Exam 23: Electrical Accessories

Most timers for rear window defroster systems operate for twenty minutes.

Technician A says a faulty unlock relay could cause the power door locks to lock but not unlock the doors. Technician B says a faulty actuator could cause this. Who is correct?

A six-way power seat is NOT operating in any switch position. Technician A says to check the circuit breaker. Technician B says there may be excessive resistance in the electrical circuit. Who is correct?

A(n)____________________ type alarm system must be armed with a key fob transmitter, key, keypad, or toggle switch.

What safety precautions should be observed when diagnosing a horn circuit problem?

The purpose of a dual horn system is to provide two different horn sounds.

The electric trunk release system uses a ______ to open the trunk lid.

Heated, or self-defrosting, front windshield systems rely on an electrical current being sent through a microthin ____________________ coating on the inside of a windshield.

The wireless smart key that arms and disarms the antitheft system and allows the vehicle to be started is called a ______.

Cruise control systems are being discussed. Technician A says the cruise control system uses a governor valve operated by automatic transmission fluid [ATF] pressure to control the throttle. Technician B says vehicles that use electronic throttle control [throttle by wire] do not require a separate cruise control module, stepper motor, or cable to control engine speed. Who is correct?

Identify the various components of typical audio and video systems.

The direction that the power window motor moves the glass is determined by the ____________________ of the supply voltage.

Rear defrosters generally have a relay with a timer to allow the defogger to ______.

A blower motor does not work on three of the four speeds but works on high. Technician A says a faulty blower high speed relay is the cause. Technician B says a faulty blower switch may be the cause. Who is correct?

A power lumbar support uses an electrically inflatable ____________________ to improve the driver's comfort by supporting the lower portion of the spinal column.

The park switch for a windshield wiper system is located ______.

Smart keys are being discussed. Technician A says the smart key must be inserted into a slot in the instrument panel before the engine can be started. Technician B says some smart keys can unlock the doors and allow the engine to be started when the smart key is within a few feet of the vehicle. Who is correct ?

Antitheft devices are being discussed. Technician A says the master key can operate the ignition, and unlock all the doors, trunk, and glove box. Technician B says the valet key only works on the doors and the ignition. Who is correct?

A horn can be tested by connecting a jumper wire between the battery positive terminal and the horn power terminal.

The most common rear window defogger system failure is damage to the heating grids on the window.