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 on the CAN communication system first.
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4. | CHECK DTC AND FREEZE FRAME DATA* |
(a) Check for DTCs.
Click here
(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.
Click here
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6. | CONDUCT VISUAL INSPECTION |
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7. | SELECT CHECK MODE DIAGNOSIS* |
(a) Switch the ECM from normal mode to check mode.
Click here
Tester Display |
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Check Mode |
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8. | CONFIRM PROBLEM SYMPTOMS |
(a) Confirm problem symptoms.
HINT:
If the engine does not start, first perform the "Check DTC" procedure and "Conduct Basic Inspection" procedure below.
Result | Proceed to |
---|---|
Malfunction does not occur | A |
Malfunction occurs | B |
B | ![]() | GO TO STEP 10 |
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9. | SIMULATE SYMPTOMS |
HINT:
Refer to Symptom Simulation.
Click here
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10. | CHECK DTC* |
(a) Check for DTCs.
Click here
Result | Proceed to |
---|---|
DTCs are output | A |
DTCs are not output | B |
B | ![]() | GO TO STEP 12 |
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11. | REFER TO DTC CHART |
HINT:
Refer to Diagnostic Trouble Code Chart.
Click here
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12. | CONDUCT BASIC INSPECTION |
(a) Conduct basic inspection.
Click here
Result | Proceed to |
---|---|
Malfunctioning parts not confirmed | A |
Malfunctioning parts confirmed | B |
B | ![]() | GO TO STEP 17 |
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13. | REFER TO PROBLEM SYMPTOMS TABLE |
HINT:
Refer to Problem Symptoms Table.
Click here
Result | Proceed to |
---|---|
Malfunctioning circuit confirmed | A |
Malfunctioning parts confirmed | B |
B | ![]() | GO TO STEP 17 |
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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 |
Result | Proceed to |
---|---|
Malfunction not confirmed | A |
Malfunction confirmed | B |
B | ![]() | GO TO STEP 18 |
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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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18. | IDENTIFY PROBLEM |
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19. | ADJUST AND/OR REPAIR |
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20. | CONDUCT CONFIRMATION TEST |
NEXT | ![]() | END |
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