vehicle electrical units & vehicle chassis units (c)

The function of the three position rocker switch on an electric sun roof is to

• Amplify the motor torque

• Provide an anti trap feature

• Allow for varying battery voltages

• Reverse the current supply to the motor

What are the tools shown in the image used to remove and refit?

• Speakers

• Cd player/radio

• Parking sensors

• Tank sender units

What is the main purpose of tyre lubricant?

• To break the tyre bead more easily

• To lock the tyre onto the wheel

• To stop air leaking from the tyre

• To help the tyre slip over the rim

Auxillary systems are often operated through a body control unit this is a

• Computer

• Motor

• Relay

• Battery

What is the main reason to follow manufacturers instruction when fitting componenet?

• To ensure parts are fitted correctly

• To reduce company overheads

• To improve company profits

• To reduce number of hours sold

The diagram shows a fuel pump circuit , what is the purpose of the FP relay?

• To protect the fuel pump from producing too higher pressure

• To use a small current to allow a large current flow

• To switch the pump on for short periods when cranking

• To reverse the pump current and fuel flow for cold starting

Rain sense wiper systems operate

• Only when the headlight are on

• Only at low ambient temperatures

• On driver demand

• When moisture is detected

What is the purpose of the tool shown in the image?

• Checking tread depths

• Measure wheel run-out

• Remove the valve core

• Checking tyre temperature

Which one of the following would make all the lighting bulbs constantly abnormally bright?

• Loose negative battery terminal

• Faulty alternator voltage regulator

• Loose positive battery terminal

• Faulty live feed to the lighting switch

Which one of the following must be carried out on completion of an electric window regulator replacement ?

• Check opening and closing limits

• Change the door key barrel

• Re align the door hinge pins

• Adjust the B post striker plate