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
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