Problem Symptoms Table

HINT:

Inspect the fuse and relay before confirming the suspected areas in the table below.

Inspect each suspected area in numerical order for the corresponding symptom.

If the malfunction still exists after checking and confirming that all circuits and components are normal, replace the ECU.

1. FRONT POWER SEAT CONTROL SYSTEM (w/MEMORY) 
   PROBLEM SYMPTOMS TABLE - FRONT POWER SEAT CONTROL SYSTEM
   
   

   Symptom	Suspected Area
   Power seat does not operate (manual or memorized positions).	ECU power source circuit Position control ECU & switch assy (front power seat switch)
   One of the power seat functions does not operate (manual or memorized positions).	Power seat motor circuit Position control ECU & switch assy (front power seat switch)
   One or all manual seat functions do not operate (memorized positions OK).	Position control ECU & switch assy (front power seat switch)
   Memory function does not operate.	Memory switch circuit Multiplex communication system Position control ECU & switch assy (front power seat switch)
   No memory functions operate or all memory functions operate briefly and then stop (manual functions OK).	ECU power source circuit Position control ECU & switch assy (front power seat switch)
   One memory function does not operate or operates briefly and then stops (manual functions OK).	Power seat motor assy Position control ECU & switch assy (front power seat switch)