Mazda 6. Manual - part 55

T–1

T

T

BODY ELECTRICAL SYSTEM

ABBREVIATIONS .................................................. T-2

ABBREVIATIONS ................................................ T-2

OUTLINE ................................................................ T-3

OUTLINE OF CONSTRUCTION ......................... T-3
FEATURES .......................................................... T-3

POWER SYSTEM................................................... T-4

RELAY LOCATION.............................................. T-4

MULITIPLE COMMUNICATION SYSTEM ............. T-5

OUTLINE ............................................................. T-5
STRUCTRURAL VIEW ........................................ T-5
SYSTEM WIRING DIAGRAM .............................. T-6
MECHANISM OF CAN SYSTE-RELATED 

MODULE........................................................... T-6

TWIST PAIR ........................................................ T-7
CAN SYSTEM OUTLINE ..................................... T-8
VEHICLE CAN SYSTEM ..................................... T-8
CAN SIGNAL-CHART.......................................... T-9
ON-BOARD DIAGNOSTIC FUNCTION............. T-10

EXTERIOR LIGHTING SYSTEM.......................... T-13

OUTLINE ........................................................... T-13
STRUCTURAL VIEW......................................... T-14
FRONT COMBINATION LIGHT......................... T-15
DISCHARGE HEADLIGHT ................................ T-15
DISCHARGE HEADLIGHT CONTROL UNIT .... T-16
ON-BOARD DIAGNOSTIC FUNCTION............. T-17
HEADLIGHT AUTO LEVELING SYSTEM ...... T-17-2
AUTO LEVELING CONTROL UNIT .................. T-20
ON-BOARD DIAGNOSTIC FUNCTION.......... T-20-1
RUNNING LIGHT SYSTEM............................... T-21
REAR COMBINATION LIGHT AND 

INBOARD COMBINATION LIGHT.................. T-25

INTERIOR LIGHTING SYSTEM ........................... T-26

STRUCTURAL VIEW......................................... T-26
OUTLINE ........................................................... T-27
INTERIOR LIGHT CONTROL SYSTEM ............ T-28

WIPER AND WASHER......................................... T-30

OUTLINE ........................................................... T-30
STRUCTURAL VIEW......................................... T-31
WINDSHIELD WIPER SYSTEM 

(VEHICLE-SPEED SENSING TYPE) ............. T-32

WARNING AND INDICATOR SYSTEM ............... T-35

OUTLINE ........................................................... T-35
INSTRUMENT CLUSTER.................................. T-35
SYSTEM WIRING DIAGRAM ............................ T-37
INPUT/OUTPUT CHECK MODE ....................... T-39
PID/DATA MONITOR AND RECORD ............... T-39
DRIVE INFORMATION SYSTEM ...................... T-40
HORN ................................................................ T-42

THEFT-DETERRENT SYSTEM............................ T-43

OUTLINE ........................................................... T-43
STRUCTURAL VIEW......................................... T-43
SYSTEM WIRING DIAGRAM ............................ T-44
SYSTEM FLOWCHART .................................... T-45
THEFT-DETERRENT SIREN ............................ T-46
INTRUDER SENSOR ........................................ T-47

IMMOBILIZER SYSTEM....................................... T-48

OUTLINE ........................................................... T-48
STRUCTURAL VIEW......................................... T-48

SYSTEM WIRING DIAGRAM ............................ T-49

AUDIO AND NAVIGATION SYSTEM .................. T-49

OUTLINE (AUDIO SYSTEM) ............................. T-49
STRUCTURAL VIEW (AUDIO SYSTEM) .......... T-50
BLOCK DIAGRAM (AUDIO SYSTEM)............... T-51
SPECIFICATIONS (AUDIO SYSTEM)............... T-52
CENTER PANEL MODULE ............................... T-53
AUDIO UNIT ...................................................... T-58
BASE UNIT ........................................................ T-58
AUTO LEVEL CONTROL (ALC) FUNCTION .... T-59
ON-BOARD DIAGNOSTIC SYSTEM 

(AUDIO SYSTEM)........................................... T-59

OUTLINE (CAR-NAVIGATION SYSTEM) ......... T-63
STRUCTURAL VIEW 

(CAR-NAVIGATION SYSTEM) ....................... T-63

BLOCK DIAGRAM 

(CAR-NAVIGATION SYSTEM) ....................... T-64

SPECIFICATIONS 

(CAR-NAVIGATION SYSTEM) ....................... T-64

COMPONENT PART AND FUNCTIONS........... T-65
CAR-NAVIGATION UNIT................................... T-66
LCD UNIT........................................................... T-68
REMOTE CONTROL AND CRADLE ................. T-70
NAVIGATION FUNCTION ................................. T-71

CRUISE CONTROL SYSTEM .............................. T-83

OUTLINE............................................................ T-83
STRUCTURAL VIEW......................................... T-83
SYSTEM WIRING DIAGRAM ............................ T-84
CRUISE ACTUATOR......................................... T-85
ON-BOARD DIAGNOSTIC ................................ T-86

AIR BAG SYSTEM ............................................... T-87

OUTLINE............................................................ T-87
STRUCTURAL VIEW......................................... T-87
SYSTEM WIRING DIAGRAM ............................ T-88
SAS UNIT........................................................... T-89
DRIVER-SIDE AIR BAG MODULE .................... T-91
PASSENGER-SIDE AIR BAG MODULE ........... T-92
SIDE AIR BAG MODULE................................... T-93
CURTAIN AIR BAG MODULE ........................... T-94
PRE-TENSIONER SEAT BELT ......................... T-95
ON-BOARD DIAGNOSTIC FUNCTION............. T-97

T–2

ABBREVIATIONS 

ABBREVIATIONS

A6E810101088T01

End Of Sie

ABBREVIATIONS

ABS

Antilock brake system

ACC

Accessories

ALC

Auto level control

ATX

Automatic transaxle

CAN

Controller area network

CM

Control module

CPU

Central processing unit

DIS

Drive information system

DRL

Daytime running light

DSC

Dynamic stability control

DTC

Diagnostic trouble code

EBD

Electronic brakeforce distribution

ECT

Engine coolant temperature

GPS

Global positioning system

HI

High

HU

Hydraulic unit

IG

Ignition

INT

Intermittent

LCD

Liquid crystal display

LED

Light emitting diode

LH

Left hand

L.H.D.

Left hand drive

LO

Low

MTX

Manual transaxle

PATS

Passive anti theft-system

PCM

Powertrain control module

PID

Parameter identification

RDS

Radio data system

RH

Right hand

R.H.D.

Right hand drive

SAS

Sophisticated air bag sensor

SEC.

Section

SST

Special service tool

TFT

Thin film transistor

TNS

Tail number side lights

TR

Transmission (Transaxle) range

4SD

4 door sedan

5HB

5 door hatchback

OUTLINE 

T–3

T

T

OUTLINE OF CONSTRUCTION

A6E810201088T01

•

The construction and operation of the body electrical system is essentially carried over from that of the 626 
(GF) model, except the following features. 

End Of Sie

FEATURES

A6E810201088T02

Improved Serviceability

•

A controller area network (CAN) system has been adopted for communication between the PCM, ABS (ABS/
TCS) HU/CM or DSC HU/CM, and instrument cluster.

•

Cruise actuator with built-in control module has been adopted.

Improved Marketability

•

Headlight with built-in front fog light and front turn and parking light has been adopted.

•

A projector type has been adopted to the headlight (low-beam) and front fog light.

•

Stepped reflectors have been adopted to the rear combination lights and inboard combination lights.

•

Information display has been adopted to instrument panel center.

•

A vehicle-speed sensing type windshield wiper system has been adopted.

•

Drive information system has been adopted to instrument cluster and information display

•

 Auto level control (ALC) function has been adopted to audio unit (base unit).

•

Car-navigation system has been newly adopted.

Improved Security

•

Theft-deterrent siren and intruder sensor have been adopted to theft-deterrent system.

•

The current immobilizer unit function has been incorporated into the PCM as the passive anti-theft system 
(PATS).

Design Improvement

•

 A center panel module, which integrates the audio control, climate control and other units, has been adopted.

Improved Safety

•

2-step deployment control has been added to the front air bag system (driver- and passenger-side) deployment 
control.

•

Curtain air bag module has been adopted.

Improved Visibility

•

Discharge headlight have been adopted for the headlights (low beam). (For vehicles equipped with discharge 
headlights.)

•

A headlight auto leveling system has been adopted. (For vehicles equipped with discharge headlights.)

End Of Sie

OUTLINE

T–4

POWER SYSTEM 

RELAY LOCATION

A6E811067730T01

POWER SYSTEM

A6E8110T102

1

Cooling fan relay No.2

2

Horn relay

3

Cooling fan relay No.3

4

Stater relay

5

Cooling fan relay No.4

6

Woofer relay

7

Rear window defroster relay

8

Rear fog light relay

9

A/C  relay

10

Main relay

11

Headlight relay

12

TNS relay

13

Cooling fan relay No.1

14

Headlight cleaner relay

15

Front fog light relay

16

Fuel pump relay

17

Blower relay