How To Proceed With Troubleshooting

HINT:

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

1. VEHICLE BROUGHT TO WORKSHOP 
2. INSPECT BATTERY VOLTAGE 

   Standard voltage: 11 to 14 V 

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

3. CUSTOMER PROBLEM ANALYSIS 
   1. Confirm customer problem symptoms (See HOW TO PROCEED WITH TROUBLESHOOTING ).
4. CHECK FOR DTC* 
   1. Check for DTCs and note any codes that are output (See DTC CHECK / CLEAR  ).
   2. Clear the DTCs (See DTC CHECK / CLEAR  )
   3. Recheck for DTCs (See 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 CHART
      
      

      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  (See CAN COMMUNICATION SYSTEM )

   C: Go to DIAGNOSTIC TROUBLE CODE CHART  (See DIAGNOSTIC TROUBLE CODE CHART  )

   A: Go to Next Step 

5. PROBLEM SYMPTOMS TABLE 
   1. Refer to the PROBLEM SYMPTOMS TABLE  (See ).

      Result: 

      RESULT CHART
      
      

      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 (See TERMINALS OF ECU  )
   2. Data List / Active Test (See DATA LIST / ACTIVE TEST  )
7. ADJUST, REPAIR OR REPLACE 
8. CONFIRMATION TEST 

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