How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the power door lock control system.
• *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 
2. INSPECT BATTERY VOLTAGE 

   Standard voltage: 11 to 14 V 

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

3. CHECK FOR DTC (ELECTRIC POWER CONTROL SYSTEM)* 
   1. Using the Techstream, check if the electric power control system is functioning normally.

      Result 

      RESULT REFERENCE
      
      

      Result	Proceed to
      DTC B22B3 is not output	A
      DTC B22B3 is output	B

   B: Go to ELECTRIC POWER CONTROL SYSTEM  (See ELECTRIC POWER CONTROL SYSTEM )

   A: Go to Next Step 

4. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* 
   1. Use the Techstream to check if the CAN Communication System is functioning normally.

      Result 

      RESULT REFERENCE
      
      

      Result	Proceed to
      CAN DTC is not output	A
      CAN DTC is output	B

   B: Go to CAN COMMUNICATION SYSTEM  (See CAN COMMUNICATION SYSTEM )

   A: Go to Next Step 

5. CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM* 
   1. Use the Techstream to check if the LIN Communication System is functioning normally.

      Result 

      RESULT REFERENCE
      
      

      Result	Proceed to
      LIN DTC is not output	A
      LIN DTC is output	B

   B: Go to LIN COMMUNICATION SYSTEM  (See LIN COMMUNICATION SYSTEM )

   A: Go to Next Step 

6. CHECK FOR DTC* 
   1. Check for DTCs (see DTC CHECK/CLEAR  ).
   2. Clear the DTCs (see DTC CHECK/CLEAR  ).
   3. Recheck for DTCs (see DTC CHECK/CLEAR  ).

      Result 

      RESULT REFERENCE
      
      

      Result	Proceed to
      DTC does not reoccur	A
      DTC reoccurs	B

   B: Go to DIAGNOSTIC TROUBLE CODE CHART 

   A: Go to Next Step 

7. PROBLEM SYMPTOMS TABLE 

   Result 

   RESULT REFERENCE
   
   

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

   B: Go to step  9

   A: Go to Next Step 

8. OVERALL ANALYSIS AND TROUBLESHOOTING* 
   1. Operation Check (see OPERATION CHECK  )
   2. Data List /Active Test (see DATA LIST / ACTIVE TEST  )
   3. Terminals of ECU (see TERMINALS OF ECU  )
9. ADJUST, REPAIR OR REPLACE 
10. CONFIRMATION TEST 

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