Mazda 6 Training Manual page 239

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.
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
EXTERIOR LIGHTING SYSTEM
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
T T
A6E8112T124
T–23