How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the front power seat 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. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK 
4. INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN)* 
   1. Use the Techstream to check if the Multiplex Communication System (MPX) is functioning normally.

      Result: 

      RESULT CHART
      
      

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

   B:  GO to MULTIPLEX COMMUNICATION SYSTEM

   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. See DATA LIST / ACTIVE TEST 
   2. See TERMINALS OF ECU 
   3. See ON-VEHICLE INSPECTION 
   4. Inspection
      1. See SEAT MEMORY SWITCH 
      2. See POWER SEAT SWITCH 
      3. See POWER SEAT MOTOR ASSEMBLY 
      4. See FRONT POWER SEAT LUMBAR SWITCH 
7. REPAIR OR REPLACE 
8. CONFIRMATION TEST 

   NEXT: END