VEHICLE DOES NOT STOP DESPITE VEHICLE AHEAD STOPPING [MAZDA RADAR CRUISE CONTROL (MRCC) SYSTEM]

id1503d3005900

Note

• Due to environmental effects, the system behavior may differ from the driver’s intentions even though the vehicle has no malfunction. To perform symptom troubleshooting, an understanding of the applicable system from the service highlights/technical guide is required. For details on the control conditions of the system, refer to the [MAZDA RADAR CRUISE CONTROL (MRCC) SYSTEM] operation in the service highlights/technical guide.

Outline

Description

•  Vehicle does not stop despite vehicle ahead stopping.
(With Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function))

Possible cause

•  Function temporarily disabled

•  Water droplets, condensation, or dirt on area around forward sensing camera (FSC)

•  Buckle switch malfunction

•  Door latch and lock actuator malfunction

•  BCM malfunction

•  Forward sensing camera (FSC) aiming not completed

•  Front radar sensor aiming not completed

•  Forward sensing camera (FSC) malfunction

•  Front radar sensor malfunction

•  Instrument cluster malfunction

Diagnostic Procedure

Step

Inspection

Results

Action

1

VERIFY ALL SYSTEM DTCs

•  Perform the DTC inspection.
(See DTC INSPECTION.)

•  Are any DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

Go to the next step.

2

VERIFY OPERATION RECORD

•  Verify the operation record for the time period when the malfunction occurred.
(See VEHICLE CONTROL MODULE (VCM) OPERATION RECORD.)

•  Is the operation record to disable the applicable function displayed?

Yes

The system is normal. (Explain to the customer that the system was temporarily restricted.)

No

Go to the next step.

3

VERIFY CONDITION AROUND FORWARD SENSING CAMERA (FSC)

•  Visually verify the applicable part.

•  Is the part normal?

Yes

Repair or replace the malfunctioning location and perform the repair completion verification.

No

Go to the next step.

4

INSPECT BUCKLE SWITCH FOR MALFUNCTION

•  Inspect the applicable part.
(See BUCKLE SWITCH INSPECTION.)

•  Is the part normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

(See FRONT BUCKLE REMOVAL/INSTALLATION.)

(See REAR BUCKLE REMOVAL/INSTALLATION.)

5

INSPECT DOOR LATCH AND LOCK ACTUATOR FOR MALFUNCTION

•  Inspect the applicable part.
(See FRONT DOOR LATCH AND LOCK ACTUATOR INSPECTION.)

•  Is the part normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

(See FRONT DOOR LATCH AND LOCK ACTUATOR REMOVAL/INSTALLATION.)

6

PERFORM FORWARD SENSING CAMERA (FSC) AIMING

•  Perform the forward sensing camera (FSC) aiming.
(See FORWARD SENSING CAMERA (FSC) AIMING.)

—

Go to the next step.

7

PERFORM FRONT RADAR SENSOR AIMING

•  Perform the front radar sensor aiming.
(See FRONT RADAR SENSOR AIMING.)

—

Go to the next step.

Repair completion verification

VERIFY THAT VEHICLE IS REPAIRED

•  Install/connect the part removed/disconnected during the troubleshooting procedure.

•  Has the malfunction symptom been eliminated?

Yes

Complete the symptom troubleshooting. (Explain contents of repair to customer)

No

Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.

(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [L.H.D. (E)].)

(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [R.H.D.].)

If the CAN communication is normal, perform the diagnosis from Step 1.

•  If the malfunction is not resolved, replace the instrument cluster.
(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION [(E)].)

Step	Inspection	Results	Action
1	VERIFY ALL SYSTEM DTCs • Perform the DTC inspection. (See DTC INSPECTION.) • Are any DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
1		No	Go to the next step.
2	VERIFY OPERATION RECORD • Verify the operation record for the time period when the malfunction occurred. (See VEHICLE CONTROL MODULE (VCM) OPERATION RECORD.) • Is the operation record to disable the applicable function displayed?	Yes	The system is normal. (Explain to the customer that the system was temporarily restricted.)
2		No	Go to the next step.
3	VERIFY CONDITION AROUND FORWARD SENSING CAMERA (FSC) • Visually verify the applicable part. • Is the part normal?	Yes	Repair or replace the malfunctioning location and perform the repair completion verification.
3		No	Go to the next step.
4	INSPECT BUCKLE SWITCH FOR MALFUNCTION • Inspect the applicable part. (See BUCKLE SWITCH INSPECTION.) • Is the part normal?	Yes	Go to the next step.
4		No	Repair or replace the malfunctioning location and perform the repair completion verification. (See FRONT BUCKLE REMOVAL/INSTALLATION.) (See REAR BUCKLE REMOVAL/INSTALLATION.)
5	INSPECT DOOR LATCH AND LOCK ACTUATOR FOR MALFUNCTION • Inspect the applicable part. (See FRONT DOOR LATCH AND LOCK ACTUATOR INSPECTION.) • Is the part normal?	Yes	Go to the next step.
5		No	Repair or replace the malfunctioning location and perform the repair completion verification. (See FRONT DOOR LATCH AND LOCK ACTUATOR REMOVAL/INSTALLATION.)
6	PERFORM FORWARD SENSING CAMERA (FSC) AIMING • Perform the forward sensing camera (FSC) aiming. (See FORWARD SENSING CAMERA (FSC) AIMING.)	—	Go to the next step.
7	PERFORM FRONT RADAR SENSOR AIMING • Perform the front radar sensor aiming. (See FRONT RADAR SENSOR AIMING.)	—	Go to the next step.
Repair completion verification	VERIFY THAT VEHICLE IS REPAIRED • Install/connect the part removed/disconnected during the troubleshooting procedure. • Has the malfunction symptom been eliminated?	Yes	Complete the symptom troubleshooting. (Explain contents of repair to customer)
Repair completion verification		No	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [L.H.D. (E)].) (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [R.H.D.].) If the CAN communication is normal, perform the diagnosis from Step 1. • If the malfunction is not resolved, replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION [(E)].)