Mazda CX 7. Manual — part 303

ON-BOARD DIAGNOSTIC

08-02–7

08-02

B2232

19

14

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

(See 08-02-32
DTC B2228,
B2230, B2232,
B2234)

B2233

21

13

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

(See 08-02-35
DTC B2229,
B2231, B2233,
B2235)

B2234

19

14

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

(See 08-02-32
DTC B2228,
B2230, B2232,
B2234)

B2235

21

13

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

(See 08-02-35
DTC B2229,
B2231, B2233,
B2235)

B2290

16

21

Seat weight sensor signal
malfunction

(See 08-02-37
DTC B2290)

B2296

42

9

Crash zone sensor
(communication error, internal
circuit abnormal)

(See 08-02-38
DTC B2296)

B2444

43

8

Driver-side side air bag sensor
(internal circuit abnormal)

(See 08-02-40
DTC B2444,
U2017)

B2445

44

7

Passenger-side side air bag
sensor (internal circuit abnormal)

(See 08-02-43
DTC B2445,
U2018)

B2477

54

5

Configuration error

(See 08-02-45
DTC B2477)

B2773

24

20

Driver-side curtain air bag module
circuit resistance low

(See 08-02-45
DTC B2773,
B2774, B2775,
B2776)

B2774

Driver-side curtain air bag module
circuit resistance high

B2775

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

B2776

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

B2777

25

19

Passenger-side curtain air bag
module circuit resistance low

(See 08-02-47
DTC B2777,
B2778, B2779,
B2780)

B2778

Passenger-side curtain air bag
module circuit resistance high

B2779

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

B2780

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

B2867

58

6

Poor connection of any SAS
control module connectors

(See 08-02-49
DTC B2867)

C1947

49

23

Seat track position sensor circuit
short to body ground

(See 08-02-50
DTC C1947,
C1948, C1981)

C1948

Seat track position sensor circuit
resistance not within specification

C1981

Seat track position sensor circuit
open or short to power supply

DTC

System malfunction location

Page

M-MDS
display

Air bag system warning light

Flashing pattern

Priority

ranking

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ON-BOARD DIAGNOSTIC

08-02–8

End Of Sie

PID/DATA MONITOR DISPLAY

id080200800700

1. Connect the M-MDS to the DLC-2 connector.
2. After the vehicle is identified, select the following

items from the initialization screen of the M-MDS.

• When using the IDS (notebook PC)

— Select the “Toolbox” tab.

— Select “DataLogger”.

— Select “Module”.

— Select “RCM”.

• When using the PDS (pocket PC)

— Select “Module Tests”.

— Select “RCM”.

— Select “DataLogger”.

3. Select the applicable PID from the PID table.
4. Verify the PID data according to the directions on

the screen.

Note

• The PID data screen function is used for monitoring the calculated value. Therefore, if the monitored value

of the output parts is not within the specification, inspection of the monitored value of input parts
corresponding to applicable output part control is necessary. In addition, because the system does not
display output part malfunction as abnormality in the monitored value, it is necessary to inspect the output
part individually.

End Of Sie

PID/DATA MONITOR TABLE

id080200800800

U2017

43

8

Driver-side side air bag sensor
(communication error)

(See 08-02-40
DTC B2444,
U2017)

U2018

44

7

Passenger-side side air bag
sensor (communication error)

(See 08-02-43
DTC B2445,
U2018)

U0073

14

12

CAN system communication error (See 09-02D-7

DTC
TABLE[MULTIPLE
X
COMMUNICATIO
N SYSTEM])

U0151

Communication error to SAS
control module

U0155

Communication error to
instrument cluster

DTC

System malfunction location

Page

M-MDS
display

Air bag system warning light

Flashing pattern

Priority

ranking

DLC-2

acxuuw00001023

PID name (definition)

Unit/Condition

Operation Condition (Reference)

Terminal

BUCKLE_D
(Driver-side buckle switch
status)

Buckled/

Unbuckled

• Driver-side buckle switch off: Buckled

• Driver-side buckle switch on: Unbuckled

2T

BUCKLE_P
(Passenger-side buckle switch
status)

Buckled/

Unbuckled

• Passenger-side buckle switch off: Buckled

• Passenger-side buckle switch on: Unbuckled

2H

CCNT_RCM
(Number of continuous DTCs)



Indicates number of DTC



DTC_CLR_ST

*1

(Seat weight sensor status)

Starting/

Normal End/

End In Process/

OCS Fault

Fault information cleared at seat weight sensor

1I

IGN_V_2
(IG1 voltage)

V

Ignition switch is at ON: B+

1W

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ON-BOARD DIAGNOSTIC

08-02–9

08-02

OCS_CAL_ST

*2

(Seat weight sensor
calibration status)

Starting/

Normal End/

Commanding/

NG (Voltage)/

NG (Weight)/

Timeout/

In Process/

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/

Indeterminate/

LARGE/

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

PS_WEIGHT
(Seat weight sensor measured
weight of passenger)

kg

Display of load (body weight) on passenger-side seat

1I

PSAB_DepSt
(Passenger-side air bag
module deployment status)

Inactive/

Active

• Passenger-side air bag module non-operation (non-

deployment) status: Inactive

• Passenger-side air bag module operation (deployment)

enabled status: Active

1I

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

ohm

Under any condition: 1.5— 4.4 ohms

1S, 1V

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

ohm

Under any condition: 1.4— 3.6 ohms

1M, 1P

RES_AB2_D
(Driver-side air bag module
(inflator No.2) resistance)

ohm

Under any condition: 1.5— 4.4 ohms

1G, 1J

RES_AB2_P
(Passenger-side air bag
module (inflator No.2)
resistance)

ohm

Under any condition: 1.4— 3.6 ohms

1A, 1D

RES_CAB_D
(Driver-side curtain air bag
module resistance)

ohm

Under any condition: 1.4— 3.9 ohms

2V, 2Y

RES_CAB_P
(Passenger-side curtain air
bag module resistance)

ohm

Under any condition: 1.4— 3.9 ohms

2A, 2D

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

ohm

Under any condition: 1.5— 3.7 ohms

2P, 2S

PID name (definition)

Unit/Condition

Operation Condition (Reference)

Terminal

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ON-BOARD DIAGNOSTIC

08-02–10

*1

: Used during seat weight sensor calibration setting. Not necessary for diagnostic.

*2

: When the calibration error is displayed, the error can be cleared by turning the ignition switch to the LOCK

position.

End Of Sie

DTC B1013

id080200800900

Diagnostic procedure

RES_PT_P
(Passenger-side pre-tensioner
seat belt resistance)

ohm

Under any condition: 1.5— 3.7 ohms

2G, 2J

RES_SAB_D
(Driver-side side air bag
module resistance)

ohm

Under any condition: 1.4— 3.9 ohms

2M, 2O

RES_SAB_P
(Passenger-side side air bag
module resistance)

ohm

Under any condition: 1.4— 3.9 ohms

2I, 2L

TRAK_SW
(Seat track position sensor
state)

Forward/

Rearward

• Front seat front position: Forward

• Front seat rear position: Rearward

2W, 2X

PID name (definition)

Unit/Condition

Operation Condition (Reference)

Terminal

DTC B1013

Seat weight sensor calibration 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.

• Calibration set value not within valid range.

POSSIBLE

CAUSE

• Weight acting on passenger-side seat during calibration

• Improperly installed passenger-side seat part at time of calibration

• Deformed floor where attached to passenger-side seat

• Deformed passenger-side seat under-bracket or frame

• Seat weight sensor deformed or malfunction

• Seat weight sensor control module malfunction

• SAS control module malfunction

• Load to or deformation of the seat belt rail

STEP

INSPECTION

ACTION

1

INSPECT SEAT WEIGHT SENSOR

• Properly install the passenger-side front

seat.

• Inspect the seat weight sensor. (See 08-10-

12 SEAT WEIGHT SENSOR
CALIBRATION.)

• Is the seat weight sensor normal?

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

Go to the next step.

2

INSPECT PASSENGER-SIDE FRONT SEAT

• Turn the ignition switch to the LOCK position.

• Disconnect the negative battery cable and

wait for 1 min or more.

• Remove the passenger-side seat and

visually inspect for the following:
— Seat under-bracket deformation

— Seat frame deformation

— Seat weight sensor deformation

— Foreign objects stuck in seat

• Are any of the parts deformed or are any

foreign objects stuck in the seat?

Yes

Replace any deformed parts or remove any foreign
objects.

• After replacement, perform seat weight sensor

calibration and reperform the DTC inspection. If the
DTC is displayed, go the next step. (See 08-10-12
SEAT WEIGHT SENSOR CALIBRATION.)

No

Go to the next step.

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