Toyota Course 072
|Vehicle: |Year/Prod. Date: |Engine: |Transmission: |
Worksheet Objectives
In this worksheet you will experience hybrid malfunctions by viewing Diagnostic Trouble Codes (DTCs), Information Codes, and the HV ECU Data List.
Tools and Equipment
• Vehicle
• Diagnostic Tester
• Printer
• Repair Manual
• Electrical Wiring Diagrams
Section 1: Hybrid Diagnosis
1. When starting the vehicle, (READY light ON) do any warning lights illuminate? If so, which ones?
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2. Connect the Diagnostic Tester to DLC3 (OBD II connection under steering column).
3. Select CODES ALL to check all the ECUs.
4. How many systems are checked when using CODES ALL?
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5. List the systems that show NG (No Good).
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6. Now view the Information Codes by pressing enter on the systems that say NG, then press enter again. Highlight the number next to INFORMATION and press enter.
7. Use the Repair Manual to look up the DTC and Information Code in order to find what part of the system is affected. List this information below.
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8. Is there any information in the HV ECU Data List that can help you diagnose the vehicle? If so, print and highlight the information.
9. After diagnosing the vehicle, clear the codes and return to the classroom.
Hint: To clear DTCs, you must exit out of CODES ALL and enter each section individually
|Name: |Date: |
Self-assessment Objectives
Review this sheet as you are doing the Hybrid Diagnostic Trouble Codes worksheet. Check off either category after completing the worksheet and instructor presentation. Ask the instructor if you have questions. The Comments section is for you to write notes on where to find the information, questions, etc.
|Topic | | |Comment |
|Locate vehicle warning lights. | | | |
|View Codes All using the Diagnostic Tester. | | | |
|View the Information Codes. | | | |
|Use a data base system & Repair Manual to research these codes. | | | |
|View the HV ECU Data List. | | | |
|Clear Codes. | | | |
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