Question 1

What is a common electrical fault?

Accepted Answer

All of the above

Question 2

What is the first step in the Diagnostic Philosophy?

Accepted Answer

Know the system

Question 3

Which circuit controls the switch in this relay?

Accepted Answer

86 + 85

Question 4

Mat is the best instructor I've ever seen.

Accepted Answer

true

Question 5

Information can be communicated on 3 main systems: Ethernet, CAN, and _________?

Accepted Answer

LIN

Question 6

In a parallel circuit, total circuit resistance will be higher than the highest circuit resistance.

Accepted Answer

false

Question 7

If CAN Hi voltage is 2.8v, what voltage would we expect to see on CAN Lo?

Accepted Answer

2.2v

Question 8

How much money was in the bribe for question 4?

Accepted Answer

$600

Question 9

When checking for voltage drop across a connector, a drop of 0.1v is observed. This a normal operating condition.

Accepted Answer

true

Question 10

Starting from the top, order the steps listed in the diagnostic approach.

Accepted Answer

Gather machine info remotely / Verify customer complaint Visual Inspection Recall DTC's DTAC Solution search Repair & Verify Repair

Question 11

When testing a wire for resistance, the multimeter reads 0.00v. What is the problem?

Accepted Answer

The meter is on the wrong setting

Question 12

In the 2009 Hit song "Fireflies", how many hugs did the singer receive from the lightning bugs?

Accepted Answer

A thousand

Question 13

What meter test should you use to perform a current draw test?

Accepted Answer

Amperage/Current

Question 14

What check is being performed in this circuit?

Accepted Answer

Voltage Potential

Question 15

A meter reads OL when preforming a resistance check, what does this mean?

Accepted Answer

Out of Limits

Question 16

This is a free question. The answer is C.

Accepted Answer

This one

Question 17

When checking voltage in a series circuit with a 12v source, a voltage drop of 6v is observed over a bulb. There are no other expected loads on the circuit. What is the most likely the problem?

Accepted Answer

High resistance in circuit

Question 18

Select all that apply. A Diagnostic Trouble Code (DTC) contains which of the following pieces of information?

Accepted Answer

TLA/CUI (Three Letter Acronym/Control Unit Identifier), SPN (Suspect Parameter Number), FMI (Fault Mode Indicator)

Question 19

Multimeters used on electronic circuits on John Deere equipment MUST have 10MΩ or Higher input impedance to prevent damage.

Accepted Answer

true

Question 20

A digital signal is any voltage between 0.5v and 4.5v.

Accepted Answer

false

Electrical Diagnostics

2) What is the first step in the Diagnostic Philosophy?

3) Which circuit controls the switch in this relay?

4) Mat is the best instructor I've ever seen.

5) Information can be communicated on 3 main systems: Ethernet, CAN, and _________?

6) In a parallel circuit, total circuit resistance will be higher than the highest circuit resistance.

7) If CAN Hi voltage is 2.8v, what voltage would we expect to see on CAN Lo?

8) How much money was in the bribe for question 4?

9) When checking for voltage drop across a connector, a drop of 0.1v is observed. This a normal operating condition.

10) Starting from the top, order the steps listed in the diagnostic approach.

11) When testing a wire for resistance, the multimeter reads 0.00v. What is the problem?

12) In the 2009 Hit song "Fireflies", how many hugs did the singer receive from the lightning bugs?

13) What meter test should you use to perform a current draw test?

14) What check is being performed in this circuit?

15) A meter reads OL when preforming a resistance check, what does this mean?

16) This is a free question. The answer is C.

17) When checking voltage in a series circuit with a 12v source, a voltage drop of 6v is observed over a bulb. There are no other expected loads on the circuit. What is the most likely the problem?

18) Select all that apply. A Diagnostic Trouble Code (DTC) contains which of the following pieces of information?

19) Multimeters used on electronic circuits on John Deere equipment MUST have 10MΩ or Higher input impedance to prevent damage.

20) A digital signal is any voltage between 0.5v and 4.5v.