CAUTION / NOTICE / HINT HINT: *: Use the Techstream. PROCEDURE
| 1. |
VEHICLE BROUGHT TO WORKSHOP |
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| 2. |
CUSTOMER PROBLEM ANALYSIS |
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| 3. |
CONNECT TECHSTREAM TO DLC3* | HINT:
If the display indicates a communication malfunction, inspect the DLC3.
When any CAN communication system DTCs are output, perform troubleshooting for the CAN communication system first.
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| 4. |
CHECK DTC AND FREEZE FRAME DATA* | (a) Check for DTCs. Powertrain > Engine > Trouble Codes
(b) Check for Freeze Frame Data. Click here
 HINT: Record or print DTCs and Freeze Frame Data if necessary.
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| 5. |
CLEAR DTC AND FREEZE FRAME DATA* | (a) Clear the DTCs and Freeze Frame Data. Powertrain > Engine > Clear DTCs
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| 6. |
CONDUCT VISUAL INSPECTION |
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| 7. |
SELECT CHECK MODE DIAGNOSIS* | (a) Change the ECM from normal mode to check mode. Powertrain > Engine > Utility
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Tester Display | | Check Mode |
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| 8. |
CONFIRM PROBLEM SYMPTOMS | (a) Confirm the problem symptoms.
HINT: If the engine does not start, first perform the "Check DTC" procedure and "Conduct Basic Inspection" procedure below.
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Result | Proceed to | |
Malfunction does not occur |
A | | Malfunction occurs |
B |
| B |
 | GO TO STEP 10 |
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A | |
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HINT: Refer to Symptom Simulation.
Click here
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(a) Check for DTCs. Powertrain > Engine > Trouble Codes
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Result | Proceed to | |
DTCs are output | A | |
DTCs are not output | B |
| B |
| GO TO STEP 12 |
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A | |
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HINT: Refer to Diagnostic Trouble Code Chart.
Click here
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| 12. |
CONDUCT BASIC INSPECTION | (a) Conduct basic inspection.
Click here
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Result | Proceed to | |
Malfunctioning parts not confirmed |
A | | Malfunctioning parts confirmed |
B |
| B |
| GO TO STEP 17 |
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A | |
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| 13. |
REFER TO PROBLEM SYMPTOMS TABLE | HINT:
Refer to Problem Symptoms Table. Click here
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Result | Proceed to | |
Malfunctioning circuit confirmed |
A | | Malfunctioning parts confirmed |
B |
| B |
| GO TO STEP 17 |
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A | |
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| 14. |
CHECK ECM POWER SOURCE CIRCUIT | (a) Check the ECM power source circuit.
Click here
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| 15. |
CONDUCT CIRCUIT INSPECTION |
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Result | Proceed to | |
Malfunction not confirmed |
A | | Malfunction confirmed |
B |
| B |
| GO TO STEP 18 |
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A | |
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| 16. |
CHECK FOR INTERMITTENT PROBLEMS | (a) Check for intermittent problems.
Click here
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| 17. |
CONDUCT PARTS INSPECTION |
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| 20. |
CONDUCT CONFIRMATION TEST |
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| END | | 
