How To Proceed With Troubleshooting

The hand-held tester can be used at steps 3, 5, 6, 7, 8 and 15.

1. VEHICLE BROUGHT TO WORK SHOP 
2. CUSTOMER PROBLEM ANALYSIS (SEE  CUSTOMER PROBLEM ANALYSIS CHECK  ) 
   1. Confirm problem symptoms.
3. CHECK AND CLEAR DTCs (SEE  DTC CHECK/CLEAR  ) 
4. PROBLEM SYMPTOM CONFIRMATION 
   1. SYMPTOM DOES NOT OCCUR (GO TO STEP 5) 
   2. SYMPTOM OCCURS (GO TO STEP   7 ) 
5. SYMPTOM SIMULATION 
6. CHECK BODY MULTIPLEX COMMUNICATION SYSTEM (SEE  HOW TO PROCEED WITH TROUBLESHOOTING  ) 
   1. Check for the DTC output.
   1. MULTIPLEX DTC OUTPUTS (PROCEED TO "BODY MULTIPLEX COMMUNICATION SYSTEM") 
   2. NO MULTIPLEX DTC (GO TO STEP 7) 
7. CHECK CAN COMMUNICATION SYSTEM (SEE  HOW TO PROCEED WITH TROUBLESHOOTING  ) 
   1. Check for the DTC output.
   1. CAN DTC OUTPUTS (PROCEED TO "CAN COMMUNICATION SYSTEM") 
   2. NO CAN DTC (GO TO STEP 8) 
8. DTC CHECK (OTHER THAN MULTIPLEX DTC) (SEE  DTC CHECK/CLEAR  ) 
   1. MALFUNCTION CODE (GO TO STEP 9) 
   2. NORMAL CODE (GO TO STEP   10 ) 
9. DTC CHART (SEE  DIAGNOSTIC TROUBLE CODE CHART  ) 
   1. GO TO STEP 10 
10. PROBLEM SYMPTOMS TABLE (SEE  PROBLEM SYMPTOMS TABLE  ) 
11. TERMINALS OF ECU (SEE  TERMINALS OF ECU  ) 
12. CIRCUIT INSPECTION (SEE  DTC B1244 LIGHT SENSOR CIRCUIT MALFUNCTION   to  CIRCUIT DESCRIPTION  ) 
13. IDENTIFICATION OF PROBLEM 
14. REPAIR OR REPLACE 
15. CONFIRMATION TEST 

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