How To Proceed With Troubleshooting

Total OBD & ECU Auto Diagnostics

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HINT:

*: Use the intelligent tester.

VEHICLE BROUGHT TO WORKSHOP

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CUSTOMER PROBLEM ANALYSIS

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CONNECT INTELLIGENT TESTER TO DLC3*

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HINT:

If the display indicates a communication fault in the tester, inspect the DLC3.

CHECK FOR DTC AND FREEZE FRAME DATA*

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HINT:

Record or print DTCs and freeze frame data, if necessary.

CLEAR DTC AND FREEZE FRAME DATA*

CONDUCT VISUAL INSPECTION

SET CHECK MODE DIAGNOSIS*

NEXT

CONFIRM PROBLEM SYMPTOMS

HINT:

If the engine does not start, first perform the "CHECK DTC" procedures and "CONDUCT BASIC INSPECTION" procedures below. Result

Result

Proceed to

Malfunction does not occur

A

Malfunction occurs

SIMULATE SYMPTOMS

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CHECK FOR DTC*

Result

Result

Proceed to

Trouble code

A

No code

GO TO STEP 12

REFER TO DTC CHART

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GO TO STEP 14

CONDUCT BASIC INSPECTION

Result

Result

Proceed to

Malfunctioning parts not confirmed

A

Malfunctioning parts confirmed

REFER TO PROBLEM SYMPTOMS TABLE

Result

Result

Proceed to

Malfunctioning circuit confirmed

A

Malfunctioning parts confirmed

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