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Powertrain Electronics Assessment
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1.
All these are factors that affect the resistance of an electrical conductor EXCEPT:
Weight
Temperature
Length
Cross-sectional area
2.
A technician is testing a driver circuit as shown. What should the meter read with a good module?
Powertrain driver circuit
0 volts
Battery voltage
12 volts
6 volts
3.
In this simple circuit, the voltage drop across the bulb is very high but does not equal the total voltage rise. What does this indicate?
Powertrain Simple Cicuit
Excessive resistance
Very high current flow
Excessive capacitance
The bulb will likely illuminate normally
4.
Technician A states that if a 5V REF signal to a sensor is shorted to ground, the ECU will be damaged. Technician B states that the module may need reprogramming if this happens. Who is correct?
Technician A
Technician B
Both technicians
Neither technician
5.
Technician A states that a voltage divider circuit can be used to represent information. Technician B states that a voltage divider circuit is often used as a high-side driver. Who is correct?
Technician A
Technician B
Both technicians
Neither technician
6.
Technician A states that the voltage PID for a sensor that uses a pullup circuit should go high if the sensor is unplugged. Technician B says the voltage PID for a sensor that uses a pullup circuit should go low if the sensor is unplugged. Who is correct?
Technician A
Technician B
Both Technicians
Neither technician
7.
A technician suspects that a 3-wire sensor has a wiring or module problem and finds the following. What is the most likely fault?
Powertrain 3 wire sensor
The module GND circuit has failed
The module is using a pull-down circuit
The signal wire is shorted to voltage
The module has failed
8.
A Variable Reluctance sensor can be tested for what two values with a DMM?
Amperes and Frequency
Voltage and Resistance
Duty Cycle and Resistance
Voltage and Amperes
9.
The illustration below shows a circuit being tested for what?
Powertrain Circuit Testing
Current
Frequency
Voltage
Resistance
10.
A PCM high side driver:
Is only used for control of high current devices
Handles power side circuit control to a device
Makes fused circuit protection obsolete
Handles ground side circuit control to a device
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