How To Proceed With Troubleshooting

HINT

• Use these procedures to troubleshoot the wiper and washer system
• * Use the intelligent tester or 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. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* 
   1. Use the intelligent tester or Techstream to check if the CAN communication system is functioning normally.

   Result 

   RESULT CHART
   
   

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

   B: Go to CAN COMMUNICATION SYSTEM  (see DIAGNOSIS SYSTEM )

   A: Go to Next Step 

4. CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM* 
   1. Use the intelligent tester or Techstream to check if the LIN communication system is functioning normally

   Result 

   RESULT CHART
   
   

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

   B: Go to LIN COMMUNICATION SYSTEM  (see HOW TO PROCEED WITH TROUBLESHOOTING )

   A: Go to Next Step 

5. PROBLEM SYMPTOMS TABLE 

   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  7

   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. REPAIR OR REPLACE 
8. CONFIRMATION TEST 

   NEXT: END