How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the wireless door lock control system.
• The hand-held tester should be used in steps 3, 4 and 6.

1. VEHICLE BROUGHT TO WORKSHOP 

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2. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK (See  CUSTOMER PROBLEM ANALYSIS CHECK   ) 

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3. INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN) 
   1. Use the hand-held tester to check if the Multiplex Communication System (MPX) is functioning normally.

      Result: 

      RESULT
      
      

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

   1. B: Go to MULTIPLEX COMMUNICATION SECTION (See  DIAGNOSTIC TROUBLE CODE CHART  ) 
   2. A 
4. CHECK FOR DTC 
   1. Check for DTCs and note any codes that are output.
   2. Delete the DTC.
   3. Recheck for DTCs. Try to prompt the DTC by simulating the original activity that the DTC suggests.

      Result: 

      RESULT
      
      

      Result	Proceed to
      DTC does not reoccur	A
      DTC reoccurs	B

   1. B: Go to step   7 
   2. A 
5. (See  PROBLEM SYMPTOMS TABLE   ) 

   Result: 

   RESULT
   
   

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

   1. B: Go to step   7 
   2. A 
6. OVERALL ANALYSIS AND TROUBLESHOOTING 
   1. (See DATA LIST/ACTIVE TEST  )
   2. (See TERMINALS OF ECU  )
   3. (See ON-VEHICLE INSPECTION  )
   4. (See INSPECTION )

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7. ADJUST, REPAIR OR REPLACE 

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8. CONFIRMATION TEST 

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   END