How To Proceed With Troubleshooting

HINT: 

*: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. CUSTOMER PROBLEM ANALYSIS 
   1. Interview the customer and confirm the problem. Refer to HOW TO PROCEED WITH TROUBLESHOOTING .

      NEXT: Go to next step 

3. CHECK DTC AND FREEZE FRAME DATA* 
   1. Check and record DTCs and Freeze Frame Data.
   2. Clear the DTCs and Freeze Frame Data. Refer to DTC CHECK / CLEAR  for DTC Check/Clear, and. Refer to FREEZE FRAME DATA  for Freeze Frame Data).
   3. Reconfirm the DTCs.
      1. Reconfirm the DTCs based on the recorded DTCs and Freeze Frame Data. Refer to DTC CHECK / CLEAR  for DTC Check/Clear, and. Refer to FREEZE FRAME DATA  for Freeze Frame Data).

         HINT: 

         • When DTCs indicating CAN communication system malfunctions are output, repair the CAN communication system before repairing each corresponding sensor. Refer to HOW TO PROCEED WITH TROUBLESHOOTING .
         • If any of DTCs U0123/62, U0124/95, U0126/63, and U0293/59 is output together with a CAN communication DTC, first check the appropriate sensor for a momentary open circuit. Refer to CHECK FOR INTERMITTENT PROBLEMS .
         • If the Techstream cannot communicate with the skid control ECU, inspect the CAN communication system. Refer to HOW TO PROCEED WITH TROUBLESHOOTING .
         • If there is no response from the skid control ECU, inspect the IG1 circuit of the skid control ECU. Refer to DTC C1241/41: Low Battery Positive Voltage; DTC C1242/42: Open in IG1 / IG2 Power Source Circuit .

         Result

         Result	Proceed to
         DTC is output	A
         DTC is not output (Problem symptom does not occur)	B
         DTC is not output (Problem symptom occurs)	C

      B → Go to   5 

      C → Go to   6 

      A: Go to next step 

4. DIAGNOSTIC TROUBLE CODE CHART 
   1. Proceed to Diagnostic Trouble Code Chart. Refer to DIAGNOSTIC TROUBLE CODE CHART .

      NEXT → Go to   7 

5. SYMPTOM SIMULATION 
   1. Proceed to How to Proceed with Troubleshooting. Refer to HOW TO PROCEED WITH TROUBLESHOOTING .

      NEXT: Go to next step 

6. PROBLEM SYMPTOMS TABLE 
   1. Proceed to Problem Symptoms Table. Refer to PROBLEM SYMPTOMS TABLE .

      NEXT: Go to next step 

7. CIRCUIT INSPECTION* 

   NEXT: Go to next step 

8. IDENTIFICATION OF PROBLEM 

   NEXT: Go to next step 

9. REPAIR OR REPLACEMENT 

   NEXT: Go to next step 

10. CONFIRMATION TEST* 

    NEXT → END