Mazda X-5. Manual - part 91

ON-BOARD DIAGNOSTIC 

08–02–1

08–02

08–02

ON-BOARD DIAGNOSTIC

ON-BOARD DIAGNOSTIC FUNCTION 

OUTLINE . . . . . . . . . . . . . . . . . . . . . . . .  08–02–1

ON-BOARD DIAGNOSTIC

FUNCTION  . . . . . . . . . . . . . . . . . . . . . .  08–02–2

Self-Malfunction Diagnostic 

Function  . . . . . . . . . . . . . . . . . . . . . . . 08–02–2

PID/Data Monitoring Function . . . . . . . . 08–02–5

End of Toc

ON-BOARD DIAGNOSTIC FUNCTION OUTLINE

E5U080200000N01

• The air bag system has an on-board diagnostic function to facilitate the system diagnosis.

• The on-board diagnostic function consists of the following functions: a malfunction detection function, which 

detects overall malfunctions in the air bag system-related parts; a memory function, which stores detected 
DTCs; a display function, which indicates system malfunctions by DTC display; a PID/data monitoring function, 
which reads out specific input/output signals.

• Using the WDS or equivalent, DTCs can be read out and deleted, and the PID/data monitoring function can be 

activated.

• The system has a fail-safe function to prevent the accidental activation of the air bags in case of an air bag 

system malfunction.

End Of Sie

ON-BOARD DIAGNOSTIC 

08–02–2

ON-BOARD DIAGNOSTIC FUNCTION

E5U080200000N02

Self-Malfunction Diagnostic Function
Malfunction detection function

• Detects overall malfunctions in the air bag system-related parts.

Fail-safe function

• If the SAS control module performance/function cannot be maintained due to any cause, the fail-safe function 

stops air bag system control and flashes the air bag system warning light to prevent the air bags from operating 
(deploying) accidentally.

Memory function

• Stores malfunctions in the air bag system-related parts detected by the malfunction detection function, and the 

stored malfunction contents are not cleared even if the ignition switch is turned to the LOCK position or the 
negative battery cable is disconnection.

Display function

• When the malfunction detection function detects a malfunction, the air bag system warning light illuminates to 

advise the driver. Using the external tester communication function, DTCs can be output to the DLC-2 via the 
K-line.

DTC table

DTC

System malfunction location

WDS 

display

Air bag system warning light

Flashing pattern

Priority 

ranking

B1013

48

14

Seat weight sensor calibration error

B1047

22

7

Driver-side side air bag module assembly 
incorrect

B104B

63

12

Driver-side side air bag sensor assembly incorrect

B104C

64

13

Passenger-side side air bag sensor assembly 
incorrect

B104D

42

11

Crash zone sensor assembly incorrect

B104F

64

13

Passenger-side air bag sensor system internal 
circuit disabled

B1051

63

12

Driver-side side air bag sensor system internal 
circuit disabled

B1055

23

8

Passenger-side side air bag module assembly 
incorrect

B1318



Continuously illuminated

1

SAS control module power supply voltage 
decreases (less than 9 V)

B1342

12

4

SAS control module

B1428

57

19

Seat belt warning light circuit open

ON-BOARD DIAGNOSTIC 

08–02–3

08–02

B1869



Continuously illuminated

1

Air bag system warning light circuit open



Does not illuminate



Air bag system warning light circuit short to body 
ground

B1877

33

9

Driver-side pre-tensioner seat belt circuit 
resistance high

B1878

Driver-side pre-tensioner seat belt circuit short to 
power supply

B1879

Driver-side pre-tensioner seat belt circuit short to 
body ground

B1881

34

10

Passenger-side pre-tensioner seat belt circuit 
resistance high

B1882

Passenger-side pre-tensioner seat belt circuit 
short to power supply

B1883

Passenger-side pre-tensioner seat belt circuit 
short to body ground

B1884

18

18

Passenger air bag deactivation (PAD) indicator 
circuit open or short to body ground

B1885

33

9

Driver-side pre-tensioner seat belt circuit 
resistance low

B1886

34

10

Passenger-side pre-tensioner seat belt circuit 
resistance low

B1916

19

5

Driver-side air bag module (inflator No. 1) circuit 
short to power supply

B1925

21

6

Passenger-side air bag module (inflator No. 1) 
circuit short to power supply

B1932

19

5

Driver-side air bag module (inflator No. 1) circuit 
resistance high

B1933

21

6

Passenger-side air bag module (inflator No. 1) 
circuit resistance high

B1934

19

5

Driver-side air bag module (inflator No. 1) circuit 
resistance low

B1935

21

6

Passenger-side air bag module (inflator No. 1) 
circuit resistance low

B1936

19

5

Driver-side air bag module (inflator No. 1) circuit 
short to body ground

B1938

21

6

Passenger-side air bag module (inflator No. 1) 
circuit short to body ground

DTC

System malfunction location

WDS 

display

Air bag system warning light

Flashing pattern

Priority 

ranking

ON-BOARD DIAGNOSTIC 

08–02–4

B1992

22

7

Driver-side side air bag module circuit short to 
power supply

B1993

Driver-side side air bag module circuit short to 
body ground

B1994

Driver-side side air bag module circuit resistance 
high

B1995

Driver-side side air bag module circuit resistance 
low

B1996

23

8

Passenger-side side air bag module circuit short 
to power supply

B1997

Passenger-side side air bag module circuit short 
to body ground

B1998

Passenger-side side air bag module circuit 
resistance high

B1999

Passenger-side side air bag module circuit 
resistance low

B2226

42

11

Crash zone sensor system internal circuit 
disabled

B2227

Crash zone sensor system communication error

B2228

19

5

Driver-side air bag module (inflator No.2) circuit 
short to body ground

B2229

21

6

Passenger-side air bag module (inflator No.2) 
circuit short to body ground

B2230

19

5

Driver-side air bag module (inflator No.2) circuit 
short to power supply

B2231

21

6

Passenger-side air bag module (inflator No.2) 
circuit short to power supply

B2232

19

5

Driver-side air bag module (inflator No.2) circuit 
resistance high

B2233

21

6

Passenger-side air bag module (inflator No.2) 
circuit resistance high

B2234

19

5

Driver-side air bag module (inflator No.2) circuit 
resistance low

B2235

21

6

Passenger-side air bag module (inflator No.2) 
circuit resistance low

B2290

48

14

Passenger sensing system malfunction

B2433

51

16

Driver-side buckle switch circuit open or short to 
power supply

DTC

System malfunction location

WDS 

display

Air bag system warning light

Flashing pattern

Priority 

ranking