B

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

N3: CHECK THE PASSENGER AIR BAG WIRING HARNESS FOR OPEN CIRCUIT OR HIGH
RESISTANCE

Ignition switch in position 0.

1

Disconnect RCM C2R114-A.

2

Disconnect Passenger Air Bag Module Simulator.

3

Measure the resistance between the:

RCM C2R114-A pin 9, circuit CR103A (GY/BU),
harness side and the passenger air bag
module C2R103 pin 1, circuit CR103A
(GY/BU), harness side.
RCM C2R114-A pin 10, circuit RR103A
(VT/GN), harness side and the passenger air
bag module C2R103 pin 2, circuit RR103A
(VT/GN), harness side.

4

Are the resistances less than 5 ohms?
Yes

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

No

REPAIR circuit CR103A (GY/BU) or circuit
RR103A (VT/GN). REPEAT the self-test, CLEAR
the DTCs. REACTIVATE the system.

PINPOINT TEST O : DTC B0010 19: PASSENGER AIR BAG CROSS LINK TO
ANOTHER FIRING CIRCUIT

TEST CONDITIONS

DETAILS/RESULTS/ACTIONS

O1: CHECK THE PASSENGER AIR BAG CIRCUITS

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 RCM C2R114-A.

2

Disconnect Passenger Air Bag Module Simulator.

3

Disconnect Inoperative Air Bag Module Simulator.

4

NOTE: Refer to the Wiring Diagrams for pin detail.

Measure the resistance between the:

RCM C2R114-A pin 9, circuit CR103A (GY/BU), harness side and the
inoperative air bag module circuits.
RCM C2R114-A pin 10, circuit RR103A (VT/GN), harness side and
the inoperative air bag module circuits.

5

Are the resistances greater than 10,000 ohms?
Yes

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

No

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

PINPOINT TEST P : DTC B0010 1A: PASSENGER AIR BAG CIRCUIT LOW
RESISTANCE

TEST CONDITIONS

DETAILS/RESULTS/ACTIONS

P1: CHECK THE PASSENGER AIR BAG 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 P2

.

No

GO to P3

.

P2: CHECK THE PASSENGER AIR BAG 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 air bag 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 air bag
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 air bag module.