How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the multiplex communication system.
• *: Use the intelligent tester.

1. VEHICLE BROUGHT TO WORKSHOP 
2. CHECK FOR DTC* 
   1. Check for DTCs and note any codes that are output.
   2. Delete the DTC.
   3. Recheck for DTCs. Try to prompt the DTC by simulating the original activity that the DTC suggests.

      Result 

      RESULT REFERENCE CHART
      
      

      Result	Proceed to
      DTC does not reoccur	A
      DTC reoccurs	B

   B:  GO TO step  4

   A: GO TO Next Step 

3. OVERALL ANALYSIS AND TROUBLESHOOTING 
   1. Terminals of ECU (see TERMINALS OF ECU (2006/02-2006/07)  ).
4. ADJUST, REPAIR OR REPLACE 
5. CONFIRMATION TEST 

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