POWER MIRROR CONTROL SYSTEM Power Mirror Surface Position is not Memorized

SYSTEM DESCRIPTION

The outer rear view mirror assembly LH and RH have a mirror position sensor. The position control ECU and switch sends instructions to the outer mirror control ECU assembly LH and RH. Then the outer mirror control ECU assembly LH and RH receive mirror information from the mirror position sensors, and memorizes the mirror positions.

CAUTION / NOTICE / HINT

• The power mirror control system uses the CAN communication system and LIN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the power mirror control system after confirming that the communication systems are functioning properly (See page ).

  Click here

• If the main body ECU (multiplex network body ECU) is replaced, refer to the Entry and Start System (for Entry Function) Click here.

• The mirror surface position will not be memorized if the engine switch is not on (IG).

• The mirror surface position will not be stored if the seat memory SET switch and 2 or more seat memory switches are pressed simultaneously.

• If the operation fails, the mirror surface position will not be memorized until the seat memory SET switch is released and the operation is attempted again.

• The mirror surface position will not be memorized when the mirror is operated manually.

PROCEDURE

1. READ VALUE USING GTS (SEAT MEMORY SWITCH)

   
   

   1. Check the Data List for proper functioning of the seat memory switch Click here.

      Mirror L

      Tester Display	Measurement Item/Display	Normal Condition	Diagnostic Note
      Mirror Memory No.1	Mirror position memorized in seat memory switch 1 / ON or OFF	ON: Seat memory switch M1 switch on OFF: Seat memory switch M1 switch off	-
      Mirror Memory No.2	Mirror position memorized in seat memory switch 2 / ON or OFF	ON: Seat memory switch M2 switch on OFF: Seat memory switch M2 switch off	-
      Mirror Memory No.3	Mirror position memorized in seat memory switch 3 / ON or OFF	ON: Seat memory switch M3 switch on OFF: Seat memory switch M3 switch off	-

      Mirror R

      Tester Display	Measurement Item/Display	Normal Condition	Diagnostic Note
      Mirror Memory No.1	Mirror position memorized in seat memory switch 1 / ON or OFF	ON: Seat memory switch M1 switch on OFF: Seat memory switch M1 switch off	-
      Mirror Memory No.2	Mirror position memorized in seat memory switch 2 / ON or OFF	ON: Seat memory switch M2 switch on OFF: Seat memory switch M2 switch off	-
      Mirror Memory No.3	Mirror position memorized in seat memory switch 3 / ON or OFF	ON: Seat memory switch M3 switch on OFF: Seat memory switch M3 switch off	-

      OK
      On the GTS screen, each item changes between ON and OFF according to above chart.

   
   

   NG

   INSPECT SEAT MEMORY SWITCH Click here

   OK

2. CHECK SEAT MEMORY SWITCH FUNCTION

   
   

   1. Check that the seat memory switch function Click here.

      OK
      Driver side seat can be moved using seat memory switch.

   
   

   NG

   GO TO FRONT POWER SEAT CONTROL SYSTEM Click here

   OK

3. CHECK MEMORY AND REACTIVATION FUNCTION

   
   

   1. Check the memory and reactivation functions Click here.

      OK
      Driver side seat position can be memorized using seat memory switch.

      Result

      Result	Proceed to
      Both outer rear view mirror assembly LH and RH are malfunction (for LHD)	A
      Both outer rear view mirror assembly LH and RH are malfunction (for RHD)	B
      Only outer rear view mirror assembly LH is malfunction	C
      Only outer rear view mirror assembly RH is malfunction	D

   
   

   A

   REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

   B

   REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

   D

   REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH Click here

   C

4. REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH

   
   

   1. Replace the outer rear view mirror assembly LH with a new or known good one Click here.

   
   

   NEXT

5. CHECK MEMORY AND REACTIVATION FUNCTION

   
   

   1. Check the memory and reactivation functions Click here.

      OK
      Memory and reactivation function operates normally.

   
   

   OK

   END (OUTER REAR VIEW MIRROR ASSEMBLY LH WAS DEFECTIVE)

   NG

   REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH Click here

6. REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH

   
   

   1. Replace the outer rear view mirror assembly RH with a new or known good one Click here.

   
   

   NEXT

7. CHECK MEMORY AND REACTIVATION FUNCTION

   
   

   1. Check the memory and reactivation functions Click here.

      OK
      Memory and reactivation function operates normally.

   
   

   OK

   END (OUTER REAR VIEW MIRROR ASSEMBLY RH WAS DEFECTIVE)

   NG

   REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH Click here

8. INSPECT SEAT MEMORY SWITCH

   
   

   1. Remove the seat memory switch Click here.

   2. Inspect the seat memory switch Click here.

   
   

   OK

   REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH Click here

   NG

   REPLACE SEAT MEMORY SWITCH Click here