Mazda CX-9 Grand Touring. Manual - part 15

DTC B1059, B2229, B2231, B2233, B2235 

DTC B1059, B2229, B2231, B2233, B2235 DETECTION CONDITION AND POSSIBLE CAUSE 

module terminal 1Q and clock spring terminal 
1B, SAS control module terminal 1U and clock 
spring terminal 1A for the following: 



Short to ground  



Short to power supply  



Open circuit  



Is the wiring harness normal?  

No

Replace the air bag wiring harness.

DTC

B1059 Passenger-side air bag module (inflator No.2) and other air bag module circuits short
B2229 Passenger-side air bag module (inflator No.2) circuit short to body ground
B2231 Passenger-side air bag module (inflator No.2) circuit short to power supply
B2233 Passenger-side air bag module (inflator No.2) circuit resistance high
B2235 Passenger-side air bag module (inflator No.2) circuit resistance low

DETECTION 

CONDITION 



Resistance other than 1.0-9.7 ohms detected in passenger-side side air bag module 
circuit  



Malfunction in wiring harness between passenger-side air bag module (inflator No.2) 
and SAS control module  

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.  

POSSIBLE 

CAUSE 



Open or short circuit in wiring harness between passenger-side air bag module 

(inflator No.2) and SAS control module  



Passenger-side air bag module malfunction  



SAS control module malfunction  

 

2008 Mazda CX-9 Grand Touring 

2008 RESTRAINTS On-Board Diagnostic (Restraints) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:18:47 AM

Page 57 

© 2005 Mitchell Repair Information Company, LLC. 

DIAGNOSTIC PROCEDURE 

DTC B1059, B2229, B2231, B2233, B2235 DIAGNOSTIC PROCEDURE 

STEP

INSPECTION

ACTION

1

INSPECT PASSENGER-SIDE AIR BAG 
MODULE (INFLATOR NO.2)  



Using the M-MDS, verify the following 
PID/DATA monitor. 

(See PID/DATA MONITOR TABLE.) 



RES_AB2_P  



Is the resistance of the passenger-side air bag 
module normal? 



Resistance: 1.0-9.7 ohms  

Yes

Replace the SAS control module. (See 
SAS CONTROL MODULE 
REMOVAL/INSTALLATION .)

No

Go to the next step.

INSPECT PASSENGER-SIDE AIR BAG 
MODULE (INFLATOR 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 air bag 
system service warnings and cautions before 
handling the air bag system components. 

Yes Replace the air bag wiring harness.

 

2008 Mazda CX-9 Grand Touring 

2008 RESTRAINTS On-Board Diagnostic (Restraints) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:18:47 AM

Page 58 

© 2005 Mitchell Repair Information Company, LLC. 

2

 



Turn the ignition switch to the LOCK position.  



Disconnect the negative battery cable and wait 
for 1 min or more.  



Remove the glove compartment. (See GLOVE 
COMPARTMENT 
REMOVAL/INSTALLATION .)  



Disconnect the passenger-side air bag module 
connector. (See PASSENGER-SIDE AIR BAG 
MODULE REMOVAL/INSTALLATION .)  



Is there any malfunction of the passenger-side 
air bag module connector?  

(See AIR BAG SYSTEM SERVICE 
WARNINGS .) 

(See AIR BAG SYSTEM SERVICE 
CAUTIONS .) 

No

Go to the next step.

3

VERIFY WHETHER MALFUNCTION IS IN 
PASSENGER-SIDE AIR BAG MODULE 
(INFLATOR NO.2) OR RELATED WIRING 
HARNESS  



Connect the leads of the SST (Fuel and 
thermometer checker) or apply 2-ohm resistance 
to passenger-side air bag module (inflator No.1) 
connector terminals 1A and  



1B, and passenger-side air bag module (inflator 
No.2) connector terminals 2A and 2B.  



Set the resistance of the SST (Fuel and 
thermometer checker) to the 2-ohm position.  



Connect the negative battery cable.  



Turn the ignition switch to the ON position.  



Are DTCs B1059, B2229, B2231, B2233 and/or 
B2235 indicated?  

Yes Go to the next step.

No

Replace the passenger-side air bag 

module. 

(See PASSENGER-SIDE AIR BAG 

MODULE 

REMOVAL/INSTALLATION .)

INSPECT WIRING HARNESS BETWEEN 
PASSENGER-SIDE AIR BAG MODULE AND 
SAS CONTROL MODULE  



Turn the ignition switch to the LOCK position.  



Disconnect the negative battery cable and wait 
for 1 min or more.  



Remove the column cover. (See COLUMN 
COVER REMOVAL/INSTALLATION .)  

 

2008 Mazda CX-9 Grand Touring 

2008 RESTRAINTS On-Board Diagnostic (Restraints) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:18:47 AM

Page 59 

© 2005 Mitchell Repair Information Company, LLC. 

DTC B105A 

DTC B105A DETECTION CONDITION AND POSSIBLE CAUSE 

4



Disconnect the clock spring connector. (See 
COMBINATION SWITCH 
REMOVAL/INSTALLATION .)  



Disconnect the driver and passenger-side front 
seat connectors. (See FRONT SEAT 
REMOVAL/INSTALLATION .)  



Disconnect the driver and passenger-side curtain 
air bag module connectors. (See CURTAIN 
AIR BAG MODULE 
REMOVAL/INSTALLATION .)  



Remove the B-pillar lower trim. (See B-
PILLAR LOWER TRIM 
REMOVAL/INSTALLATION .)  



Disconnect the driver and passenger-side pre-
tensioner seat belt connectors. (See FRONT 
SEAT BELT 
REMOVAL/INSTALLATION .)  



Disconnect the SAS control module connectors. 
(See SAS CONTROL MODULE 
REMOVAL/INSTALLATION .)  



Inspect the wiring harness between SAS control 
module terminal 1V and passenger-side air bag 
module terminal 2A, SAS control module 
terminal 1R and passenger-side air bag module 
terminal 2B for the following: 



Short to ground  



Short to power supply  



Open circuit  



Is the wiring harness normal?  

Yes

Replace the SAS control module. (See 
SAS CONTROL MODULE 
REMOVAL/INSTALLATION .)

No

Replace the air bag wiring harness.

DTC B105A

SAS control module activation (deployment) control frequency error

DETECTION 

CONDITION 



The SAS control module has enabled the air bag module or pre-tensioner seat 
belt to operate (deploy) five times or more.  

WARNING:



Detection conditions are for understanding the DTC outline before 
performing an inspection. Performing an inspection with only detection 
conditions may cause injury due to an operating error, or damage the 
system. When performing an inspection, always follow the inspection 
procedure.  

 

2008 Mazda CX-9 Grand Touring 

2008 RESTRAINTS On-Board Diagnostic (Restraints) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:18:47 AM

Page 60 

© 2005 Mitchell Repair Information Company, LLC.