95-HV-950_student-assignments_REVA.pdf
Student Assignments for HV-950 Diesel Engine Training Bench 95-HV-950_REVA © ConsuLab Educatech Inc, 2026. All rights reserved. 95-HV-950 Table of contents 400-6330 Zéphirin-Paquet St. Québec QC G2C 0M3 Canada consulab.com info@consulab.com Toll-free: +1 (800) 567-0791 USA: +1 (810) 222-4525 Canada: +1 (418) 688-9067 Fax: +1 (418) 843-3444 2 © ConsuLab Educatech Inc, 2026. All rights reserved. No part of this work may be reproduced or transmitted in any form by any means, electronic, mechanical, including photocopying and recording, or by any information storage or retrieval system, without written permission from the publisher. Printed in Canada. Table of Contents General description 3 Educational Advantages 3 Student Assignments SA-1 Component identification — Basic 5 SA-2A Component Identification — Specific 7 SA-2B Component Identification — Dashboard Specific ID 9 SA-3 Component Identification — Sensors ID / HD Diesel 12 SA-4 Component Identification — Actuator ID/HD Diesel 14 SA-5 Charging System Verification 15 SA-6 Wiring Diagram Practice 16 SA-7 Expected Voltages 20 SA-8 Measured Voltages 24 SA-9 Engine Performance Fault Diagnosis Template 28 consulab.com info@consulab.com 3 95-HV-950 General description General description The HV-950 family of diesel engine trainers are fully operational engines mounted on a mobile stand. The trainers are easy to work on and all major components, wiring and connectors match OEM configuration. Each trainer is either a one or two piece construction design depending on the model. The one piece diesel bench has the actual engine mounted on a mobile stand constructed of 2” (5 cm) tubular steel equipped with four 5” (12.5 cm) phenol casters (2-fixed and 2-swivel w/locks), and may or may not include the after-treat- ment unit on top. The two piece diesel bench has the exhaust after-treatment unit apart that must be properly con- nected to the engine prior to demonstrations or assignments. Students can perform many ASE Educational Foundation related Engine Performance and Electrical/Electronic tasks using this trainer. Trainers are equipped with safety guards covering all rotating components. Educational Advantages • Demonstration of major engine systems to groups of students without the access limitations of a complete vehicle. • Engine systems respond to inserted fauts with real world symptoms, OEM DTC’s and check engine light operation. • Functional DLC using SAE J1939 protocols. • Demostration of exhaust after treatment emission system operation if applicable. TWO-PIECE DIESEL ENGINE TRAINER ONE-PIECE DIESEL ENGINE TRAINER consulab.com info@consulab.com 4 95-HV-950 Student Assignments Student Assignments consulab.com info@consulab.com 5 95-HV-950 SA-1 Component identification — Basic SA-1 Component Identification — Basic (2 pages) In preparation to diagnosing any engine management issues, one has to know what they are working on first. This exer- cise is step one in getting familiar with this trainer. Using service information fill in each blank with as much information as possible. Component Function Location HV-950 Diesel Engine Application: Engine Gas or Diesel Engine mounts Transmission Transmission fluid level inspection Coolant Hoses Coolant reservoir & cap Thermostat Cooling Fan Radiator Oil Filter Oil Drain plug Oil dipstick Air Filter Fuel Filter(s) Throttle (body) Positive Crankcase Ventilation system consulab.com info@consulab.com 6 95-HV-950 SA-1 Component identification — Basic Component Function Location Batteries Starter Alternator Belt(s) Exhaust After Treatment DEF Fluid reservoir Fuse box - power DLC Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 7 95-HV-950 SA-2A Component Identification — Specific SA-2A Component Identification — Specific (2 pages) In preparation to diagnosing any engine management issues, one has to know what they are working on first. This exer- cise is step two A in getting familiar with this trainer. Using service information fill in each blank with as much descriptive information as possible. Engine system Engine specific information HV-950 Diesel Engine Application: VIN & decode Engine type Gasoline Diesel Engine model Engine displacement Numbers of cylinders Cylinder numbering Firing order Direction of engine rotation Compression ratio Aspiration Turbo N/A Supercharged Camshaft configuration OHV SOHC DOHC Turbo type Charge air cooler location & function Fuel system type DEF Fluid reservoir J1939 parameter display unit consulab.com info@consulab.com 8 95-HV-950 SA-2A Component Identification — Specific Engine system Engine specific information Glow Plugs (if applicable) Emission Controls EGR DOC SCR w/DEF DPF Other technologies : Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 9 95-HV-950 SA-2B Component Identification — Dashboard Specific SA-2B Component Identification — Dashboard Specific (3 pages) In preparation to diagnosing any engine management issues, one has to know what they are working on first. This exer- cise is step two B in getting familiar with this trainer. Using service information fill in each blank with as much descriptive information as possible. Dash icon & name Description 1. 2. 3. 4. 5. 6. 7. 8. 9. consulab.com info@consulab.com 10 95-HV-950 SA-2B Component Identification — Dashboard Specific Dash icon & name Description 10. 11. 12. 13. Switch Position Function 14. I O 1-2-3 15. I O 16. I O consulab.com info@consulab.com 11 95-HV-950 SA-2B Component Identification — Dashboard Specific Switch Position Function 17. AUTO 18. I O 19. I O 20. I O 21. I O 22. I O 23. 24. Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 12 95-HV-950 SA-3 Component Identification — Sensors ID / HD Diesel SA-3 Component Identification — Sensors ID / HD Diesel (2 pages) In preparation to diagnosing any engine management issues, one has to know what they are working on first. This ex- ercise is step three in getting familiar with this trainer and sensors. Using service information fill in each blank with as much information as possible. Sensor Function Location ECM/PCM Connector & Pin #’s HV-950 Diesel Engine Application: Accelerator pedal position 1 Accelerator pedal position 2 Accelerator Pedal PWM Aftertreatment Intake NOx Aftertreatment Outlet NOx Ambient Air Temp Atmospheric Pressure Boost Pressure Camshaft Position Crankcase Pressure Crankshaft Position DEF Tank Level DEF Tank Temp DEF Dosing Pressure DEF Differential Pressure DPF Outlet Pressure Exhaust Gas Recirculation (EGR) temp consulab.com info@consulab.com 13 95-HV-950 SA-3 Component Identification — Sensors ID / HD Diesel Sensor Function Location ECM/PCM Connector & Pin #’s EGR Differential Pressure Engine Coolant Temp Exhaust Gas Pressure Fan Speed Fuel Contamination Fuel Level Fuel Tank Pressure Fuel Rail Pressure Intake Air Temp/Pressure Manifold Absolute Pressure Mass Air Flow Mass Gas Flow NOx Oil Pressure Universal Exhaust Gas Oxygen (UEGO) Turbo/Intake Air Temp Turbo Speed Sensor Vehicle Speed Sensor Water in Fuel INSERT ANY SENSORS SPECIFIC TO THIS ENGINE Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 14 95-HV-950 SA-4 Component Identification — Actuator ID/HD Diesel SA-4 Component Identification — Actuator ID/HD Diesel In preparation to diagnosing any engine management issues, one has to know what they are working on first. This ex- ercise is step four in getting familiar with this trainer and actuators. Using service information fill in each blank with as much information as possible. Actuator Function Location ECM/PCM Connector & Pin #’s HV-950 Diesel Engine Application: Camshaft Position Actuators DEF Tank Heater Control Valve DEF Dosing Valve Engine Intake Throttle Motor Fuel Pump Actuator Injector 1 Injector 2 Injector 3 Injector 4 Injector 5 Injector 6 Throttle Actuator Controller Variable Geometry Turbo- charger INSERT ANY ACTUATORS SPECIFIC TO THIS ENGINE Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 15 95-HV-950 SA-5 Charging System Verification SA-5 Charging System Verification In preparation to diagnosing any engine management issues, one has to know that the battery, charging system and all related wiring is working correctly first. This exercise is step five in getting familiar with the correct order of diagnosis – battery first! HV-950 Diesel Engine Application: Task Record results & interpret Visual Inspection of Battery Visual Inspection of Alternator Visual Inspection of the Belt Open Circuit Voltage (OCV) State of charge = What can affect this voltage ? Cranking Voltage Lowest voltage observed = Charging System Voltage Is this 2V over OCV ? YES NO Is this system functioning properly ? Voltage drops to verify system integrity Note : Current has to be flowing to perform an accu- rate Voltage Drop Chassis Ground Engine Ground Charging Circuit (+) Charging Circuit (–) Starter (+) Circuit Voltage Drop Starter (–) Circuit Voltage Drop Over or under charging? OVER UNDER Final Charging Voltage Are there any issues that would prevent proceed- ing with diagnosing engine performance issues? Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 16 95-HV-950 SA-6 Wiring Diagram Practice SA-6 Wiring Diagram Practice (4 pages) In preparation to diagnosing any engine management issues, one has to know what they are working on first. This exer- cise is step six in getting familiar with this trainer and wiring to the ECU. Using service information fill in each blank with as much information as possible. HV-950 ECU connector Pin wire Color Circuit # Function (Signal / Control / Reference / ?) Example 1 DK BLU 1161 APP sensor 1 signal consulab.com info@consulab.com 17 95-HV-950 SA-6 Wiring Diagram Practice Pin wire Color Circuit # Function (Signal / Control / Reference / ?) consulab.com info@consulab.com 18 95-HV-950 SA-6 Wiring Diagram Practice Pin wire Color Circuit # Function (Signal / Control / Reference / ?) consulab.com info@consulab.com 19 95-HV-950 SA-6 Wiring Diagram Practice Pin wire Color Circuit # Function (Signal / Control / Reference / ?) Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 20 95-HV-950 SA-7 Expected Voltages SA-7 Expected Voltages (4 pages) Developing an accurate, dependable diagnostic strategy will depend on your understanding of how a system works and what measurements are expected when testing any system. This is an exercise designed to verify a student’s under- standing of certain common engine management systems. Prior knowledge of the principles of operation for the follow- ing systems is required. Having completed SA-6 but before proceeding to SA-8 (where you will actually take voltage measurements at the BOB PIN’s), complete the following chart as best possible with the voltage reading you would expect at the PIN’s identified. Start by verifying B+ at battery and at dashboard test point, then test all BOB PIN points with the KEY OFF to determine if there are any “HOT ALL TIME” PIN’s. HV-950 ECU connector Pin wire Key off KOEO KOER Component / Sensor* Example 1 5 V 4.2 V Engine Coolant Sensor consulab.com info@consulab.com 21 95-HV-950 SA-7 Expected Voltages Pin wire Key off KOEO KOER Component / Sensor* consulab.com info@consulab.com 22 95-HV-950 SA-7 Expected Voltages Pin wire Key off KOEO KOER Component / Sensor* consulab.com info@consulab.com 23 95-HV-950 SA-7 Expected Voltages Pin wire Key off KOEO KOER Component / Sensor* Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 24 95-HV-950 SA-8 Measured Voltages SA-8 Measured Voltages (4 pages) In preparation to diagnosing any engine management issues, one has to know what they are working on first. This exer- cise is step eight in getting familiar with this trainer and break out box. Follow instructions for ignition “KEY” position and then take voltage measurements at the indicated PIN at the breakout box, then record value measured in each blank provied below. Compare results to Student Assignment #7 (SA-7). HV-950 ECU connector Pin wire System / Voltage Key off ACC KOEO KOER Example 1 APP sensor 1 signal 0 V .9V .9V .9V consulab.com info@consulab.com 25 95-HV-950 SA-8 Measured Voltages Pin wire System / Voltage Key off ACC KOEO KOER consulab.com info@consulab.com 26 95-HV-950 SA-8 Measured Voltages Pin wire System / Voltage Key off ACC KOEO KOER consulab.com info@consulab.com 27 95-HV-950 SA-8 Measured Voltages Pin wire System / Voltage Key off ACC KOEO KOER Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 28 95-HV-950 SA-9 Engine Performance Fault Diagnosis Template SA-9 Engine Performance Fault Diagnosis Template Using all the information gathered in Student Activities 1-8 and the repair order style chart below, verify customer con- cern and document your diagnostic process. Be prepared to defend each step. HV-950 Fault # Details Customer Concern Student Observation Explain Strategy Tests Performed Fault Component Input/Output? Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 29 95-HV-950 Notes Notes 400-6330 Zéphirin-Paquet St. Québec QC G2C 0M3 Canada © ConsuLab Educatech Inc, 2026. All rights reserved. General description Educational Advantages Student Assignments SA1 Student assignment #1 Component identification — Basic (2 pages) SA2-A Student assignment #2A Component Identification — Specific (2 pages) SA2-B Student assignment #2B Component Identification — Dashboard Specific ID (3 pages) SA3 Student assignment #3 Component Identification — Sensors ID / HD Diesel(2 pages) SA4 Student assignment #4 Component Identification — Actuator ID/HD Diesel SA5 Student assignment #5 Charging System Verification SA6 Student assignment #6 HV-950 — Wiring diagram practice — ECU connector (4 pages) SA7 Student assignment #7 HV-950- — Expected voltages — ECU connector (4 pages) SA8 Student assignment #8 HV-950- — Measured voltages — ECU connector (4 pages) SA9 Student assignment template HV-950 — Engine performance fault diagnosis — Fault # (4 pages)