How To Proceed With Troubleshooting

HINT

• Use the following procedure to troubleshoot the sliding roof system
• *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 
2. CUSTOMER PROBLEM ANALYSIS 

   HINT

   • In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
   • Gather as much information as possible for reference Past problems that seem unrelated may also help in some cases
   • The following 5 items are important points in the problem analysis:
   REFERENCE CHART
   
   

   What	Vehicle, system name
   When	Date, time, occurrence frequency
   Where	Road conditions
   Under what conditions?	Driving conditions, weather conditions
   How did it happen?	Problem symptoms

3. INSPECT BATTERY VOLTAGE 
   1. Measure the battery voltage.

      Standard Voltage: 11 to 14 V 

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

4. INSPECT COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)* 
   1. Using the Techstream, check if the Multiplex Communication System (MPX) is functioning normally (See DIAGNOSTIC TROUBLE CODE CHART ).

      Result 

      RESULT REFERENCE
      
      

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

   B: GO TO MULTIPLEX COMMUNICATION SYSTEM  (See DIAGNOSTIC TROUBLE CODE CHART )

   A: Go to next step 

5. PROBLEM SYMPTOMS TABLE 
   1. Refer to PROBLEM SYMPTOMS TABLE  .

      Result 

      RESULT REFERENCE
      
      

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

   B: Go to step  7

   A: Go to next step 

6. OVERALL ANALYSIS AND TROUBLESHOOTING" 
   1. Operation Check (See OPERATION CHECK  ).
   2. Terminals of ECU (See TERMINALS OF ECU  ).
   3. Data List / Active Test (See DATA LIST / ACTIVE TEST  ).
7. REPAIR OR REPLACE 
8. CONFIRMATION TEST 

   NEXT: END