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. | CHECK VEHICLE CONTROL HISTORY AND VEHICLE CONTROL HISTORY FREEZE FRAME DATA* |
(a) Check for Vehicle Control History and Vehicle Control History Freeze Frame Data.
Powertrain > Engine > Utility Tester Display |
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Vehicle Control History (RoB) |
HINT:
Print Vehicle Control History and Vehicle Control History Freeze Frame Data if necessary.
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6. | CLEAR DTC AND FREEZE FRAME DATA* |
(a) Clear the DTCs and Freeze Frame Data.
Powertrain > Engine > Clear DTCs
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7. | CONDUCT VISUAL INSPECTION |
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8. | SELECT CHECK MODE DIAGNOSIS* |
(a) Change the ECM from normal mode to check mode.
Powertrain > Engine > Utility Tester Display |
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Check Mode |
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9. | 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.
Result | Proceed to |
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Malfunction does not occur | A |
Malfunction occurs | B |
B | GO TO STEP 11 |
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10. | SIMULATE SYMPTOMS |
HINT:
Refer to Symptom Simulation.
Click here
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11. | CHECK DTC* |
(a) Check for DTCs.
Powertrain > Engine > Trouble Codes Result | Proceed to |
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DTCs are output | A |
DTCs are not output | B |
B | GO TO STEP 13 |
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12. | REFER TO DTC CHART |
HINT:
Refer to Diagnostic Trouble Code Chart.
Click here
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13. | CONDUCT BASIC INSPECTION |
(a) Conduct basic inspection.
Click here
Result | Proceed to |
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Malfunctioning parts not confirmed | A |
Malfunctioning parts confirmed | B |
B | GO TO STEP 18 |
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14. | REFER TO PROBLEM SYMPTOMS TABLE |
HINT:
Refer to Problem Symptoms Table.
Click here
Result | Proceed to |
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Malfunctioning circuit confirmed | A |
Malfunctioning parts confirmed | B |
B | GO TO STEP 18 |
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15. | CHECK ECM POWER SOURCE CIRCUIT |
(a) Check the ECM power source circuit.
Click here
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16. | CONDUCT CIRCUIT INSPECTION |
Result | Proceed to |
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Malfunction not confirmed | A |
Malfunction confirmed | B |
B | GO TO STEP 19 |
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17. | CHECK FOR INTERMITTENT PROBLEMS |
(a) Check for intermittent problems.
Click here
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18. | CONDUCT PARTS INSPECTION |
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19. | IDENTIFY PROBLEM |
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20. | ADJUST AND/OR REPAIR |
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21. | CONDUCT CONFIRMATION TEST |
NEXT | END |