- HINT:
- Use the following procedures to troubleshoot the ECD system.
- *: Use the intelligent tester.
1.VEHICLE BROUGHT TO WORKSHOP |
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2.CUSTOMER PROBLEM ANALYSIS |
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3.CONNECT INTELLIGENT TESTER TO DLC3* |
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HINT:
- If the display indicates a communication error with the tester, inspect the DLC3.
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4.CHECK DTC AND FREEZE FRAME DATA* |
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HINT:
- Record or print DTCs and freeze frame data if necessary.
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5.CLEAR DTC AND FREEZE FRAME DATA* |
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6.CONDUCT VISUAL INSPECTION |
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7.SET CHECK MODE DIAGNOSIS* |
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8.CONFIRM PROBLEM SYMPTOMS |
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- HINT:
- If the engine does not start, first perform the "REFER TO DTC CHART" procedures and "REFER TO PROBLEM SYMPTOMS TABLE" procedures below.
- Result:
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Result Proceed to Malfunction occurs A Malfunction does not occur B
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9.CHECK DTC* |
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- Result:
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Result Proceed to Trouble code A No trouble code B
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10.REFER TO DTC CHART |
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11.CONDUCT BASIC INSPECTION |
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- Result:
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Result Proceed to Malfunctioning parts not confirmed A Malfunctioning parts confirmed B
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12.REFER TO PROBLEM SYMPTOMS TABLE |
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HINT:
- Engine difficult to start or stalling.
- Black smoke emitted.
- Rough idling or excessive engine vibration.
- Engine knocking or rattling.
- Lack of power or hesitation.
- Result:
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Result Proceed to Malfunctioning circuit confirmed A Malfunctioning parts confirmed B
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13.CHECK ECM POWER SOURCE CIRCUIT |
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14.CONDUCT CIRCUIT INSPECTION |
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- Result:
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Result Proceed to Malfunction not confirmed A Malfunction confirmed B
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15.CHECK FOR INTERMITTENT PROBLEMS |
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16.CONDUCT PARTS INSPECTION |
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17.IDENTIFY PROBLEM |
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18.ADJUST AND/OR REPAIR OR REPLACE |
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19.CONDUCT CONFIRMATION TEST |
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