Description

Error signal received from vehicle control module (V/C-module)

Detection condition

• Instrument cluster receives error signals from the vehicle control module (V/C-module) for 1 s or more with the ignition switched ON (engine off or on).

Fail-safe function

Not applicable

Possible cause

• DTCs are stored in the vehicle control module (V/C-module).

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

• Instrument cluster malfunction

System wiring diagram

Not applicable

Step

Inspection

Action

1

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

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

• Are any DTCs displayed?

Yes

Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.

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

No

Go to the next step.

2

• Clear the DTC for the instrument cluster using the M-MDS.

  (See CLEARING DTC [INSTRUMENT CLUSTER].)

• Switch the ignition ON (engine off or on) and wait for 20 s or more.

• Retrieve the instrument cluster DTCs using the M-MDS.

  (See DTC INSPECTION [INSTRUMENT CLUSTER].)

• Is the same DTC displayed?

Yes

Replace the vehicle control module (V/C-module), then go to the next step.

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

No

Go to Step 4.

3

• Clear the DTC for the instrument cluster using the M-MDS.

  (See CLEARING DTC [INSTRUMENT CLUSTER].)

• Switch the ignition ON (engine off or on) and wait for 20 s or more.

• Retrieve the instrument cluster DTCs using the M-MDS.

  (See DTC INSPECTION [INSTRUMENT CLUSTER].)

• Is the same DTC displayed?

Yes

Repeat the inspection from Step 1.

• If the malfunction recurs, replace the instrument cluster.

  (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

Go to the next step.

No

Go to the next step.

4

• Are any other DTCs displayed?

Yes

Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.

(See DTC TABLE [INSTRUMENT CLUSTER].)

No

DTC troubleshooting completed.