Power Mirror Surface Position Is Not Memorized

MIRROR (EXT): POWER MIRROR CONTROL SYSTEM (w/ Memory): Power Mirror Surface Position is not Memorized

Power Mirror Surface Position is not Memorized

SYSTEM DESCRIPTION

The outer rear view mirror assembly has a mirror position sensor. The front power seat switch LH sends instructions to the outer mirror control ECU. Then the outer mirror control ECU receives mirror information from the mirror position sensors, and memorizes the mirror positions.

INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC
(a) Use the Techstream to check if the CAN communication system is functioning normally Diagnosis System.

Result





B -- GO TO CAN COMMUNICATION SYSTEM
A -- Continue to next step.

2. CHECK SEAT MEMORY SWITCH FUNCTION (SEAT POSITION MEMORY FUNCTION)
(a) Check that the driver side seat can be moved using the seat memory switch.
OK:
Driver side seat can be moved using seat memory switch.

NG -- GO TO FRONT POWER SEAT CONTROL SYSTEM (POWER SEAT POSITION IS NOT MEMORY)
OK -- Continue to next step.

3. CHECK SEAT MEMORY SWITCH FUNCTION (REGISTRATION OF SEAT MEMORY SWITCH)
(a) Check that the memory operation is properly completed.
NOTICE:
- The seat position will not be recorded if the seat memory SET switch and 2 or more of the seat memory switches (for example, seat memory switch 1 and seat memory switch 2) are pressed simultaneously.
- If the operation fails, the mirror facing direction will not be memorized until the seat memory SET switch is turned off.
- The mirror facing direction will not be memorized when the mirror is operated manually.

OK:
Driver side seat position can be memorized using seat memory switch (for Driver Side).

NG -- READ VALUE USING TECHSTREAM (MIRROR POSITION MEMORY)
OK -- END
4. READ VALUE USING TECHSTREAM (MIRROR POSITION MEMORY)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream ON.
(d) Enter the following menus: Body Electrical / Mirror / Data List.
(e) According to the display on the Techstream, read the Data List.

Mirror





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

NG -- REPLACE OUTER MIRROR CONTROL ECU
OK -- REPLACE FRONT POWER SEAT SWITCH LH