Diagnosis Procedure

Regarding Wiring Diagram information, refer to WIRING DIAGRAM - JAPAN PRODUCTION , or WIRING DIAGRAM - USA PRODUCTION .

1. CHECK SEAT MEMORY INDICATOR CIRCUIT
   
   
   1. Turn ignition switch OFF.
   2. Disconnect driver seat control unit and seat memory switch.
   3. Check continuity between driver seat control unit harness connector and seat memory switch harness connector.

      Driver seat control unit		Seat memory switch		Continuity
      Connector	Terminal	Connector	Terminal
      B213	23	D15	6	Yes
      	7		7

   4. Check continuity between driver seat control unit harness connector and ground.

      Driver seat control unit		Ground	Continuity
      Connector	Terminal
      B213	23		No
      	7

   Is the inspection result normal?

   YES 

   GO TO STEP 2. 

   NO 

   Repair or replace harness.

2. CHECK MEMORY INDICATOR POWER SUPPLY
   
   

   Check voltage between seat memory switch harness connector and ground.

   (+)		(-)	Voltage (V) (Approx.)
   Seat memory switch
   Connector	Terminals
   D15	5	Ground	Battery voltage

   Is the inspection result normal?

   YES 

   GO TO STEP 3. 

   NO 

   Check the following:

   • 10A fuse No. 1.
   • Harness for open or short between memory indicator and fuse.
3. CHECK MEMORY INDICATOR
   
   

   Refer to COMPONENT INSPECTION .

   Is the inspection result normal?

   YES 

   GO TO STEP 4  .

   NO 

   Replace seat memory switch. Refer to REMOVAL AND INSTALLATION .

4. CHECK INTERMITTENT INCIDENT
   
   

   Refer to INTERMITTENT INCIDENT .

   Is the inspection result normal?

   YES 

   Replace driver seat control unit. Refer to REMOVAL AND INSTALLATION .

   NO 

   Repair or replace the malfunctioning part.