Exam 12: Instrumentation and Warning Lampsinstrumentation and Warning Lamp System Diagnosis and Repair

Most EICs have a prove-out display each time the ignition switch  is turned on.

Which of the following is NOT contained in a three-coil gauge?

The electromechanical odometer uses a(n) ____stepper motor that receives control signals from the speedometer circuit.

Which of the following is NOT true about a quartz analog speedometer system?

The electromechanical gauge acts as a(n) ____since the gauge reading changes with variations in resistance.

Which of the following is NOT true about a quartz analog speedometer system?

Most electronic instrument clusters (EICs) have a(n) ____ display each time the ignition switch is turned on.

On most systems, the odometer and speedometer receive their input from the vehicle ____ sensor.

Digital instrument clusters use what type of displays to notify the driver of monitored system conditions.

The head-up display (HUD) displays visual images onto radio face.

It is normal for some electromagnetic gauges to remain at their last position when the ignition is turned off.

Explain the operation of computer-driven warning lamps.

Technician A says depending on the manufacturer, a new IC chip may be programmed to display the last odometer reading. Technician B says some manufacturers provide for replacement of the IC chip if it fails. Who is correct?

Technician A says needle movement in a three-coil gauge is the result of the interaction of three electromagnets and the total field effect upon a permanent magnet. Technician B says interaction of a permanent magnet and an electromagnet, and the total field effect causes the needle movement in the d'Arsonval gauge. Who is correct?

All gauges require the use what type of sending unit?

Computer-driven quartz swing needle displays are similar in design to the ____ electromagnetic gauges used in conventional analog instrument panels.

The service minder is activated at 3,000 miles after the last oil change even though the service interval is set for 6,000 miles. Technician A says it is possible the minder came on due to heavy engine loads. Technician B says the vehicle speed sensor is not reading accurately. Who is correct?

Technician A says, if the speedometer is not operating and the BCM and/or cluster module passes the self-test, the fault may be in the VSS circuit. Technician B says if the speedometer works but the odometer does not, the vehicle speed sensor likely is the problem. Who is correct?

A vehicle's electronic digital fuel gauge is always indicating a full tank. All of the other instrument gauges are operating correctly. Which of the following is the most likely cause of this problem?

Technician A says the thermistor sensor measures pressure. Technician B says a voltmeter is used to test a thermistor sensor unit. Who is correct?