How To Proceed With Troubleshooting

HINT:

Step 3, 4, 5, 6, 12, 15:

Diagnostic steps permitting the use of the intelligent tester.

1. VEHICLE BROUGHT TO WORKSHOP 
2. CUSTOMER PROBLEM ANALYSIS 
3. CHECK CAN COMMUNICATION SYSTEM 
   1. Check for output DTCs.

      HINT:

      The ECU of this system is connected to the CAN communication system. Therefore before starting troubleshooting, make sure to check that there is no trouble in the CAN communication system.

   CAN COMMUNICATION SYSTEM DTC IS OUTPUT: PROCEED TO CAN COMMUNICATION SYSTEM 

   NO CAN COMMUNICATION SYSTEM DTC IS OUTPUT: GO TO STEP 4 

4. CHECK MULTIPLEX COMMUNICATION SYSTEM 
   1. Check for output DTCs.

      HINT:

      The absorber control ECU sends the signals from each indicator light to the gateway ECU via CAN communication, and the gateway ECU sends the signals to the combination meter assembly via the multiplex communication system (BEAN).

   MULTIPLEX COMMUNICATION SYSTEM DTC IS OUTPUT: PROCEED TO MULTIPLEX COMMUNICATION SYSTEM 

   NO MULTIPLEX COMMUNICATION SYSTEM DTC IS OUTPUT: GO TO STEP 5 

5. CHECK DTCS 
6. CLEAR DTCS 
7. PROBLEM SYMPTOMS CONFIRMATION 

   SYMPTOM DOES NOT OCCUR (Go to step 8) 

   SYMPTOM OCCUR (Go to  step  9)

8. SYMPTOM SIMULATION 
9. CHECK DTC 

   NORMAL CODE (Go to step 10) 

   MALFUNCTION CODE (Go to  step  11)

10. PROBLEM SYMPTOMS TABLE 
11. DTC CHART 
12. CIRCUIT INSPECTION 
13. IDENTIFICATION OF PROBLEM 
14. REPAIR 
15. CONFIRMATION TEST 

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