Exam 33: Vehicle Computer Systems

When memory in a vehicle ECM is described as being volatile, what happens to it when the ignition is turned off?

(Multiple Choice)

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Question 41

Technician A says that the term flashing has come to mean any kind of programming to ECMs in the commercial vehicle industry. Technician B says that when new files are flashed to ECM memory, a verification file usually has to be uploaded to the OEM data hub to confirm the new programming. Who is correct?

(Multiple Choice)

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Question 42

Where would a platinum resistance thermometer (PRT) most likely be found on a current truck?

(Multiple Choice)

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Question 43

Which of the following best describes the operating principal of a critical flow venturi (CFV) used as a MAF sensor?

(Multiple Choice)

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Question 44

Showing 41 - 44 of 44

Exam 33: Vehicle Computer Systems

When memory in a vehicle ECM is described as being volatile, what happens to it when the ignition is turned off?

Where would a platinum resistance thermometer (PRT) most likely be found on a current truck?

Which of the following best describes the operating principal of a critical flow venturi (CFV) used as a MAF sensor?

Introduction

Hand and Shop Tools, Precision Tools, and Units of Measurement

Personal and Safety Awareness

Engine Basics

History of the Heat Engine

Power

Engine Powertrain Components

Engine Feedback Assembly

Engine Housing Components

Engine Lubrication Systems

Engine Cooling Systems

Engine Breathing

Engine Retarders

Servicing and Maintenance

Engine Removal, Disassembly, Cleaning,

Diesel Engine Run- in and Performance Testing

Chemistry and Combustion

Diesel Fuel Characteristics

Fuel Subsystems

Fuel Injection Basics and Governor Principles

Injector Nozzles

Port-Helix Metering Injection Pumps

Inlet-Metering Rotary Distributor Pumps

Sleeve-Metering Rotary Distributor Pumps

Single-Actuator Eui Systems

Dual-Actuator Eui Systems

Heui Fuel Systems

Electronic Unit Pump Eup Systems

Cummins Hpi-Tp

Common Rail Systems

Amplified Common Rail Systems

Review of Electrical and Electronics Fundamentals

Ests and Siss

Electrical Wiring, Connector Terminal Repair

Multiplexing

The Connected Vehicle

Natural Gas, Propane, and Biodiesel Fuels

High Voltage Electricity

Hybrid and Hydrogen Fuel Cell Drivetrains

Electric Powertrains

Bosch Edc Systems

Caterpillar Engine Management Systems

Cummins Management Systems

Detroit Diesel Electronic Controls Ddec

Navistar Diamond Logic

Paccar Engine Management Systems

Volvo and Mack Engine Management

Emissions Management

Servicing Maintenance of Exhaust Aftertreatment Systems

Failure Analysis

Troubleshooting and Diagnostics

Filters