Mazda CX 7. Manual - part 304

ON-BOARD DIAGNOSTIC 

08-02–11

08-02

End Of Sie

DTC B1017

id080200820000

Diagnostic procedure

End Of Sie

3

INSPECT FLOOR

• Visually inspect the installation parts of the 

passenger-side seat for the following:

— Abnormal floor deformation

— Installation hole of passenger-side seat is 

improperly positioned

• Is the floor normal?

Yes

Go to the next step.

No

Repair floor deformation.

• After repair, perform seat weight sensor calibration 

and reperform the DTC inspection. If the DTC is 
displayed even though the floor has been repaired, go 
the next step. (See 08-10-12 SEAT WEIGHT 
SENSOR CALIBRATION.)

4

INSPECT SEAT WEIGHT SENSOR CONTROL 
MODULE

• Replace the seat weight sensor.

• After replacement, perform seat weight 

sensor calibration. (See 08-10-12 SEAT 
WEIGHT SENSOR CALIBRATION.)

• Reperform the DTC inspection.

• Is DTC B1013 indicated?

Yes

Replace the seat weight sensor control module.
(See 08-10-11 SEAT WEIGHT SENSOR CONTROL 
MODULE REMOVAL/INSTALLATION.)

• After replacement, perform seat weight sensor 

calibration and reperform the DTC inspection. If the 
DTC is displayed even though the seat weight sensor 
control module has been replaced, replace the SAS 
control module. (See 08-10-10 SAS CONTROL 
MODULE REMOVAL/INSTALLATION.)

No

DTC troubleshooting completed.

STEP

INSPECTION

ACTION

DTC B1017

Deployment prohibited because configuration is not set

DETECTION 

CONDITION

Warning
• Detection conditions are for understanding the DTC outline before performing an inspection. 

Performing an inspection according to only the detection conditions may cause injury due to 
an operating error, or damage the system. When performing an inspection, always follow the 
inspection procedure.

• SAS control module configuration has not been set.

POSSIBLE 

CAUSE

• SAS control module configuration has not been set

• SAS control module malfunction

STEP

INSPECTION

ACTION

1

CONFIGURATION

• Using the M-MDS perform SAS control 

module configuration. (See 08-10-11 SAS 
CONTROL MODULE CONFIGURATION.)

• Turn the ignition switch to the ON position.

• Is DTC B1017 indicated?

Yes

[Present malfunction diagnosis]

• When only DTC B1017 is displayed:

— Go to the next step.

• When DTCs except B1017 are also displayed:

— Perform troubleshooting according to the 

corresponding DTC inspection (except DTC 
B1017).

[Past malfunction diagnosis]

• DTC troubleshooting completed.

No

DTC troubleshooting completed.

2

INSPECT SAS CONTROL MODULE

• Using the M-MDS perform SAS control 

module configuration. (See 08-10-11 SAS 
CONTROL MODULE CONFIGURATION.)

• Turn the ignition switch to the ON position.

• Is DTC B1017 indicated?

Yes

[Present malfunction diagnosis]

• Replace the SAS control module.

(See 08-10-10 SAS CONTROL MODULE REMOVAL/
INSTALLATION.)

[Past malfunction diagnosis]

• DTC troubleshooting completed.

No

DTC troubleshooting completed.

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ON-BOARD DIAGNOSTIC 

08-02–12

DTC B1144, B1145

id080200809800

Diagnostic procedure

DTC

B1144

Driver-side side air bag sensor No. 2 system internal circuit disabled

B1145

Driver-side side air bag sensor No. 2 system communication error

DETECTION 

CONDITION

Warning
• Detection conditions are for understanding the DTC outline before performing an inspection. 

Performing an inspection according to only the detection conditions may cause injury due to 
an operating error, or damage the system. When performing an inspection, always follow the 
inspection procedure.

• Malfunction in wiring harness between driver-side side air bag sensor No. 2 and SAS control module

• Malfunction in driver-side side air bag sensor No. 2 circuit

POSSIBLE 

CAUSE

• Open or short circuit in wiring harness between driver-side side air bag sensor No. 2 and SAS control 

module

• Driver-side side air bag sensor No. 2 malfunction (Including incorrect assembly)

• SAS control module malfunction

STEP

INSPECTION

ACTION

1

INSPECT DRIVER-SIDE SIDE AIR BAG 
SENSOR NO. 2 CONNECTOR

Warning
• Handling the air bag system 

components improperly can 
accidentally deploy the air bag 
modules and pre-tensioner seat belts, 
which may seriously injure you. Read 
the service warnings and cautions 
before handling the air bag system 
components.
 (See 08-10-3 AIR BAG SYSTEM 
SERVICE WARNINGS.)
 (See 08-10-5 AIR BAG SYSTEM 
SERVICE CAUTIONS.)

• Turn the ignition switch to the LOCK position.

• Disconnect the negative battery cable and 

wait for 1 min or more.

• Remove the trunk side trim (driver-side).

(See 09-17-24 TRUNK SIDE TRIM 
REMOVAL/INSTALLATION.)

• Disconnect the driver-side side air bag 

sensor No. 2 connector.

• Is there any malfunction of the driver-side 

side air bag sensor No. 2 connector?

Yes

Replace the air bag wiring harness.

No

Go to the next step.

A

B

*

*

*

*

*

*

*

*

*

*

*

*

*

3T

3U

*

3W

3X

SAS CONTROL MODULE WIRING 

HARNESS-SIDE CONNECTOR

DRIVER-SIDE SIDE AIR BAG SENSOR NO. 2 

WIRING HARNESS-SIDE CONNECTOR

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ON-BOARD DIAGNOSTIC 

08-02–13

08-02

End Of Sie

2

INSPECT WIRING HARNESS BETWEEN 
DRIVER-SIDE SIDE AIR BAG SENSOR NO. 2 
AND SAS CONTROL MODULE

• Turn the ignition switch to the LOCK position.

• Disconnect the negative battery cable and 

wait for 1 min or more.

• Disconnect the driver and passenger-side 

front seat connectors.

• Remove the C-pillar trim.

(See 09-17-17 C-PILLAR TRIM REMOVAL/
INSTALLATION.)

• Remove the D-pillar trim.

(See 09-17-18 D-PILLAR TRIM REMOVAL/
INSTALLATION.)

• Disconnect the driver and passenger-side 

curtain air bag module connectors.

• Remove the console.

(See 09-17-13 CONSOLE REMOVAL/
INSTALLATION.)

• Disconnect the SAS control module 

connector.

• Disconnect the driver-side side air bag 

sensor No. 2 connector.

• Connect the negative battery cable.

• Inspect the wiring harnesses between SAS 

control module terminal 3X and driver-side 
side air bag sensor No. 2 terminal A, SAS 
control module terminal 3W and driver-side 
side air bag sensor No. 2 terminal B for the 
following: 
— Short to ground

— Short to power supply

— Open circuit

• Is the wiring harness normal?

Yes

Replace the driver-side side air bag sensor No. 2, then go 
to the next step.
 (See 08-10-14 SIDE AIR BAG SENSOR NO. 2 
REMOVAL/INSTALLATION.)

No

Replace the air bag wiring harness.

3

INSPECT SAS CONTROL MODULE

• Turn the ignition switch to the LOCK position.

• Disconnect the negative battery cable and 

wait for 1 min or more.

• Connect the SAS control module connector.

• Connect the driver-side side air bag sensor 

No. 2 connector.

• Are DTCs B1144, B1145 indicated?

Yes

[Present malfunction diagnosis]

• Replace the SAS control module.

(See 08-10-10 SAS CONTROL MODULE REMOVAL/
INSTALLATION.)

[Past malfunction diagnosis]

• DTC troubleshooting completed.

No

DTC troubleshooting completed.

STEP

INSPECTION

ACTION

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ON-BOARD DIAGNOSTIC 

08-02–14

DTC B1146, B1147

id080200809900

Diagnostic procedure

DTC

B1146

Passenger-side side air bag sensor No. 2 system internal circuit disabled

B1147

Passenger-side side air bag sensor No. 2  system communication error

DETECTION 

CONDITION

Warning
• Detection conditions are for understanding the DTC outline before performing an inspection. 

Performing an inspection according to only the detection conditions may cause injury due to 
an operating error, or damage the system. When performing an inspection, always follow the 
inspection procedure.

• Malfunction in wiring harness between passenger-side side air bag sensor No. 2 and SAS control 

module

• Malfunction in passenger-side side air bag sensor No. 2 circuit

POSSIBLE 

CAUSE

• Open or short circuit in wiring harness between passenger-side side air bag sensor No. 2 and SAS 

control module

• Passenger-side side air bag sensor No. 2 malfunction (Including incorrect assembly)

• SAS control module malfunction

STEP

INSPECTION

ACTION

1

INSPECT PASSENGER-SIDE SIDE AIR BAG 
SENSOR NO. 2 CONNECTOR

Warning
• Handling the air bag system 

components improperly can 
accidentally deploy the air bag 
modules and pre-tensioner seat belts, 
which may seriously injure you. Read 
the service warnings and cautions 
before handling the air bag system 
components.
 (See 08-10-3 AIR BAG SYSTEM 
SERVICE WARNINGS.)
 (See 08-10-5 AIR BAG SYSTEM 
SERVICE CAUTIONS.)

• Turn the ignition switch to the LOCK position.

• Disconnect the negative battery cable and 

wait for 1 min or more.

• Remove the trunk side trim (passenger-side).

(See 09-17-24 TRUNK SIDE TRIM 
REMOVAL/INSTALLATION.)

• Disconnect the passenger-side side air bag 

sensor No. 2 connector.

• Is there any malfunction of the passenger-

side side air bag sensor No. 2 connector?

Yes

Replace the air bag wiring harness.

No

Go to the next step.

A

B

*

*

*

*

*

*

*

*

*

*

*

*

*

3T

3U

*

3W

3X

SAS CONTROL MODULE WIRING 

HARNESS-SIDE CONNECTOR

PASSENGER-SIDE SIDE AIR BAG SENSOR NO. 2 

WIRING HARNESS-SIDE CONNECTOR

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