How To Proceed With Troubleshooting

The intelligent tester can be used in steps  2,  3,  5,  7,  9 and  10.

1. VEHICLE BROUGHT TO WORKSHOP 
2. CHECK MULTIPLEX COMMUNICATION SYSTEM 
   1. Check for DTC output.

   DTC IS OUTPUT: CHECK MULTIPLEX COMMUNICATION CIRCUIT 

   DTC IS NOT OUTPUT: Go to step 3 

3. CHECK CAN COMMUNICATION SYSTEM 
   1. Check for DTC output.

   DTC IS OUTPUT: CHECK CAN COMMUNICATION CIRCUIT 

   DTC IS NOT OUTPUT: Go to step 4 

4. WARNING LIGHT CHECK 
5. CHECK DTC (Present and Past DTCs) 

   DTC IS OUTPUT (INCLUDING NORMAL SYSTEM CODE): Go to step 6 

   DTC IS NOT OUTPUT: PROBLEM SYMPTOMS TABLE 

6. DTC CHART 
7. CIRCUIT INSPECTION 
8. REPAIR 
9. CLEAR DTC (Present and Past DTCs) 
10. CHECK DTC (Present and Past DTCs) 

    DTC IS NOT OUTPUT: Go to step 11 

    DTC IS OUTPUT: Go to step  6

11. CONFIRMATION TEST 

    NEXT: END