TIAGO

ELECTRICAL

149

1. EXTERIOR LIGHTS

The lighting system of a motor vehicle consists of lighting and signaling devices mounted or integrated to the

front, sides, rear, and in some cases the top of the motor vehicle. The purpose of this system is to provide

illumination for the driver to operate the vehicle safely after dark, to increase the conspicuity of the vehicle,

and to display information about the vehicle's presence, position, size, direction of travel, and driver's

intentions regarding direction and speed of travel

1.1 TURN SIGNALS & HAZARD LIGHTS

1.1.1 Description

Turn signals — formally called "directional indicators" or "directional signals", and informally known as

"directional‘ s", "blinkers", "indicators" or "flashers" — are signal lights mounted near the left and right front

and rear corners of a vehicle, and sometimes on the sides, used to indicate to other drivers that the operator

intends a lateral change of position (turn or lane change).

1.1.2 Conditional Requirements

Activation –

• Hazard switch is activated or

• Crash is detected or

• Force panic is activated.

Deactivation –

• Hazard switch is deactivated &

• Crash condition is removed &

• Force panic is deactivated.

Tell-tale Indication -

On IC as long as the hazard is activated.

On Fault –

No telltale indication if all bulbs are failed and respective DTC logged.

1.1.3 Operating Voltage Range

DESCRIPTION REQUIREMENT

VOLTAGE

Turn signal

Normal voltage range

9V-16V

Hazard Lights

Normal voltage range

Threshold: If voltage drops below 6V, then it should stop working

AND when voltage rises to/above 7V, then it should start working.

7V-16V