Mazda 6. Manual - part 61

EXTERIOR LIGHTING SYSTEM 

T–20–3

T–20

T

PID/Data monitor table (RHID)

*

: Unnecessary for diagnosis

Active Command Modes Function 

•

The simulation function optionally selects simulation items for output related parts that are set in the auto 
leveling control unit (main), and operates the output related parts independent of the auto leveling control unit 
(main).

•

An SST (WDS or equivalent) is used to activate this function.

Active Command Modes Table (LHID)

End Of Sie

PID name

Definition

Operation/unit

(WDS or equivalent)

CCNT

Number of continuous trouble codes

—

ONDEMDTC

Number of on-demand trouble codes

—

RHIDIGNV

Auto leveling control unit (sub) input voltage

VOLTAGE

R_REFLECTOR

Headlight leveling actuator angle control input signal sent from auto leveling 
control unit (main)

ANGLE

STP_MTR_R

Headlight leveling actuator (RH) current position

STEP

PART#SUF

*

Part number identification should be displayed

—

SERIAL#1

*

Auto leveling control unit serial number part 1 should be displayed

—

SERIAL#2

*

Auto leveling control unit serial number part 2 should be displayed

—

SOFTVER

*

Software version number should be displayed

—

L_VOLT_R

Discharge headlight control unit (RH) input voltage

VOLTAGE

GDL_P_R

Output power to discharge headlight bulb (RH)

WATT

GDL_V_R

Output voltage to discharge headlight bulb (RH)

VOLTAGE

Command 

Name

Definition

Operation

Note

CALAXLSN#

Command for headlight zeroset use

ON/OFF

Ignition key at ON 

(Engine OFF), 

and headlight ON

HDL_POS#

Calibration: Moves headlight actuator to position at time of headlight 
zeroset

Calibration/

Low/High/

Auto

Low: Moves headlight actuator in downward direction

High: Moves headlight actuator in upward direction

Auto: Performs automatic control (Headlight leveling actuator is controlled 
by auto leveling control unit (main))

EXTERIOR LIGHTING SYSTEM 

T–21

T

T

TBODY ELECTRICAL SYSTEM

RUNNING LIGHT SYSTEM

A6E811201052T08

Outline

•

The running light system operates the low-beam headlight and TNS automatically when the ignition switch 
turns on. It is controlled by the running light unit.

System Diagram

Outline Of System Operation

EXTERIOR LIGHTING SYSTEM

A6E8112T122

1

Running light unit

2

Relay A

3

Relay B

4

Headlight relay

5

Headlight (low-beam)

6

Headlight (high-beam)

7

Ignition switch

8

TNS  relay

9

Parking light/taillight/license plate light

10

Front fog light relay

11

Front fog light

12

Front and rear fog light switch

13

Illumination light

14

Headlight switch

15

Headlight

16

Flash-to-pass

Operation condition (Input 

signal)

Operation condition of illumination (Output signal)

Low beam 

headlight

High beam 

headlight

TNS

Illumination 

light

Front fog light

Ignition switch at ON

ON

OFF

ON

OFF

Does not illuminate

Ignition switch at ON and 
headlight switch at TNS position

OFF

OFF

ON

ON

Can be illuminated

Ignition switch at ON and flash-to-
pass on

ON

ON

ON

OFF

Does not illuminate

T–22

EXTERIOR LIGHTING SYSTEM 

System Operation
When the ignition switch turns to on:

1. Two transistors are turned on with current (1) flowing in transistor 1, and current (2) in transistor 2.
2. When transistors 1 and 2 are on, the headlight relay and TNS relay turn on, and the headlights (low-beam), 

parking lights/taillights/license plate light illuminate.

A6E8112T123

1

Running light unit

2

Relay  A

3

Relay  B

4

Headlight relay

5

Headlight (low-beam)

6

Headlight (high-beam)

7

Ignition switch

8

TNS  relay

9

Parking light/taillight/license plate light

10

Front fog light relay

11

Front fog light

12

Front and rear fog light switch

13

Illumination light

14

Headlight switch

15

Headlight

16

Flash-to-pass

17

Transistor 1

18

Transistor 2

EXTERIOR LIGHTING SYSTEM 

T–23

T

T

When the ignition switch is at ON and the headlight switch is at TNS position:

1. When the headlight switch is turned to the TNS position, battery voltage from the TNS relay flows from the 

headlight switch to the ground, and the TNS relay is turned on.

2. When the TNS is on, the parking lights/taillights/license plate light illuminate. Also, current (1) flows in relay B, 

and relay B is turned on.

3. When relay B is on, the illumination light illuminates.

A6E8112T124

1

Running light unit

2

Relay A

3

Relay B

4

Headlight relay

5

Headlight (low-beam)

6

Headlight (high-beam)

7

Ignition switch

8

TNS  relay

9

Parking light/taillight/license plate light

10

Front fog light relay

11

Front fog light

12

Front and rear fog light switch

13

Illumination light

14

Headlight switch

15

Headlight

16

Flash-to-pass

17

Transistor 1