Mazda 6. Manual - part 360

ON-BOARD DIAGNOSTIC [CRUISE CONTROL SYSTEM] 

T–187

T

Diagnostic procedure

End Of Sie

DTC 11

A6E817266350W12

Diagnostic procedure

End Of Sie

DTC 12

A6E817266350W13

Diagnostic procedure

End Of Sie

STEP

INSPECTION

ACTION

1

INSPECT BRAKE SWITCH

• Disconnect brake switch connector.

• Inspect brake switch.

(See 

P–8 BRAKE SWITCH INSPECTION

)

• Is brake switch okay?

Yes

Go to next step.

No

Replace brake switch.

2

INSPECT BRAKE SWITCH 2

• Inspect brake switch 2.

(See 

P–8 BRAKE SWITCH INSPECTION

)

• Is brake switch okay?

Yes

Go to next step.

No

Replace brake switch.

3

INSPECT WIRING HARNESS BETWEEN 
BRAKE SWITCH AND CRUISE ACTUATOR 
FOR CONTINUITY

• Disconnect cruise actuator connector.

• Is there continuity between brake switch 

connector D and cruise actuator connector 
C.

Yes

Go to next step.

No

Repair wiring harness. (Cruise actuator—Brake switch)

4

INSPECT WIRING HARNESS BETWEEN 
BRAKE SWITCH 2 AND CRUISE ACTUATOR 
FOR SHORT TO POWER SUPPLY

• Connect brake switch connector.

• Turn ignition switch ON position.

• Is voltage at cruise actuator connector 

terminal K approximately 12 V?

Yes

Replace cruise actuator.
(See 

T–110 CRUISE ACTUATOR REMOVAL/

INSTALLATION

)

No

Repair wiring harness. (Cruise actuator—Brake switch 2)

DTC 11

Cruise control switch (SET/COAST switch)

DETECTION 

CONDITION

• Resistance detected between cruise actuator connector terminal J and ground is always 

approximately 680 ohms.

POSSIBLE 

CAUSE

• Cruise actuator malfunction

• Cruise control switch malfunction

INSPECTION

ACTION

INSPECT DTC FOR OPERATION MODE

• Was operation mode for DTC 21 performed?

Yes

Perform operation mode for DTC 21 on-board diagnostic 
again. Even if no malfunction is detected in operation mode, 
if DTC 11 is indicated in condition detection mode on-board 
diagnostic, replace cruise actuator.
(See 

T–110 CRUISE ACTUATOR REMOVAL/

INSTALLATION

)

No

Perform operation mode for DTC 21.

DTC 12

Cruise control switch (RESUME/ACCEL switch)

DETECTION 

CONDITION

• Resistance detected between cruise actuator connector terminal J and ground is always 

approximately 2.2 kilohms.

POSSIBLE 

CAUSE

• Cruise actuator malfunction

INSPECTION

ACTION

INSPECT DTC FOR OPERATION MODE

• Was operation mode for DTC 22 performed?

Yes

Perform operation mode for DTC 22 on-board diagnostic 
again. Even if no malfunction is detected in operation mode, 
if DTC 12 is indicated in condition detection mode on-board 
diagnostic, replace cruise actuator.
(See 

T–110 CRUISE ACTUATOR REMOVAL/

INSTALLATION

)

No

Perform operation mode for DTC 22.

T–188

ON-BOARD DIAGNOSTIC [CRUISE CONTROL SYSTEM] 

DTC 13

A6E817266350W14

Diagnostic procedure

End Of Sie

DTC 15

A6E817266350W15

Diagnostic procedure

End Of Sie

DTC 13

Cruise control switch (ground circuit)

DETECTION 

CONDITION

• Resistance detected between cruise actuator connector terminal J and ground is always 

approximately 0 ohm.

POSSIBLE 

CAUSE

• Cruise actuator malfunction

INSPECTION

ACTION

INSPECT DTC FOR OPERATION MODE

• Was operation mode for DTCs 21 and 22 performed?

Yes

Perform operation mode for DTCs 21 and 22 on-board 
diagnostic again. Even if no malfunction is detected in 
operation mode, if DTC 13 is indicated in condition detection 
mode on-board diagnostic, replace cruise actuator.
(See 

T–110 CRUISE ACTUATOR REMOVAL/

INSTALLATION

)

No

Perform operation mode for DTCs 21 and 22.

DTC 15

Cruise actuator (control circuit)

DETECTION 

CONDITION

• Malfunction in cruise actuator circuit (control circuit)

POSSIBLE 

CAUSE

• Cruise actuator malfunction

ACTION

REPLACE CRUISE ACTUATOR IF IT IS MALFUNCTIONING

• Replace cruise actuator.

(See 

T–110 CRUISE ACTUATOR REMOVAL/INSTALLATION

)

ON-BOARD DIAGNOSTIC [AIR BAG SYSTEM] 

T–189

T

FOREWORD

A6E817401046W01

Outline

• The OBD (on-board diagnostic) test inspects the integrity and function of the air bag system and outputs the 

results when requested by the specific tests.

• OBD test also:

— Provides a quick inspection of the air bag system.
— Is usually performed at the start of each diagnostic procedure.
— Provides verification after repairs to ensure that no other faults occurred during service.

• The OBD test is divided into three tests:

— Read/clear diagnostic results
— PID/data monitor and record
— Active command mode

• Diagnostic DTC can be read/cleared, using the SST (WDS or equivalent).

Note

• When the air bag system is malfunctioning, turn the ignition switch to the ON position to display the 

current DTC, using the air bag system warning light on the instrument cluster. However this light is strictly 
for reference. Make sure to inspect the system, using the SST (WDS or equivalent).

Read/clear diagnostic results

• This function allows you to read or clear DTCs in the SAS unit memory. 

PID/data monitor and record

• This function allows you access certain data values, input signals, calculated values, and system status 

information.

Active command modes

• This function allows you to control devices through WDS or equivalent.

ON-BOARD DIAGNOSTIC [AIR BAG SYSTEM]

T–190

ON-BOARD DIAGNOSTIC [AIR BAG SYSTEM] 

Flowchart

• Use the following flowchart to verify the cause of the trouble.

Note

• While performing the inspection of the past malfunction code, the applicable DTCs may be added to 

memory by removing or disconnecting the related parts. Inspect only the DTCs that were indicated before 
inspecting.

• When DTCs of present malfunction are no longer output after present and/or past malfunctions have been 

repaired, be sure to perform past malfunction display cancellation to prevent repair of malfunctions that 
have already been repaired.

A6E8174W013