How To Proceed With Troubleshooting

HINT: 

• Use these procedures to troubleshoot the occupant classification system.
• *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. INSPECT BATTERY VOLTAGE 

   Standard voltage

   11 to 14 V

   If the voltage is below 11 V, recharge or replace the battery before proceeding.

   NEXT: Go to next step 

3. CUSTOMER PROBLEM ANALYSIS 
   1. Confirm customer problem symptoms. Refer to HOW TO PROCEED WITH TROUBLESHOOTING .

      NEXT: Go to next step 

4. CHECK FOR DTC* 
   1. Check for DTCs and note any codes that are output. Refer to DTC CHECK / CLEAR .
   2. Clear the DTCs. Refer to DTC CHECK / CLEAR .
   3. Recheck for DTCs. Refer to DTC CHECK / CLEAR . Based on the DTCs output above, try to force output of the same CAN communication system DTC or occupant classification system DTC by simulating the symptoms indicated by the DTC.
      RESULT:
      
      

      Result	Proceed to
      DTC is not output	A
      CAN communication system DTC is output	B
      Occupant classification system DTC is output	C

      B → Go to DIAGNOSTIC TROUBLE CODE CHART. Refer to  PRECAUTION 

      C → Go to DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART  

      A: Go to next step 

5. PROBLEM SYMPTOMS TABLE 
   1. Refer to the Problem Symptoms Table. Refer to PROBLEM SYMPTOMS TABLE .
      RESULT:
      
      

      Result	Proceed to
      Fault is not listed in problem symptoms table	A
      Fault is listed in problem symptoms table	B

      B → Go to step 6 

      A: Go to next step 

6. OVERALL ANALYSIS AND TROUBLESHOOTING* 
   1. Terminals of ECU. Refer to TERMINALS OF ECU 
   2. Data List / Active Test. Refer to DATA LIST / ACTIVE TEST 

      NEXT: Go to next step 

7. ADJUST, REPAIR OR REPLACE 

   NEXT: Go to next step 

8. CONFIRMATION TEST 

   NEXT → END