System malfunction location

MRCC system initialization not implemented

Detection condition

• The initial setting for yaw rate information is not performed after replacing the SAS control module.

  NOTE:

  • If the ignition is switched off (LOCK) when an error occurs during the system initialization command execution, a DTC is detected indicating that the system initialization was not performed.

Fail-safe

• Inhibits the Mazda radar cruise control (MRCC) system control

• Inhibits the forward obstruction warning (FOW) system control

Possible cause

• MRCC system initialization not performed after replacing SAS control module

• SAS control module malfunction

• Vehicle control module (V/C-module) malfunction

System wiring diagram

• Not applicable

Step

Inspection

Action

1

• Perform MRCC system initialization.

  (See MRCC INITIALIZATION SETTING [MAZDA RADAR CRUISE CONTROL (MRCC) SYSTEM].)

• Clear vehicle control module (V/C-module) DTCs using the M-MDS.

  (See CLEARING DTC [VEHICLE CONTROL MODULE (V/C-MODULE)].)

• Switch the ignition ON (engine on).

• Perform the vehicle control module (V/C-module) DTC inspection using the M-MDS.

  (See DTC INSPECTION [VEHICLE CONTROL MODULE (V/C-MODULE)].)

• Is the same DTC present?

Yes

Go to the next step.

No

Go to Step 5.

2

• Perform the SAS control module DTC inspection using the M-MDS.

  (See DTC INSPECTION [STANDARD DEPLOYMENT CONTROL SYSTEM].)

  (See DTC INSPECTION [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [STANDARD DEPLOYMENT CONTROL SYSTEM].)

(See DTC TABLE [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)

Then go to Step 4.

No

Go to the next step.

3

• Clear vehicle control module (V/C-module) DTCs using the M-MDS.

  (See CLEARING DTC [VEHICLE CONTROL MODULE (V/C-MODULE)].)

• Switch the ignition ON (engine on).

• Perform the vehicle control module (V/C-module) DTC inspection using the M-MDS.

  (See DTC INSPECTION [VEHICLE CONTROL MODULE (V/C-MODULE)].)

• Is the same DTC present?

Yes

Replace the SAS control module, then go to the next Step.

(See SAS CONTROL MODULE REMOVAL/INSTALLATION [STANDARD DEPLOYMENT CONTROL SYSTEM].)

(See SAS CONTROL MODULE REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)

No

Go to the next step.

4

• Clear vehicle control module (V/C-module) DTCs using the M-MDS.

  (See CLEARING DTC [VEHICLE CONTROL MODULE (V/C-MODULE)].)

• Switch the ignition ON (engine on).

• Perform the vehicle control module (V/C-module) DTC inspection using the M-MDS.

  (See DTC INSPECTION [VEHICLE CONTROL MODULE (V/C-MODULE)].)

• Is the same DTC present?

Yes

Repeat the inspection from Step 1.

• If the malfunction does not recur, go to the next step.

• If the malfunction recurs, replace the vehicle control module (V/C-module).

  (See VEHICLE CONTROL MODULE (V/C-MODULE) REMOVAL/INSTALLATION [MAZDA RADAR CRUISE CONTROL (MRCC) SYSTEM].)

Go to the next step.

No

Go to the next step.

5

• Verify other DTCs displayed.

• Are any other DTCs output?

Yes

Perform the corresponding DTC inspection.

No

DTC troubleshooting completed.