Mazda RX-8. Manual - part 21

 

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Mazda RX-8. Manual - part 21

 

 

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 FUNCTION  . . . . . . . . . . . . . 08–02–1

Self-diagnostic Function . . . . . . . . . . . . 08–02–1
PID/Data Monitoring Function . . . . . . . . 08–02–2

End of Toc

ON-BOARD DIAGNOSTIC FUNCTION OUTLINE

EHU080200000101

The on-board diagnostic function consists of the following functions: a failure detection function, which detects 
malfunctions in the air bag system-related parts; a memory function, which stores detected DTCs; a self-
diagnostic function, which indicates system malfunctions using DTCs; 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.

 A fail-safe function, prevents the abrupt activation of the air bag module and the pre-tensioner seat belt in case 
of an air bag system malfunction.

End Of Sie

ON-BOARD DIAGNOSTIC FUNCTION FUNCTION

EHU080200000102

Self-diagnostic Function

Diagnostic DTCs B1013, B1884, B1890 and B2290 have been added due to the adoption of the seat weight 
sensor.

DTC

System malfunction location

WDS 

display

Air bag system warning light

Flashing pattern

Priority 

ranking

B1013

16

18

Seat weight sensor calibration error

B1884

18

21

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

B1890

18

21

Passenger air bag deactivation (PAD) indicator 
circuit short to power supply

B2290

16

18

Passenger sensing system malfunction

ON-BOARD DIAGNOSTIC 

08–02–2

PID/Data Monitoring Function

By using the PID/data monitoring function, the monitored item of the input/output signal, as set on the SAS 
control module, can be freely selected and read out in real-time. 

The WDS or equivalent is used to read out PID/data monitor information.

PID name (definition)

Unit/Condition

Operation Condition (Reference)

Terminal

CCNT_RCM
(Number of continuous DTCs)

DTCs detected: 1—255

No DTCs detected: 0

CRSH_ST_D1
(Driver-side side air bag 
sensor communication state)

OK/

FAULT

Sensor normal: OK

Sensor communication error: FAULT

2Z, 2AA

CRSH_ST_D2
(Driver-side side air bag 
sensor circuit state)

OK/

FAULT

Sensor normal: OK

Sensor internal circuit error: FAULT

2Z, 2AA

CRSH_ST_F1
(Crash zone sensor 
communication state)

OK/

FAULT

Sensor normal: OK

Sensor communication error: FAULT

1B, 1C

CRSH_ST_F2
(Crash zone sensor circuit 
state)

OK/

FAULT

Sensor normal: OK

Sensor internal circuit error: FAULT

1B, 1C

CRSH_ST_P1
(Passenger-side side air bag 
sensor communication state)

OK/

FAULT

Sensor normal: OK

Sensor communication error: FAULT

2B, 2C

CRSH_ST_P2
(Passenger-side side air bag 
sensor circuit state)

OK/

FAULT

Sensor normal: OK

Sensor internal circuit error: FAULT

2B, 2C

D_ABAGR2
(Driver-side air bag module 
(inflator No.2) resistance)

Ohm

Under any condition: 1.5—3.7 ohms

1G, 1J

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

Ohm

Under any condition: 1.5—3.7 ohms

1S, 1V

D_PTENSFLT
(Driver-side pre-tensioner seat 
belt circuit status)

SHRT_B+/

SHRT_GND/

OPEN/

SQ_LOWRES/

Normal

Related wiring harness short to power supply: SHRT_B+

Related wiring harness short to ground: SHRT_GND

Related wiring harness circuit open: OPEN

Pre-tensioner seat belt circuit resistance low: 
SQ_LOWRES

Related wiring harness normal: Normal

2P, 2S

DR_BUKL
(Driver-side buckle switch 
status)

Buckled/

Unbuckled

Driver-side buckle switch on: Buckled

Driver-side buckle switch off: Unbuckled

2T

DR_CURTN
(Driver-side curtain air bag 
module resistance)

Ohm

Under any condition: 1.4—3.2 ohms

2V, 2Y

DR_PTENS
(Driver-side pre-tensioner seat 
belt resistance)

Ohm

Under any condition: 1.5—3.1 ohms

2P, 2S

DS_AB
(Driver-side side air bag 
module resistance)

Ohm

Under any condition: 1.4—3.2 ohms

2M, 2O

DS_AB_ST
(Driver-side side air bag 
module circuit status)

SHRT_B+/

SHRT_GND/

OPEN/

SQ_LOWRES/

Normal

Related wiring harness short to power supply: SHRT_B+

Related wiring harness short to ground: SHRT_GND

Related wiring harness circuit open: OPEN

Air bag module circuit resistance low: SQ_LOWRES

Related wiring harness normal: Normal

2M, 2O

DS_CURT_ST
(Driver-side curtain air bag 
module circuit status)

SHRT_B+/

SHRT_GND/

OPEN/

SQ_LOWRES/

Normal

Related wiring harness short to power supply: SHRT_B+

Related wiring harness short to ground: SHRT_GND

Related wiring harness circuit open: OPEN

Air bag module circuit resistance low: SQ_LOWRES

Related wiring harness normal: Normal

2V, 2Y

DS1_STAT
(Driver-side air bag module 
(inflator No.1) circuit status)

SHRT_B+/

SHRT_GND/

OPEN/

SQ_LOWRES/

Normal

Related wiring harness short to power supply: SHRT_B+

Related wiring harness short to ground: SHRT_GND

Related wiring harness circuit open: OPEN

Air bag module circuit resistance low: SQ_LOWRES

Related wiring harness normal: Normal

1S, 1V

ON-BOARD DIAGNOSTIC 

08–02–3

08–02

DS2_STAT
(Driver-side air bag module 
(inflator No.2) circuit status)

SHRT_B+/

SHRT_GND/

OPEN/

SQ_LOWRES/

Normal

Related wiring harness short to power supply: SHRT_B+

Related wiring harness short to ground: SHRT_GND

Related wiring harness circuit open: OPEN

Air bag module circuit resistance low: SQ_LOWRES

Related wiring harness normal: Normal

1G, 1J

DSB_P_ST
(Driver-side pre-tensioner seat 
belt circuit status)

SHRT_B+/

SHRT_GND/

OPEN/

SQ_LOWRES/

Normal

Related wiring harness short to power supply: SHRT_B+

Related wiring harness short to ground: SHRT_GND

Related wiring harness circuit open: OPEN

Pre-tensioner seat belt circuit resistance low: 
SQ_LOWRES

Related wiring harness normal: Normal

2P, 2S

DTC_CLR_ST

*1

(Seat weight sensor DTC 
cleared status)

Started/

Normal End/

In Process/

OCS Fault

Fault information cleared at seat weight sensor

1I

IGN_V_2
(IG1 voltage)

V

Ignition switch to ON position: B+

1W

OCS_CAL_ST

*2

(Seat weight sensor 
calibration status)

Starting/

Normal End/

Commanding/

NG (Voltage)/

NG (Weight)/

In Process

Timeout/

OCS Fault

Seat weight sensor calibration start-up: Starting

Seat weight sensor calibration completed normally: 
Normal End

Seat weight sensor calibration command being sent: 
Commanding

Voltage malfunction during seat weight sensor calibration: 
NG (Voltage)

Weight error during seat weight sensor calibration: NG 
(Weight)

Seat weight sensor calibration time limit passed: Timeout

Seat weight sensor calibration being processed: In 
Process

Seat weight sensor or Seat weight sensor control module 
malfunction: OCS Fault

1I

OCS_SYS_ST

*1

(Seat weight sensor status)

Empty/

SMALL/

LARGE/

Indeterminate/

Invalid

Occupant classification status determined by seat weight 
sensor

1I

OCSFLT_CAL
(Passenger sensing system 
calibration status)

OK/

FAULT

Sensor normal: OK

Seat weight sensor calibration error: FAULT

1I

OCSFLT_COM
(Passenger sensing system 
communication status)

OK/

FAULT

Sensor normal: OK

Seat weight sensor control module communication error: 
FAULT

1I

OCSFLT_L
(Passenger sensing system 
(LH) malfunction status)

OK/

FAULT

Sensor normal: OK

Seat weight sensor (LH) malfunction: FAULT

1I

OCSFLT_MDL
(Passenger sensing system 
control module malfunction 
status)

OK/

FAULT

Sensor normal: OK

Seat weight sensor control module malfunction: FAULT

1I

OCSFLT_R
(Passenger sensing system 
(RH) malfunction status)

OK/

FAULT

Sensor normal: OK

Seat weight sensor (RH) malfunction: FAULT

1I

OD_CRST_D1
(On demand driver-side side 
air bag sensor communication 
state)

OK/

FAULT

Sensor normal: OK

Sensor communication error: FAULT

2Z, 2AA

OD_CRST_D2
(On demand driver-side side 
air bag sensor circuit state)

OK/

FAULT

Sensor normal: OK

Sensor internal circuit error: FAULT

2Z, 2AA

OD_CRST_F1
(On demand crash zone 
sensor communication state)

OK/

FAULT

Sensor normal: OK

Sensor communication error: FAULT

1B, 1C

OD_CRST_F2
(On demand crash zone 
sensor circuit state)

OK/

FAULT

Sensor normal: OK

Sensor internal circuit error: FAULT

1B. 1C

PID name (definition)

Unit/Condition

Operation Condition (Reference)

Terminal

ON-BOARD DIAGNOSTIC 

08–02–4

OD_CRST_P1
(On demand passenger-side 
side air bag sensor 
communication state)

OK/

FAULT

Sensor normal: OK

Sensor communication error: FAULT

2B, 2C

OD_CRST_P2
(On demand passenger-side 
side air bag sensor circuit 
state)

OK/

FAULT

Sensor normal: OK

Sensor internal circuit error: FAULT

2B, 2C

OD_D_CURT
(Driver-side curtain air bag 
module circuit status)

SHRT_B+/

SHRT_GND/

OPEN/

SQ_LOWRES/

Normal

Related wiring harness short to power supply: SHRT_B+

Related wiring harness short to ground: SHRT_GND

Related wiring harness circuit open: OPEN

Air bag module circuit resistance low: SQ_LOWRES

Related wiring harness normal: Normal

2V, 2Y

OD_DAB1_ST
(Driver-side air bag module 
(inflator No.1) circuit status)

SHRT_B+/

SHRT_GND/

OPEN/

SQ_LOWRES/

Normal

Related wiring harness short to power supply: SHRT_B+

Related wiring harness short to ground: SHRT_GND

Related wiring harness circuit open: OPEN

Air bag module circuit resistance low: SQ_LOWRES

Related wiring harness normal: Normal

1S, 1V

OD_DAB2_ST
(Driver-side air bag module 
(inflator No.2) circuit status)

SHRT_B+/

SHRT_GND/

OPEN/

SQ_LOWRES/

Normal

Related wiring harness short to power supply: SHRT_B+

Related wiring harness short to ground: SHRT_GND

Related wiring harness circuit open: OPEN

Air bag module circuit resistance low: SQ_LOWRES

Related wiring harness normal: Normal

1G, 1J

OD_DSAB_ST
(Driver-side side air bag 
module circuit status)

SHRT_B+/

SHRT_GND/

OPEN/

SQ_LOWRES/

Normal

Related wiring harness short to power supply: SHRT_B+

Related wiring harness short to ground: SHRT_GND

Related wiring harness circuit open: OPEN

Air bag module circuit resistance low: SQ_LOWRES

Related wiring harness normal: Normal

2M, 2O

OD_P_CURT
(Passenger-side curtain air 
bag module circuit status)

SHRT_B+/

SHRT_GND/

OPEN/

SQ_LOWRES/

Normal

Related wiring harness short to power supply: SHRT_B+

Related wiring harness short to ground: SHRT_GND

Related wiring harness circuit open: OPEN

Air bag module circuit resistance low: SQ_LOWRES

Related wiring harness normal: Normal

2A, 2D

OD_PAB1_ST
(Passenger-side air bag 
module (inflator No.1) circuit 
status)

SHRT_B+/

SHRT_GND/

OPEN/

SQ_LOWRES/

Normal

Related wiring harness short to power supply: SHRT_B+

Related wiring harness short to ground: SHRT_GND

Related wiring harness circuit open: OPEN

Air bag module circuit resistance low: SQ_LOWRES

Related wiring harness normal: Normal

1M, 1P

OD_PAB2_ST
(Passenger-side air bag 
module (inflator No.2) circuit 
status)

SHRT_B+/

SHRT_GND/

OPEN/

SQ_LOWRES/

Normal

Related wiring harness short to power supply: SHRT_B+

Related wiring harness short to ground: SHRT_GND

Related wiring harness circuit open: OPEN

Air bag module circuit resistance low: SQ_LOWRES

Related wiring harness normal: Normal

1A, 1D

OD_PSAB_ST
(Passenger-side side air bag 
module circuit status)

SHRT_B+/

SHRT_GND/

OPEN/

SQ_LOWRES/

Normal

Related wiring harness short to power supply: SHRT_B+

Related wiring harness short to ground: SHRT_GND

Related wiring harness circuit open: OPEN

Air bag module circuit resistance low: SQ_LOWRES

Related wiring harness normal: Normal

2I, 2L

P_ABAGR2
(Passenger-side air bag 
module (inflator No.2) 
resistance)

Ohm

Under any condition: 1.4—2.9 ohms

1A, 1D

P_PTENSFLT
(Passenger-side pre-tensioner 
seat belt circuit status)

SHRT_B+/

SHRT_GND/

OPEN/

SQ_LOWRES/

Normal

Related wiring harness short to power supply: SHRT_B+

Related wiring harness short to ground: SHRT_GND

Related wiring harness circuit open: OPEN

Pre-tensioner seat belt circuit resistance low: 
SQ_LOWRES

Related wiring harness normal: NORMAL

2G, 2J

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

Ohm

Under any condition: 1.4—2.9 ohms

1M, 1P

PS_AB
(Passenger-side side air bag 
module resistance)

Ohm

Under any condition: 1.4—3.2 ohms

2I, 2L

PID name (definition)

Unit/Condition

Operation Condition (Reference)

Terminal

 

 

 

 

 

 

 

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