Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2022 Mazda 3 BaseFACTORY OEM SERVICE PROCEDURE

Module Table

x: Applicable -: Not applicable

MODULE DESCRIPTION

M-MDS display name

Applicable module

Configuration method

Reference

M-MDS [Type A]

M-MDS and global central configuration (GCC)⁽¹⁾ [Type B]

Global central configuration (GCC)⁽¹⁾ [Type C]

BCM

Body control module (BCM)

x

-

-

(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION .)

PCM

PCM

x

-

-

(See PCM REMOVAL/INSTALLATION [VIN 7/VIN L] .)
(See PCM REMOVAL/INSTALLATION [VIN Y] .)

SAS

SAS control module

x

-

-

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

TCM

TCM

-

x

-

(See CONTROL VALVE BODY REMOVAL/INSTALLATION [GW6AX-EL (US)] .)
(See CONTROL VALVE BODY REMOVAL/INSTALLATION [ET6A-EL, ET6AX-EL (US)] .)

CCU

Climate control unit (Full-auto air conditioner)

-

x

-

(See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER (US)] .)

Climate control unit (Manual air conditioner)

-

x

-

(See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [MANUAL AIR CONDITIONER (US)] .)

LFU

LF control unit

-

x

-

(See LF CONTROL UNIT REMOVAL/INSTALLATION .)

ADD

Active driving display

-

x

-

(See ACTIVE DRIVING DISPLAY REMOVAL/INSTALLATION [(US)] .)

DASH_ESU

Dash-electrical supply unit

-

x

-

(See DASH-ELECTRICAL SUPPLY UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER (US)] .)
(See DASH-ELECTRICAL SUPPLY UNIT REMOVAL/INSTALLATION [MANUAL AIR CONDITIONER (US)] .)

ESU

Electrical supply unit (ESU)

-

x

-

(See ELECTRICAL SUPPLY UNIT (ESU) REMOVAL/INSTALLATION .)

IC

Instrument cluster

-

x

-

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION .)

DSC

DSC HU/Control Module

-

x

-

(See DSC HU/Control Module REMOVAL/INSTALLATION [L.H.D. (US)] .) (See DSC HU/Control Module REMOVAL/INSTALLATION [L.H.D. (E)] .)

Electronically controlled brake unit

-

x

-

(See ELECTRONICALLY CONTROLLED BRAKE UNIT REMOVAL/INSTALLATION [L.H.D.] .)

TCU

Telematics communication unit

-

-

x

(See TELEMATICS COMMUNICATION UNIT REMOVAL/INSTALLATION .)

ALH/AFS/ALV

Adaptive front lighting system (AFS) control module

-

-

x

(See ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE REMOVAL/INSTALLATION .)

Adaptive LED headlights control module

-

-

x

Auto leveling control module

-

-

x

EPS

Electric power steering (EPS) control module

-

-

x

(See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION [(US)] .)

DOOR_ESU_D

Door-electrical supply unit (driver-side)

-

-

x

(See DOOR-ELECTRICAL SUPPLY UNIT REMOVAL/INSTALLATION .)

DOOR_ESU_P

Door-electrical supply unit (passenger-side)

-

-

x

(See DOOR-ELECTRICAL SUPPLY UNIT REMOVAL/INSTALLATION .)

CMU

Connectivity master unit (CMU)

-

-

x

(See CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION .)

VMC

360° view monitor control module

-

-

x

(See 360° VIEW MONITOR CONTROL MODULE REMOVAL/INSTALLATION [(US)] .)

⁽¹⁾	With GCC, the information required for configuration of each module is obtained from the BCM and written to the applicable module via CAN communication.

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.

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