Audi TT Electrical and Infotainment Systems 5

Question 1

How must an ammeter be connected to measure circuit current?

Accepted Answer

In series with the circuit

Answer

Current is measured by placing the meter in series so all current flows through it.

Question 2

On a standard ISO automotive relay, which terminals connect to the control coil?

Accepted Answer

85 and 86

Answer

Terminals 85 and 86 energize the coil, while 30 and 87 form the switched circuit.

Question 3

Why is extra caution required when servicing xenon headlights on an Audi TT?

Accepted Answer

Their igniters produce extremely high voltage

Answer

Xenon igniters generate very high ignition voltage that can cause serious injury.

Question 4

On the Mk2 and Mk3 TT, when does the electrically operated rear spoiler automatically deploy?

Accepted Answer

At around 75 mph (120 km/h)

Answer

The spoiler extends automatically at about 120 km/h and retracts at lower speed, and can also be raised manually.

Question 5

A voltage drop test on a ground circuit under load shows 1.2 V. What does this indicate?

Accepted Answer

Excessive resistance in the ground path

Answer

A healthy ground should drop only a few tenths of a volt under load, so 1.2 V indicates high resistance.

Audi TT - Certified Audi TT Specialist Practice Test