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DTC B14F4:86 [VEHICLE CONTROL MODULE (E)]

id1502c50505cb

Without Mazda M Hybrid

Outline

System malfunction location

Error signal received from other modules of parking assist unit (ultrasonic)

Detection condition

•  The vehicle control module (VCM) detects that the parking assist unit (ultrasonic) received error signals or a configuration data error from the following modules for 20 s.

―  DSC HU/CM

―  Steering angle sensor

―  Vehicle control module (VCM)

―  Body control module (BCM)

Fail-safe

(See DTC TABLE [VEHICLE CONTROL MODULE (E)].)

Possible cause

•  Configuration data error

•  Malfunction in each CAN communication related module

―  Parking assist unit (ultrasonic)

―  DSC HU/CM

―  Steering angle sensor

―  Vehicle control module (VCM)

―  Body control module (BCM)

•  Yaw rate initial setting for vehicle control module (VCM) not implemented or error

System wiring diagram

Not applicable

Connector diagram

Not applicable

System malfunction location	Error signal received from other modules of parking assist unit (ultrasonic)
Detection condition	• The vehicle control module (VCM) detects that the parking assist unit (ultrasonic) received error signals or a configuration data error from the following modules for 20 s. ― DSC HU/CM ― Steering angle sensor ― Vehicle control module (VCM) ― Body control module (BCM)
Fail-safe	(See DTC TABLE [VEHICLE CONTROL MODULE (E)].)
Possible cause	• Configuration data error • Malfunction in each CAN communication related module ― Parking assist unit (ultrasonic) ― DSC HU/CM ― Steering angle sensor ― Vehicle control module (VCM) ― Body control module (BCM) • Yaw rate initial setting for vehicle control module (VCM) not implemented or error
System wiring diagram	Not applicable
Connector diagram	Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action

1

INSPECT VEHICLE CONTROL MODULE (VCM) AND BODY CONTROL MODULE (BCM) FOR MALFUNCTION

•  Perform the DTC inspection for the vehicle control module (VCM) and the body control module (BCM).
(See DTC INSPECTION.)

•  Are any of the following DTCs displayed?

―  DTC related to internal malfunction in body control module (BCM)

―  DTC related to internal malfunction in vehicle control module (VCM)

―  C0063:54 for vehicle control module (VCM)

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [VEHICLE CONTROL MODULE (E)].)

(See DTC TABLE [BODY CONTROL MODULE (BCM) (E)].)

No

Go to the next step.

2

VERIFY SOPHISTICATED AIRBAG SENSOR (SAS) CONTROL MODULE AND BODY CONTROL MODULE (BCM) REPLACEMENT RECORD

•  Verify if the Sophisticated Airbag Sensor (SAS) control module or the body control module (BCM) has been replaced before performing this troubleshooting procedure.

•  Has the Sophisticated Airbag Sensor (SAS) control module or the body control module (BCM) been replaced?

Yes

After implementing the required servicing according to procedure when replacing a module, perform the repair completion verification.

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

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

(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION [(E)].)

No

Go to the next step.

3

INSPECT PARKING ASSIST UNIT (ULTRASONIC) FOR MALFUNCTION

•  Perform the DTC inspection for the parking assist unit (ultrasonic).
(See DTC INSPECTION.)

•  Is a DTC displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [PARKING ASSIST UNIT (ULTRASONIC) (E)].)

No

Go to the next step.

4

VERIFY DSC HU/CM DTCs

•  Perform the DTC inspection for the DSC HU/CM.
(See DTC INSPECTION.)

•  Is a DTC displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [DSC HU/CM (E)].)

No

Go to the next step.

5

VERIFY STEERING ANGLE SENSOR RELATED DTCs

•  Perform the DTC inspection for the body control module (BCM).
(See DTC INSPECTION.)

•  Is a steering angle sensor related DTC displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [BODY CONTROL MODULE (BCM) (E)].)

No

Go to the next step.

6

VERIFY ALL SYSTEM DTCs

•  Perform the CMDTC self-test.
(See DTC INSPECTION.)

•  Are any DTCs other than this DTC displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

Go to the next step.

7

PERFORM YAW RATE INITIAL SETTING FOR VEHICLE CONTROL MODULE (VCM)

•  Perform the yaw rate initial setting for the vehicle control module (VCM) using the M-MDS.
(See VCM INITIAL SETTING.)

•  Switch the ignition OFF.

•  Clear the DTC recorded in the memory.
(See CLEARING DTC.)

•  Perform the DTC inspection for the vehicle control module (VCM).
(See DTC INSPECTION.)

•  Is the same Pending DTC present?

Yes

Go to the next step.

No

Go to repair completion verification 2.

8

INSPECT PARKING ASSIST UNIT (ULTRASONIC) FOR MALFUNCTION DEPENDING ON REPEATABILITY

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

•  Clear the DTC recorded in the memory.
(See CLEARING DTC.)

•  Perform the DTC inspection for the vehicle control module (VCM).
(See DTC INSPECTION.)

•  Is the same Pending DTC present?

Yes

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 [(E)].)

If the CAN communication is normal, replace the parking assist unit (ultrasonic) and perform the repair completion verification.

(See PARKING ASSIST UNIT (ULTRASONIC) REMOVAL/INSTALLATION.)

No

Perform the [ACTION FOR NON-REPEATABLE MALFUNCTIONS].

(See TROUBLESHOOTING PROCEDURE [(E)].)

If DTC is displayed

•  Repeat the diagnosis from Step 1.

If DTC is not displayed

•  Go to repair completion verification 2.

Repair completion verification 1

VERIFY THAT VEHICLE IS REPAIRED

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

•  Clear the DTC recorded in the memory.
(See CLEARING DTC.)

•  Perform the DTC inspection for the vehicle control module (VCM).
(See DTC INSPECTION.)

•  Is the same Pending DTC present?

Yes

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 [(E)].)

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

•  If the malfunction recurs, replace the body control module (BCM), then go to the next step.
(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION [(E)].)

No

Go to the next step.

Repair completion verification 2

VERIFY IF OTHER DTC IS DISPLAYED

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

•  Are any other DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

DTC troubleshooting completed.

Step	Inspection	Results	Action
1	INSPECT VEHICLE CONTROL MODULE (VCM) AND BODY CONTROL MODULE (BCM) FOR MALFUNCTION • Perform the DTC inspection for the vehicle control module (VCM) and the body control module (BCM). (See DTC INSPECTION.) • Are any of the following DTCs displayed? ― DTC related to internal malfunction in body control module (BCM) ― DTC related to internal malfunction in vehicle control module (VCM) ― C0063:54 for vehicle control module (VCM)	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [VEHICLE CONTROL MODULE (E)].) (See DTC TABLE [BODY CONTROL MODULE (BCM) (E)].)
No	Go to the next step.
2	VERIFY SOPHISTICATED AIRBAG SENSOR (SAS) CONTROL MODULE AND BODY CONTROL MODULE (BCM) REPLACEMENT RECORD • Verify if the Sophisticated Airbag Sensor (SAS) control module or the body control module (BCM) has been replaced before performing this troubleshooting procedure. • Has the Sophisticated Airbag Sensor (SAS) control module or the body control module (BCM) been replaced?	Yes	After implementing the required servicing according to procedure when replacing a module, perform the repair completion verification. (See SAS CONTROL MODULE REMOVAL/INSTALLATION [STANDARD DEPLOYMENT CONTROL SYSTEM].) (See SAS CONTROL MODULE REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM].) (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION [(E)].)
No	Go to the next step.
3	INSPECT PARKING ASSIST UNIT (ULTRASONIC) FOR MALFUNCTION • Perform the DTC inspection for the parking assist unit (ultrasonic). (See DTC INSPECTION.) • Is a DTC displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PARKING ASSIST UNIT (ULTRASONIC) (E)].)
No	Go to the next step.
4	VERIFY DSC HU/CM DTCs • Perform the DTC inspection for the DSC HU/CM. (See DTC INSPECTION.) • Is a DTC displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [DSC HU/CM (E)].)
No	Go to the next step.
5	VERIFY STEERING ANGLE SENSOR RELATED DTCs • Perform the DTC inspection for the body control module (BCM). (See DTC INSPECTION.) • Is a steering angle sensor related DTC displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [BODY CONTROL MODULE (BCM) (E)].)
No	Go to the next step.
6	VERIFY ALL SYSTEM DTCs • Perform the CMDTC self-test. (See DTC INSPECTION.) • Are any DTCs other than this DTC displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
No	Go to the next step.
7	PERFORM YAW RATE INITIAL SETTING FOR VEHICLE CONTROL MODULE (VCM) • Perform the yaw rate initial setting for the vehicle control module (VCM) using the M-MDS. (See VCM INITIAL SETTING.) • Switch the ignition OFF. • Clear the DTC recorded in the memory. (See CLEARING DTC.) • Perform the DTC inspection for the vehicle control module (VCM). (See DTC INSPECTION.) • Is the same Pending DTC present?	Yes	Go to the next step.
No	Go to repair completion verification 2.
8	INSPECT PARKING ASSIST UNIT (ULTRASONIC) FOR MALFUNCTION DEPENDING ON REPEATABILITY • Install/connect the part removed/disconnected during the troubleshooting procedure. • Clear the DTC recorded in the memory. (See CLEARING DTC.) • Perform the DTC inspection for the vehicle control module (VCM). (See DTC INSPECTION.) • Is the same Pending DTC present?	Yes	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 [(E)].) If the CAN communication is normal, replace the parking assist unit (ultrasonic) and perform the repair completion verification. (See PARKING ASSIST UNIT (ULTRASONIC) REMOVAL/INSTALLATION.)
No	Perform the [ACTION FOR NON-REPEATABLE MALFUNCTIONS]. (See TROUBLESHOOTING PROCEDURE [(E)].) If DTC is displayed • Repeat the diagnosis from Step 1. If DTC is not displayed • Go to repair completion verification 2.
Repair completion verification 1	VERIFY THAT VEHICLE IS REPAIRED • Install/connect the part removed/disconnected during the troubleshooting procedure. • Clear the DTC recorded in the memory. (See CLEARING DTC.) • Perform the DTC inspection for the vehicle control module (VCM). (See DTC INSPECTION.) • Is the same Pending DTC present?	Yes	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 [(E)].) If the CAN communication is normal, perform the diagnosis from Step 1. • If the malfunction recurs, replace the body control module (BCM), then go to the next step. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION [(E)].)
No	Go to the next step.
Repair completion verification 2	VERIFY IF OTHER DTC IS DISPLAYED • Perform the DTC inspection. (See DTC INSPECTION.) • Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
No	DTC troubleshooting completed.

With Mazda M Hybrid

Outline

System malfunction location

Error signal received from other modules of parking assist unit (ultrasonic)

Detection condition

•  The vehicle control module (VCM) detects that the parking assist unit (ultrasonic) received error signals or a configuration data error from the following modules for 20 s.

―  Electronically controlled brake unit

―  Steering angle sensor

―  Vehicle control module (VCM)

―  Body control module (BCM)

Fail-safe

(See DTC TABLE [VEHICLE CONTROL MODULE (E)].)

Possible cause

•  Configuration data error

•  Malfunction in each CAN communication related module

―  Parking assist unit (ultrasonic)

―  Electronically controlled brake unit

―  Steering angle sensor

―  Vehicle control module (VCM)

―  Body control module (BCM)

•  Cariblating yaw rate for vehicle control module (VCM) not implemented or error

System wiring diagram

Not applicable

Connector diagram

Not applicable

System malfunction location	Error signal received from other modules of parking assist unit (ultrasonic)
Detection condition	• The vehicle control module (VCM) detects that the parking assist unit (ultrasonic) received error signals or a configuration data error from the following modules for 20 s. ― Electronically controlled brake unit ― Steering angle sensor ― Vehicle control module (VCM) ― Body control module (BCM)
Fail-safe	(See DTC TABLE [VEHICLE CONTROL MODULE (E)].)
Possible cause	• Configuration data error • Malfunction in each CAN communication related module ― Parking assist unit (ultrasonic) ― Electronically controlled brake unit ― Steering angle sensor ― Vehicle control module (VCM) ― Body control module (BCM) • Cariblating yaw rate for vehicle control module (VCM) not implemented or error
System wiring diagram	Not applicable
Connector diagram	Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action

1

INSPECT VEHICLE CONTROL MODULE (VCM) AND BODY CONTROL MODULE (BCM) FOR MALFUNCTION

•  Perform the DTC inspection for the vehicle control module (VCM) and the body control module (BCM).
(See DTC INSPECTION.)

•  Are any of the following DTCs displayed?

―  DTC related to internal malfunction in body control module (BCM)

―  DTC related to internal malfunction in vehicle control module (VCM)

―  C0063:54 for vehicle control module (VCM)

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [VEHICLE CONTROL MODULE (E)].)

(See DTC TABLE [BODY CONTROL MODULE (BCM) (E)].)

No

Go to the next step.

2

VERIFY SOPHISTICATED AIRBAG SENSOR (SAS) CONTROL MODULE AND BODY CONTROL MODULE (BCM) REPLACEMENT RECORD

•  Verify if the Sophisticated Airbag Sensor (SAS) control module or the body control module (BCM) has been replaced before performing this troubleshooting procedure.

•  Has the Sophisticated Airbag Sensor (SAS) control module or the body control module (BCM) been replaced?

Yes

After implementing the required servicing according to procedure when replacing a module, perform the repair completion verification.

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

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

(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION [(E)].)

No

Go to the next step.

3

INSPECT PARKING ASSIST UNIT (ULTRASONIC) FOR MALFUNCTION

•  Perform the DTC inspection for the parking assist unit (ultrasonic).
(See DTC INSPECTION.)

•  Is a DTC displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [PARKING ASSIST UNIT (ULTRASONIC) (E)].)

No

Go to the next step.

4

VERIFY ELECTRONICALLY CONTROLLED BRAKE UNIT DTCs

•  Perform the DTC inspection for the electronically controlled brake unit.
(See DTC INSPECTION.)

•  Is a DTC displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [ELECTRONICALLY CONTROLLED BRAKE UNIT].)

No

Go to the next step.

5

VERIFY STEERING ANGLE SENSOR RELATED DTCs

•  Perform the DTC inspection for the body control module (BCM).
(See DTC INSPECTION.)

•  Is a steering angle sensor related DTC displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [BODY CONTROL MODULE (BCM) (E)].)

No

Go to the next step.

6

VERIFY ALL SYSTEM DTCs

•  Perform the CMDTC self-test.
(See DTC INSPECTION.)

•  Are any DTCs other than this DTC displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

Go to the next step.

7

PERFORM THE CARIBLATING YAW RATE FOR VEHICLE CONTROL MODULE (VCM)

•  Perform the cariblating yaw rate for vehicle control module (VCM) using the M-MDS.
(See VCM INITIAL SETTING.)

•  Switch the ignition OFF.

•  Clear the DTC recorded in the memory.
(See CLEARING DTC.)

•  Perform the DTC inspection for the vehicle control module (VCM).
(See DTC INSPECTION.)

•  Is the same Pending DTC present?

Yes

Go to the next step.

No

Go to repair completion verification 2.

8

INSPECT PARKING ASSIST UNIT (ULTRASONIC) FOR MALFUNCTION DEPENDING ON REPEATABILITY

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

•  Clear the DTC recorded in the memory.
(See CLEARING DTC.)

•  Perform the DTC inspection for the vehicle control module (VCM).
(See DTC INSPECTION.)

•  Is the same Pending DTC present?

Yes

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 [(E)].)

If the CAN communication is normal, replace the parking assist unit (ultrasonic) and perform the repair completion verification.

(See PARKING ASSIST UNIT (ULTRASONIC) REMOVAL/INSTALLATION.)

No

Perform the [ACTION FOR NON-REPEATABLE MALFUNCTIONS].

(See TROUBLESHOOTING PROCEDURE [(E)].)

If DTC is displayed

•  Repeat the diagnosis from Step 1.

If DTC is not displayed

•  Go to repair completion verification 2.

Repair completion verification 1

VERIFY THAT VEHICLE IS REPAIRED

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

•  Clear the DTC recorded in the memory.
(See CLEARING DTC.)

•  Perform the DTC inspection for the vehicle control module (VCM).
(See DTC INSPECTION.)

•  Is the same Pending DTC present?

Yes

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 [(E)].)

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

•  If the malfunction recurs, replace the body control module (BCM), then go to the next step.
(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION [(E)].)

No

Go to the next step.

Repair completion verification 2

VERIFY IF OTHER DTC IS DISPLAYED

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

•  Are any other DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

DTC troubleshooting completed.