How To Proceed With Troubleshooting

HINT: 

• Use the following procedure to troubleshoot the front power seat control system (w/ Memory).

• *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. CUSTOMER PROBLEM ANALYSIS 
   1. Interview the customer to confirm the trouble. Refer to HOW TO PROCEED WITH TROUBLESHOOTING .

      NEXT: Go to next step 

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

      Standard Voltage

      11 to 14 V

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

      NEXT: Go to next step 

4. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* 
   1. Use the Techstream to check if the CAN communication system is functioning normally. Refer to DIAGNOSIS SYSTEM .

      Result

      Result	Proceed to
      CAN DTCs are not output	A
      CAN DTCs are output	B

      B → Go to CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING 

      A: Go to next step 

5. INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM* 
   1. Use the Techstream to check if the LIN communication system is functioning normally. Refer to DTC CHECK / CLEAR .

      Result

      Result	Proceed to
      LIN DTCs are not output	A
      LIN DTCs are output	B

      B → GO TO LIN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING 

      A: Go to next step 

6. CHECK FOR DTC* 
   1. Check for DTCs and note any codes that are output. Refer to DTC CHECK / CLEAR .
   2. Clear the DTCs.
   3. Recheck for DTCs.

      Result

      Result	Proceed to
      DTCs are not output	A
      DTCs are output	B

      B → Go to DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART  

      A: Go to next step 

7. PROBLEM SYMPTOMS TABLE 
   1. Refer to Problem Symptoms Table. Refer to PROBLEM SYMPTOMS TABLE .

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

      B → Go to step   9 

      A: Go to next step 

8. OVERALL ANALYSIS AND TROUBLESHOOTING* 
   1. Operation Check. Refer to OPERATION CHECK 
   2. Data List / Active Test. Refer to DATA LIST / ACTIVE TEST 
   3. Terminals of ECU. Refer to TERMINALS OF ECU 

      NEXT: Go to next step 

9. REPAIR OR REPLACE 

   NEXT: Go to next step 

10. CONFIRMATION TEST 

    NEXT → END