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RUNNING LIGHT SYSTEM OPERATION

id091800103000

Vehicle without front fog light

IG | H/L SW | DIMMER SW | HEAD LAMP (4 LAMP) | EXTERIOR LAMP | INTERIOR LAMP | R-FOG |
--- | --- | --- | --- | --- | --- | --- | ---
TNS | HEAD
LOW | HIGH
OFF | OFF | OFF | LOW | OFF | OFF | OFF | OFF | NOT PERMITTED |
PASS | ON | ON | OFF | OFF
HIGH | OFF | OFF | OFF | OFF
ON | OFF | LOW | OFF | OFF | ON | ON | NOT PERMITTED
PASS | ON | ON | ON | ON
HIGH | OFF | OFF | ON | ON
ON | LOW | ON | OFF | ON | ON | PERMITTED
PASS | ON | ON | ON | ON
HIGH | ON | ON | ON | ON
ON | OFF | OFF | LOW | ON | OFF | ON | OFF | NOT PERMITTED | RUNNING LIGHT MODE
PASS | ON | ON | ON | OFF
HIGH | ON | OFF | ON | OFF
ON | OFF | LOW | OFF | OFF | ON | ON | NOT PERMITTED |
PASS | ON | ON | ON | ON
HIGH | OFF | OFF | ON | ON
ON | LOW | ON | OFF | ON | ON | PERMITTED
PASS | ON | ON | ON | ON
HIGH | ON | ON | ON | ON

Vehicle with front fog light

IG | H/L SW | DIMMER SW | HEAD LAMP (4 LAMP) | EXTERIOR LAMP | INTERIOR LAMP | F-FOG | R-FOG |
--- | --- | --- | --- | --- | --- | --- | --- | ---
TNS | HEAD
LOW | HIGH
OFF | OFF | OFF | LOW | OFF | OFF | OFF | OFF | NOT PERMITTED | NOT PERMITTED |
PASS | ON | ON | OFF | OFF
HIGH | OFF | OFF | OFF | OFF
ON | OFF | LOW | OFF | OFF | ON | ON | PERMITTED | PERMITTED
PASS | ON | ON | ON | ON
HIGH | OFF | OFF | ON | ON
ON | LOW | ON | OFF | ON | ON | PERMITTED | PERMITTED
PASS | ON | ON | ON | ON
HIGH | ON | ON | ON | ON
ON | OFF | OFF | LOW | ON | OFF | ON | OFF | NOT PERMITTED | NOT PERMITTED | RUNNING LIGHT MODE
PASS | ON | ON | ON | OFF
HIGH | ON | OFF | ON | OFF
ON | OFF | LOW | OFF | OFF | ON | ON | PERMITTED | PERMITTED |
PASS | ON | ON | ON | ON
HIGH | OFF | OFF | ON | ON
ON | LOW | ON | OFF | ON | ON | PERMITTED | PERMITTED
PASS | ON | ON | ON | ON
HIGH | ON | ON | ON | ON

## 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.

Vehicle without auto light system

.

1 | Running light control module
2 | Relay A
3 | Relay B
4 | Headlight relay
5 | Headlight (low-beam)
6 | Headlight (high-beam)
7 | TNS relay
8 | Parking light/taillight/license plate light
9 | Front fog light relay
10 | Front fog light
11 | Rear fog light relay
12 | Rear fog light
13 | Front and rear fog light switch
14 | Front fog light switch
15 | Rear fog light switch
16 | Illumination light
17 | Headlight switch
18 | Headlight
19 | Flash-to-pass
20 | Transistor 1
21 | Transistor 2

Vehicle with auto light system

.

1 | Auto light/running light control module
2 | Relay A
3 | Relay B
4 | Headlight relay
5 | Headlight (low-beam)
6 | Headlight (high-beam)
7 | TNS relay
8 | Parking light/taillight/license plate light
9 | Front fog light relay
10 | Front fog light
11 | Rear fog light relay
12 | Rear fog light
13 | Front and rear fog light switch
14 | Front fog light switch
15 | Rear fog light switch
16 | Illumination light
17 | Headlight switch
18 | Headlight
19 | Flash-to-pass
20 | AUTO
21 | Auto light sensor
22 | ABS HU/CM or DSC HU/CM

### 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.

Vehicle without auto light system

.

1 | Running light control module
2 | Relay A
3 | Relay B
4 | Headlight relay
5 | Headlight (low-beam)
6 | Headlight (high-beam)
7 | TNS relay
8 | Parking light/taillight/license plate light
9 | Front fog light relay
10 | Front fog light
11 | Rear fog light relay
12 | Rear fog light
13 | Front and rear fog light switch
14 | Front fog light switch
15 | Rear fog light switch
16 | Illumination light
17 | Headlight switch
18 | Headlight
19 | Flash-to-pass

Vehicle with auto light system

.

1 | Auto light/running light control module
2 | Relay A
3 | Relay B
4 | Headlight relay
5 | Headlight (low-beam)
6 | Headlight (high-beam)
7 | TNS relay
8 | Parking light/taillight/license plate light
9 | Front fog light relay
10 | Front fog light
11 | Rear fog light relay
12 | Rear fog light
13 | Front and rear fog light switch
14 | Front fog light switch
15 | Rear fog light switch
16 | Illumination light
17 | Headlight switch
18 | Headlight
19 | Flash-to-pass
20 | AUTO
21 | Auto light sensor
22 | ABS HU/CM or DSC HU/CM

### When the ignition switch is at ON and when the flash-to-pass is on:

1. When the headlight switch is turned to the flash-to-pass position, battery voltage from the headlight relay flows from the headlight switch to the ground.

2. When the headlight relay and TNS relay are on, the headlights (low-beam), parking lights/taillights/license plate light illuminate. Due to the flow of current (1) in relay A are turned on.

3. When relay A turns on, and the headlights (high-beam) illuminate.

Vehicle without auto light system

.

1 | Running light control module
2 | Relay A
3 | Relay B
4 | Headlight relay
5 | Headlight (low-beam)
6 | Headlight (high-beam)
7 | TNS relay
8 | Parking light/taillight/license plate light
9 | Front fog light relay
10 | Front fog light
11 | Rear fog light relay
12 | Rear fog light
13 | Front and rear fog light switch
14 | Front fog light switch
15 | Rear fog light switch
16 | Illumination light
17 | Headlight switch
18 | Headlight
19 | Flash-to-pass
20 | Transistor

Vehicle with auto light system

.

1 | Auto light/running light control module
2 | Relay A
3 | Relay B
4 | Headlight relay
5 | Headlight (low-beam)
6 | Headlight (high-beam)
7 | TNS relay
8 | Parking light/taillight/license plate light
9 | Front fog light relay
10 | Front fog light
11 | Rear fog light relay
12 | Rear fog light
13 | Front and rear fog light switch
14 | Front fog light switch
15 | Rear fog light switch
16 | Illumination light
17 | Headlight switch
18 | Headlight
19 | Flash-to-pass
20 | AUTO
21 | Auto light sensor
22 | ABS HU/CM or DSC HU/CM